Search | Preprints.org

Preprint REVIEW | doi:10.20944/preprints202309.0912.v1

The Issue of Extrusion and Dislocation in Titanium Middle Ear Prostheses: A Literature Review

Pietro Canzi, Elena Carlotto, Luca Bruschini, Domenico Minervini, Mario Mosconi, Laura Caliogna, Ilaria Ottoboni, Cesare Chiapperini, Francesco Lazzerini, Francesca Forli, Stefano Berrettini, Marco Benazzo

Subject: Medicine And Pharmacology, Otolaryngology Keywords: middle ear; ossicular replacement prosthesis; titanium; extrusion; dislocation; complication; hearing

Online: 14 September 2023 (03:47:04 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202309.0877.v1

Enhancing

Junhee Han, Minchul Ha, Junteak Lee, Donghyun Kim, Dohyung Lee

Subject: Engineering, Chemical Engineering Keywords: precipitation process; multiphase CFD simulation; titanium dioxide; particle size; particle distribution; thermal mixing rate

Online: 13 September 2023 (10:38:21 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202309.0735.v1

Investigation on the Lubrication Performance of γ-Al2O3/ZnO Hybrid Nanofluids for Titanium Alloy

Ye Yang, Hao Luan, Fengbin Liu, Lina Si, Hongjuan Yan, Chao Xing, Chenhui Zhang

Subject: Engineering, Mechanical Engineering Keywords: Hybrid nanofluids; titanium alloy; lubricating properties; synergistic lubrication

Online: 12 September 2023 (08:51:50 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202309.0503.v1

Knowledge and Awareness of Iron Deficiency Anemia among Female Students in Dubai

Maryam Alhatemi, Dalia Haroun

Subject: Public Health And Healthcare, Primary Health Care Keywords: iron deficiency anemia; IDA; anemia; knowledge; awareness

Online: 7 September 2023 (11:13:08 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202309.0283.v1

The Behaviour of Polymeric Pipes in Drinking Water Distribution System. Comparison with Other Pipe Materials

Daniela Simina Stefan, Magdalena Bosomoiu, Georgeta Teodorescu

Subject: Environmental And Earth Sciences, Water Science And Technology Keywords: tap water; polymeric pipe; concrete pipe; iron pipe; lead pipe; leaching; corrosion.

Online: 5 September 2023 (11:53:49 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202309.0071.v1

Molecular Mechanisms of Oxygen Evolution Reactions for Artificial Photosynthesis

Yoshio Nosaka

Subject: Chemistry And Materials Science, Physical Chemistry Keywords: oxygen evolution reaction; catalysis; mechanism; artificial photosynthesis; titanium oxide; bismuth vanadate; perovskite; metal oxides; Fourier transform infrared spectroscopy; density functional theory; metal oxide; solar to hydrogen conversion efficiency

Online: 1 September 2023 (13:52:27 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202308.2179.v1

Titanium-Biohybrid Middle Ear Prostheses: A Preliminary In Vitro Study

Mario Mosconi, Elena Carlotto, Laura Caliogna, Micaela Berni, Giulia Gastaldi, Michele Conti, Alice Maria Brancato, Valentina Bina, Domenico Minervini, Stefano Malpede, Anna Chiara Stellato, Francesco Lazzerini, Luca Bruschini, Marco Benazzo, Pietro Canzi

Subject: Medicine And Pharmacology, Otolaryngology Keywords: middle ear; ossicular replacement prosthesis; titanium; bone trasplantation; tissue engineering; hearing loss

Online: 31 August 2023 (12:14:05 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202308.2171.v1

Synthesis of a Novel Polymer- Iron (ΙΙΙ) Complex and Study of Its Anticancer Properties on A375 Melanoma Cell Line

Elham Neisi, Siavash Hasanvandi

Subject: Chemistry And Materials Science, Biomaterials Keywords: 1-(2-((3-amino-2-hydroxypropyl)amino)ethyl)-1'-ethyl-[4,4'-bipyridine]-1,1'-diium; Iron Polymer-Complex; MTT; A375 cells.

Online: 31 August 2023 (10:43:55 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202308.2162.v1

Impact of Deposition Power and Gas Flow Ratio on Tribological Properties of Titanium Vanadium Nitride Thin Films

Kamlesh V. Chauhan, Sushant Rawal, Nicky P. Patel, Dattatraya G. Subhedar

Subject: Engineering, Mechanical Engineering Keywords: Titanium Vanadium Nitride; Sputtering; Tribology; Friction; Wear

Online: 31 August 2023 (10:41:28 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202308.2142.v1

A Mouse Model of Low Adipocyte Transferrin Recapitulates the Phenotype of a Human Genetic Polymorphism Associated with Insulin Sensitivity and Transferrin Expression

Felipe R Lorenzo, Swapan K Das, Alexandra V Harrison, Sandy Sink, Donald A McClain

Subject: Medicine And Pharmacology, Endocrinology And Metabolism Keywords: Transferrin; Iron; Adipocyte; Insulin Resistance; Type 2 Diabetes Mellitus

Online: 31 August 2023 (07:14:33 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202308.2066.v1

Mechanisms and Adsorption Capacities of Natural and Eco-friendly Nanoparticles for Heavy Metals and Phosphate Ions from Water Using the DSD Approach

Jovana Jokić Govedarica, Dragana Tomašević Pilipović, Vesna Gvoić, Đurđa Kerkez, Anita Leovac Maćerak, Nataša Slijepčević, Gábor Kozma, Milena Bečelić Tomin

Subject: Chemistry And Materials Science, Applied Chemistry Keywords: Eco-friendly green synthesis; Nano zero-valent iron; Cadmium; Nickel; Definitive screening design

Online: 31 August 2023 (03:03:28 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint REVIEW | doi:10.20944/preprints202308.1983.v1

Additive Manufacturing Approaches to Design Pore Structures for Development of Bioactive Scaffolds for Orthopedic Applications: A Critical Review

Mikhail V Kiselevskiy, Natalia Yu Anisimova, Alexei V Kapustin, Alexander A Ryzhkin, Daria N Kuznetsova, Veronika V Polyakova, Nariman A Enikeev

Subject: Medicine And Pharmacology, Orthopedics And Sports Medicine Keywords: additive manufacturing; bioactive scaffolds; porous materials; finite element simulation; pore design; microstructure, biocompatibility; mechanical properties, titanium alloys

Online: 30 August 2023 (02:25:24 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202308.1849.v1

Restless Sleep Disorder and Periodic Limb Movements During Sleep in Children with a History of Prematurity

Lourdes M. DelRosso, Hovig Artinian, Maria P. Mogavero, Oliviero Bruni, Raffaele Ferri

Subject: Medicine And Pharmacology, Pediatrics, Perinatology And Child Health Keywords: restless sleep disorder; periodic leg movements during sleep; prematurity; iron deficiency

Online: 28 August 2023 (10:29:19 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202308.1352.v1

Oral Iron Absorption of Ferric Citrate Hydrate and Hepcidin-25 in Hemodialysis Patients: A Prospective, Multicenter, Observational Riona-Oral Iron Absorption Trial

Naohisa Tomosugi, Yoshitaka Koshino, Chie Ogawa, Kunimi Maeda, Noriaki Shimada, Kimio Tomita, Shoichiro Daimon, Tsutomu Shikano, Kazuyuki Ryu, Toru Takatani, Kazuya Sakamoto, Satonori Ueyama, Daisuke Nagasaku, Masato Nakamura, Shibun Ra, Masataka Nishimura, Chieko Takagi, Yoji Ishii, Noritoshi Kudo, Shinsuke Takechi, Takashi Ishizu, Takamoto Yanagawa, Masamichi Fukuda, Yutaka Nitta, Takayuki Yamaoka, Taku Saito, Suzuko Imayoshi, Momoyo Omata, Joji Oshima, Akira Onozaki, Hiroaki Ichihashi, Yasuhisa Matsushima, Hisahito Takae, Ryoichi Nakazawa, Koichi Ikeda, Masato Tsuboi, Keiko Konishi, Shouzaburo Kato, Maki Ooura, Masaki Koyama, Tsukasa Naganuma, Makoto Ogi, Shigeyuki Katayama, Toshiaki Okumura, Shigemi Kameda, Sayuri Shirai

Subject: Medicine And Pharmacology, Urology And Nephrology Keywords: oral iron absorption; ferric citrate hydrate; hemodialysis; hepcidin-25; iron shift

Online: 18 August 2023 (11:20:29 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202308.1324.v1

Chinese Cabbage MYELOBLASTOSIS116 Homolog Confers Cd Tolerance in Yeast through Activation of The Facilitator of Iron Transport 3 which Reduces Cd Accumulation in Chinese Cabbage

Lilong He, Chao Yuan, Bing Cui, Li-Xia Wang, Shu Zhang, Cheng Li, Jing-Juan Li, Ali Anwar, Jianwei Gao

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: MYB116; transcription factor; facilitator of iron transport 3 (FIT3); reduction of Cd accumulation; Chinese cabbage

Online: 18 August 2023 (09:22:42 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202308.1211.v1

Research on Nano-Titanium Modified Phenolic Resin Coating and Corrosion Resistance

Chengwu Zheng, Xingdong Yuan, Xiaojing LI, Xuegang Wang, Fadong Cui, Xiaoliang Wang

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: phenolic resin; nano titanium; modification; anticorrosive

Online: 17 August 2023 (08:40:20 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202308.1111.v1

Spin Label Electron Paramagnetic Resonance Spectroscopy Reveals Effects of Wastewater Filter Membrane Coated with Titanium-Dioxide Nanoparticles on Bovine Serum Albumin

Krisztina Sebők-Nagy, Zoltán Kóta, András Kincses, Ákos Ferenc Fazekas, András Dér, Zsuzsanna László, Tibor Páli

Subject: Environmental And Earth Sciences, Water Science And Technology Keywords: wastewater cleaning; polyvinylidene fluoride filter membrane; titanium-dioxide nano-particles; P25; serum albumin; spin label EPR; fluorescence; dynamic light scattering

Online: 15 August 2023 (08:45:24 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202308.0801.v1

Oxidative and Color Stability of Beef Meat from Steers Finished on Pasture or Concentrate during Retail Display

ALEJANDRA TEREVINTO, MARIA CRISTINA CABRERA, FERNANDA ZACCARI, ALI SAADOUN

Subject: Biology And Life Sciences, Food Science And Technology Keywords: lipid oxidation; protein oxidation; β-carotene; α-tocopherol; fatty acid; heme iron; beef meat; pasture; concentrate

Online: 10 August 2023 (04:18:19 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202308.0578.v1

Influence of pH Value on Microstructure and Properties of Strontium Phosphate Chemical Conversion Coatings on Titanium

Guochao Gu, Yibo Li, Kangqing Zuo, Guiyong Xiao

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: Titanium; phosphate chemical conversion; coating; strontium phosphate

Online: 7 August 2023 (15:30:07 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202308.0402.v1

Bacillus Subtilus Synthesized Iron Oxide Nanoparticles Induced Protein and Gene’s Expression Profile of Rice (Oryza sativa L.) Plant

Sehresh Khan, Nazneen Akhtar, Eui Shik Rha, Shafiq Ur Rehman, Muhammad Jamil

Subject: Biology And Life Sciences, Plant Sciences Keywords: arsenic; iron oxide NPs; transcriptional factor; gene; SDS-PAGE

Online: 4 August 2023 (11:43:13 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202308.0395.v1

Novel Grafted Hydrogel for Iron and Ammonia Removal from Ground Water, Synthesis and Computational Chemistry Study

Hanafy M. Abd El-Salam, Ali El Shafey, Mahmoud K. Abdel-Latif

Subject: Environmental And Earth Sciences, Water Science And Technology Keywords: Grafted hydrogel; Ground water; Ammonia and Iron removal efficiency; DFT and MEP; binding Energy

Online: 4 August 2023 (11:32:16 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint REVIEW | doi:10.20944/preprints202308.0337.v1

Research Status of Aluminum Base Coating on Titanium Alloy

Siqi Zeng, Faguo Li

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: titanium alloy; aluminum; high temperature oxidation resistance; thermal corrosion resistance; wear resistance

Online: 3 August 2023 (10:41:30 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202308.0319.v1

Lithium Iron Phosphate and Nickel-Cobalt-Manganese Ternary Materials for Power Batteries: Attenuation Mechanisms and Modification Strategies

Guanhua Zhang, Min Li, Zimu Ye, Tieren Chen, Jiawei Cao, Hongbo Yang, Chengbo Ma, Zhenggang Jia, Jiwei Xie, Ning Cui, Yueping Xiong

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: lithium iron phosphate (LFP); nickel-cobalt-manganese (NCM); cathode materials; power battery; cycle life; attenuation mechanism

Online: 3 August 2023 (09:30:37 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202308.0057.v1

Titanium Oxynitride Thin Films by Reactive Sputtering with an Independent Pulsing of O2 and N2 Gases

Nicolas Martin, Jean-Marc Cote, Joseph Gavoille, Jean-Yves Rauch

Subject: Physical Sciences, Applied Physics Keywords: titanium oxynitride; reactive sputtering; gas pulsing; target poisoning; duty cycles; enhanced deposition rate

Online: 1 August 2023 (10:30:59 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202307.1681.v1

Delayed Orbital Floor Reconstruction Using a Mirroring Technique and patient-specific implants: a prospective clinical study.

Diana D'Alpaos, Giovanni Badiali, Francesco Ceccariglia, Achille Tarsitano

Subject: Medicine And Pharmacology, Surgery Keywords: orbital reconstruction, enophthalmos, CAD-CAM technique, titanium mesh, HDPE implant, personalized surgery.

Online: 25 July 2023 (11:44:52 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202307.1610.v1

Hybrid Silica Xerogel and Titania/Silica Xerogel Dispersions Reinforcing Hydrophilicity and Antimicrobial Resistance of Leathers

Michael Arkas, Theofanis Bompotis, Konstantinos Giannakopoulos, Evangelos P. Favvas, Marina Arvanitopoulou, Konstantinos Arvanitopoulos, Labros Arvanitopoulos, Georgia Kythreoti, Michail Vardavoulias, Dimitrios Giannakoudakis, Laura Castellsagués, Sara Maria Soto González

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: Titanium oxide; Antibacterial; Antifungal; Antibiofilm; Hyperbranched; Dendrimers; IR spectroscopy; Contact Angle; Electron Dispersion Spectroscopy; poly(ethylene imine)

Online: 25 July 2023 (04:25:15 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202307.1576.v1

Application of Polymer Inclusion Membranes with Tetrabutyl Ammonium Bromide (TBAB) as an Ion Carrier for Separation of Metal Ions from Aqueous Solutions

Beata Pospiech

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: polymer inclusion membranes; iron(III); nickel(II); cobalt(II); lithium(II); ionic liquids; tetrabutyl ammonium bromide(TBAB); separation processes

Online: 24 July 2023 (10:58:58 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202307.1514.v1

The deficits of insulin signal in Alzheimer’s disease and the mechanisms of vanadium compounds in curing AD

Jinyi Yao, Zhijun He, Guanying You, Qiong Liu, Nan Li

Subject: Medicine And Pharmacology, Medicine And Pharmacology Keywords: Vanadium; Alzheimer’s disease; diabetes; insulin resistance; mitochondrial; oxidative phosphorylation

Online: 21 July 2023 (11:30:52 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202307.1492.v1

Contemporary Antiretroviral Therapy Dysregulates Iron Transport and Augments Mitochondrial Dysfunction in HIV-Infected Human Microglia and Neural-Lineage Cells

Harpreet Kaur, Paige Minchella, David Alvarez-Carbonell, Neeraja Purandare, VIJAY K. NAGAMPALLI, Daniel Blankenberg, Todd Hulgan, Mariana Gerschenson, Jonathan Karn, Siddhesh Aras, Asha R. Kallianpur

Subject: Medicine And Pharmacology, Neuroscience And Neurology Keywords: HIV; antiretroviral drug; combination antiretroviral therapy; mitochondrial dysfunction; human microglia; iron; neural cell; metabolic reprogramming

Online: 21 July 2023 (09:50:45 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202307.1234.v1

Comparison of Efficiency and Side Effects of Daily and Alternate Day Oral Iron

Ibrahim Nahit Sendur, Umit Yavuz Malkan

Subject: Medicine And Pharmacology, Hematology Keywords: Iron deficiency anemia; oral iron; side effects

Online: 18 July 2023 (14:17:18 CEST)

Show abstract| Download PDF| Share

Introduction: In the recent years alternate day dosing has been recommended in iron deficieny treatment. The aim of this study is to compare the efficacy and side effects of oral iron treatments given daily 1x1, alternate day 1x1 and 2x1 alternate day dosing in iron deficieny anemia patients. Methods: A total of 52 patients with a diagnosis of iron deficiency anemia with serum ferritin level of 25 µg/L or less were included in this retrospective study. Statistical analyzes were done with SPSS V.25. Results: The patients included in our study were between the ages of 18-51. All of the patients included in the study were female. A statistically significant increase was found between 0-14 days(p<0.001), 14-28 days(p<0.001) and 0-28 days(p<0.001) hemoglobin values in all patients. There was no statistically significant difference between 0-14 days (p=0.397) and 0-28 days(p=0.310) ferritin values in all patients. A statistically significant difference was found between 14-28 days(p<0.001) ferritin values. When the rate of change of hemoglobin and ferritin values between the groups was compared and no statistically significant difference was observed between the groups. The rate of change of ferritin values for 14-28 days was significant (p=0.012). There was no significant difference in the frequency of symptoms in the 14th day and 28th day controls for each group (p>0.05). The incidence of metallic taste and bloating symptoms was found to be statistically significant in the third control in the group with 2x1 drug use alternate day (p=0.094). Discussion: The only difference in efficacy was observed in ferritin values between 14th and 28th days. The increase in ferritin values was higher in the group that used 1x1 oral iron every day. However, since no difference was observed between the groups in terms of ferritin and hemoglobin values on days 0 and 28, all three groups were considered equally efficient. Side effects were mainly gastrointestinal side effects. Since the group that received 2x1 oral treatment alternate day had a statistically significantly higher rate of side effects, the patients’ treatment tolerance will be lower compared to the other groups. In conlusion, there is no difference in efficacy and side effects between the patient groups receiving 1x1 daily and 1x1 alternate day oral iron therapy, so 1x1 use alternate day is the most appropriate treatment method for oral iron therapy in terms of patient tolerance, adherence to treatment and pharmacoeconomics.

Preprint REVIEW | doi:10.20944/preprints202307.1140.v1

Key Nutrients for Optimal Blood Glucose Control and Mental Health in Individuals With Diabetes: A Review of the Evidence

Raedeh Basiri, Blessing Seidu, Lawrence J. Cheskin

Subject: Medicine And Pharmacology, Dietetics And Nutrition Keywords: Diabetes; mental health; anxiety; depression; supplementation; nutrients; blood glucose; nutrition; omega-3 fatty acids; vitamin D; vitamin E; vitamin B6; vitamin B12; folate; selenium; chromium; iron; magnesium

Online: 18 July 2023 (09:10:50 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202307.0932.v1

Antibacterial and Antifungal Properties of Polyester and PLA Nonwovens (And PES and Cotton Fabrics), Functionalized with Aquous Dispersions Containing Copper Silicate, Titanium Dioxide, Zinc Oxide, or Hybrid Composite Oxide ZnO∙SiO₂

Jerzy J. Chruściel, Joanna Olczyk, Marcin H. Kudzin, Piotr Kaczmarek, Paulina Król, Natalia Tarzyńska

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: antimicrobial modification of textile materials; antibacterial and antifungal properties; biofunctionalization; polyester; poly(lactic acid) (PLA); nonwovens; PES and cotton fabrics; copper silicate hydrate; CuSiO3; titanium dioxide; TiO2; zinc oxide; hybrid composite oxide ZnO∙SiO2

Online: 14 July 2023 (03:03:01 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202307.0915.v1

Synthesis of Iron Oxides and Influence on Final Sizes and Distribution in Bacterial Cellulose Applications

Thaís Cavalcante Souza, Andréa Fernanda Santana Costa, Glória Maria Vinhas, Leonie Asfora Sarubbo

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: Iron oxides; Synthesis; SPIONs; magnetism; bacterial cellulose; new materials

Online: 13 July 2023 (10:52:50 CEST)

Show abstract| Download PDF| Share

Iron oxide nanoparticles have been investigated due to their suitable characteristics for diverse applications in the fields of biomedicine, electronics, water/wastewater treatment and sensors. Maghemite, magnetite and hematite are the most widely studied iron oxide particles and have ferrimagnetic characteristics. When very small, however, these particles have superparamagnetic properties and are called superparamagnetic iron oxide nanoparticles (SPIONs). Several methods are used for the production of these particles, such as coprecipitation, thermal decomposition and microemulsion. However, the variables of the different types of synthesis must be assessed to achieve greater control over the particles produced. In some studies, it is possible to compare the influence of variations in the factors for production with each of these methods. Thus, researchers use different adaptations of synthesis based on each objective and type of application. With coprecipitation, it is possible to obtain smaller, more uniform particles with adjustments in temperature, pH and the types of reagents used in the process. With thermal decomposition, greater control is needed over time, temperature as well as the proportion of surfactants and organic and aqueous phases in order to produce smaller particles and a narrower size distribution. With the microemulsion process, the control of the confinement of the micelles formed during synthesis through the proportions of surfactant and oil makes the final particles smaller and less dispersed. These nanoparticles can be used as additives for the creation of new materials, such as magnetic bacterial cellulose, which has different innovative applications. Composites that have SPIONs, which are produced with greater rigour with regards to size and distribution, have superparamagnetic properties and can be used in medical applications, whereas materials containing larger particles have ferromagnetic applications. To arrive at a particular particle with specific characteristics, researchers must be attentive to both the mechanism selected and the production variables to ensure greater quality and control of the materials produced.

Preprint ARTICLE | doi:10.20944/preprints202307.0801.v1

Pressing and Sintering of Titanium Aluminide Powder after Ball Milling in Silane-Doped Atmosphere

Bernd-Arno Behrens, Kai Brunotte, Julius Peddinghaus, Jonathan Ursinus, Sebastian Döring, Wolfgang Maus-Friedrichs, René Gustus, Maik Szafarska

Subject: Engineering, Mechanical Engineering Keywords: Die pressing and sintering; powder metallurgical process; titanium aluminide powder

Online: 12 July 2023 (21:26:27 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202307.0784.v1

Pseudomonas PA14H7: Identification of 7-Hydroxytropolone Iron Complex as a Potential Antagonist against Dickeya, the Causal Agent of Blackleg on Potato Plant

Euphrasie Munier-Lépinay, David Mathiron, Anthony Quéro, Mounia Khelifa, Sylvain Laclef, Serge Pilard

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: 7-hydroxytropolone; iron-complex; Pseudomonas; Dickeya; Pectobacteriaceae; Biocontrol; Blackleg; Soft Rot; Potato

Online: 12 July 2023 (07:49:33 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202307.0681.v1

Tribological Investigation of the Effect of Nano-Sized Transition Metal Oxides on a Base Oil Containing Overbased Calcium Sulfonate

Álmos Dávid Tóth, Hajnalka Hargitai, Ádám István Szabó

Subject: Engineering, Automotive Engineering Keywords: lubricant; tribology; nanoparticle; detergent; cupric oxide, titanium dioxide, yttrium oxide; engine oil

Online: 11 July 2023 (07:10:53 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202307.0665.v1

Effects of Surface Treatment Method Forming New Nano/Micro Hierarchical Structures on Attachment and Proliferation of Osteoblast-like Cells

Jae-Seung Im, Hyunsuk Choi, Hyun-Wook An, Tae Yub Kwon, Min-Ho Hong

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: surface treatment; titanium; hierarchical structures; dental implant

Online: 11 July 2023 (05:25:10 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202307.0626.v1

Characterization and Efficacy of Titanium Dioxide Nano-Formulation on Skin Microflora Reduction and Wound Healing in Animals

Noppason Pangprasit, Yada Thammawong, Alongkorn Kulsirorat, Phongsakorn Chuammitri, Aphisek Kongkaew, Montira Intanon, Witaya Suriyasathaporn, Surachai Pikulkaew, Wasana Chaisri

Subject: Medicine And Pharmacology, Veterinary Medicine Keywords: Animal wound; Anti-biofilm forming; Antimicrobial activities; Skin microflora; Titanium dioxide

Online: 11 July 2023 (03:08:32 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202307.0138.v1

Approaching High-Performance TS-1 Zeolites in the Presence of Alkali Metal Ions via Combination of Adjusting pH Value and Modulating Crystal Size

Geng Li, Kairui Fu, Fulin Xu, Tianduo Li, Yunan Wang, Jingui Wang

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: Zeolites; TS-1; Inorganic alkali; Titanium; Lewis acid; Oxidation

Online: 4 July 2023 (08:13:46 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202306.1942.v1

Insights into Hepatocellular Carcinoma in Patients with Thalassemia: From Pathophysiology to Novel Therapies

Pei-Chin Lin, Wan-Yi Hsu, Po-Yi Lee, Shih-Hsien Hsu, Shyh-Shin Chiou

Subject: Medicine And Pharmacology, Hematology Keywords: Hepatocellular carcinoma (HCC); Thalassemia; Iron; Transfusion-Dependent Thalassemia (TDT); Non-Transfusion-Dependent Thalassemia (NTDT); Reactive Oxygen Species (ROS)

Online: 28 June 2023 (03:55:10 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.1680.v1

Study on the Influence Law of Ce on Microstructure and High Temperature Oxidation Resistance of Ti-Al-Si Composite Coating

Siqi Zeng, Faguo Li

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: Ti-Al-Si composite coating; titanium alloy; Ce; resistance to high temperature oxidation

Online: 23 June 2023 (12:25:20 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.1678.v1

Study on Effect of Carburizing on Microstructure and High Temperature Oxidation Properties of Hot Dip Aluminum Coating on Titanium Alloy

Wenying Yang, Faguo Li

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: titanium alloy; Ti-Al alloy phase layer/Ti-Al carburizing composite coating; hot dip aluminization; carburizing; thermal exposure test

Online: 23 June 2023 (12:20:43 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.1525.v1

Comparison of Disk Diffusion, E-Test, and Broth Microdilution Methods for Testing In Vitro Activity of Cefiderocol Against Carbapenem-Resistant Acinetobacter Baumannii

Natalia Kolesnik-Goldmann, Helena M. B. Seth-Smith, Haldimann Klara, Frank Imkamp, Tim Roloff, Reinhard Zbinden, Sven N Hobbie, Adrian Egli, Stefano Mancini

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: cefiderocol; A. baumannii; disk diffusion; broth microdilution; E-test; iron-depletion

Online: 21 June 2023 (10:20:03 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202306.1377.v1

Serum Level of Ceruloplasmin, Angiotensin Converting Enzyme and Transferin as Markers of Severity in SARS-Cov-2 Infection in Patients With Type 2 Diabetes

Patricia Restea, Ștefan Țigan, Laura Grațiela Vicaș, Luminita Fritea, Eleonora Marian, Tünde Jurca, Annamaria Pallag, Iulius Liviu Mureșan, Corina Moisa, Otilia Micle, Mariana Muresan

Subject: Public Health And Healthcare, Public Health And Health Services Keywords: ceruloplasmin; Angiotensin Converting Enzyme; IL-6, transferrin; COVID-19; type 2 diabetes; SARS-CoV-2; serum iron

Online: 19 June 2023 (16:29:47 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.1311.v1

A Study on the High-Temperature Molten Salt Corrosion Resistance of Hot-Dip Aluminum/Carburizing Composite Coating on Ti65 Titanium Alloy

Jiayi Wang, Faguo Li

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: titanium alloy; hot-dip aluminum/carburizing composite coating; hot dip aluminum coating; molten salt corrosion

Online: 19 June 2023 (07:17:13 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202306.1113.v1

Inflammatory Bowel Disease-Associated Colorectal Cancer: Translational and Transformational Risks from Exogenous Free Hemoglobin Alpha Chain: A By-product of Extravasated Erythrocyte Macrophage Erythrophagocytosis

Maya A Bragg, William A Breaux, Amosy E M'Koma

Subject: Medicine And Pharmacology, Pathology And Pathobiology Keywords: Inflammatory bowel disease; Colitis-associated colorectal cancer; exogenous frees hemoglobin alpha chain; Fenton reaction; DNA damage; haptoglobin; deferoxamine; flavonoids; hydrogen peroxide; hygiene; iron; nanomedicine; oxidative stress; polyphenol; pharmaceutical therapy

Online: 16 June 2023 (07:11:38 CEST)

Show abstract| Download PDF| Share

The aggregate aftermath of persistent inflammation in patients with inflammatory bowel disease (IBD) places them at increased risk for the advancement to colitis-associated colorectal cancer (CACRC). CACRC is preceded by IBD, the highly heterogenous, pharmacologically incurable, pertinacious, reverting/worsening, and immune-mediated inflammatory pathologies of the colon and rectum. The molecular and immunological basis of CACRC is highly correlated with the length/duration and stringency/severity of colon inflammation predisposed by the exogenous/free hemoglobin alpha chain (HbαC) the byproduct of infiltrating immune cells, extravasated erythrocytes, and macrophage erythrophagocytosis. The exogenous free HbαC prompts oxygen-free radical-arbitrated DNA damage (DNAD) through increased cellular reactive oxygen species (ROS) exacerbated by decreased tissue antioxidant defenses. Mitigation of Fenton reaction via pharmaceutical therapy would attenuate the ROS, promote apoptosis, DNAD repair, and subsequent prevent the incidence of CACRC. Three pharmaceutical options that attenuate hemoglobin toxicity include haptoglobin, deferoxamine, and flavonoids (vitamins C/E). Haptoglobin’s clearance rare from plasma is inversely correlated with its size; the smaller the size, the faster the clearance. Thus, the administration of Hp1-1 may prove to be beneficial. Furthermore, deferoxamine’s hydrophilic structure limits its ability to cross cell membranes. Thus, it may be beneficial if administered intracellularly to avoid the higher plasma concentrations and longer incubation periods associated with extracellular administration. Finally, the effectiveness of flavonoids and natural herb antioxidants is associated with high reactivity of hydroxyl substituents. Multiple analyses are currently underway to assess the clinical context of CACRC and outline the molecular basis of HbαC-induced ROS pathogenesis by exposing colonocytes and/or colonoids to HbαC. These cells are then treated with haptoglobin, deferoxamine (DFO), and flavonoids in order to separate free HbαC and measure their impact on hydroxyl radical formation therapies. The molecular pathogenesis of sporadic colorectal cancer (SCRC) i.e., “inflammation-dysplasia-carcinoma” progression sequence is well described, but the immunopathogenesis of CACRC herein reviewed is broadly still in prodromal stage/phase to be validated and understood. Therefore this timely review outlines the molecular and immunological basis of disease pathogenesis and the pharmaceutical intervention as a protective measure for CACRC.

Preprint ARTICLE | doi:10.20944/preprints202306.1168.v1

Advanced Optimization of Surface Characteristics and Material Removal Rate for Biocompatible TI6Al4V using WEDM Process with BBD and NSGA II

Anbazhagan Nagadeepan, Govindarajalu Jayaprakash, Vagheesan Senthilkumar

Subject: Engineering, Mechanical Engineering Keywords: WEDM; Box-behnken design; NSGA-II; material removal rate; surface roughness; Titanium alloy.

Online: 16 June 2023 (04:25:59 CEST)

Show abstract| Download PDF| Share

Preprint CASE REPORT | doi:10.20944/preprints202306.1051.v1

Pseudovitelliform Maculopathy Associated with Hereditary Hemochromatosis: Two Case Reports

Ante Vukojević, Marija Vukojević, Tomislav Jukić, Igor Petriček, Krešimir Mandić, Nenad Vukojević

Subject: Medicine And Pharmacology, Ophthalmology Keywords: Clinical exome sequencing, C282Y mutation, Hereditary hemochromatosis, HFE gene, Iron overload, Pseudovitelliform maculopathy

Online: 14 June 2023 (13:47:40 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.1043.v1

Effects of Stimulating Materials Addition on Methane Production from Brewer’s Spent Grain in Anaerobic Digestion Process

Ewa Syguła, Waheed A. Rasaq, Kacper Świechowski

Subject: Engineering, Other Keywords: brewers’ spent grain; biomethane production kinetics; methane fermentation; biogas; anaerobic digestion; iron powder; Fe; lime; Ca(OH)2; porous ceramic.

Online: 14 June 2023 (10:13:34 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.0928.v1

Iron-containing Nickel Cobalt Sulfides, Selenides and a Sulfoselenide as Active and Stable Electrocatalysts for the Oxygen Evolution Reaction in Alkaline Solution

Soheil Abdpour, Lars Rademacher, Marcus. N. A. Fetzer, Thi Hai Yen Beglau, Christoph Janiak

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: Iron-containing material; Nickel cobalt sulfide; Nickel cobald selenide; Sulfoselenide; Oxygen evolution reaction (OER)

Online: 13 June 2023 (10:56:28 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint COMMUNICATION | doi:10.20944/preprints202306.0701.v1

Nf-κβ Inhibitor – Dehydroxymethylepoxyquinomicin Reduces Iron Iso-Maltoside Toxicity Towards Peritoneal Mesothelial Cells

Andrzej Breborowicz, Kazuo Umezawa

Subject: Medicine And Pharmacology, Urology And Nephrology Keywords: Iron isomaltoside; NF-kappaBeta; dehydroxymethyepoxyquinmicin (DHMEQ); mesothelial cells

Online: 9 June 2023 (10:37:47 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.0624.v1

Oxidation Effects on Short-Term Creep Response in Air of Commercially Pure Titanium (CP-2 Ti)

Stefano Spigarelli, Michael Regev, Alberto Santoni

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: creep; oxidation; titanium; constitutive equations

Online: 8 June 2023 (10:18:37 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.0502.v1

Total Bio-Based Material To Fight Cancer Through Antimicrobial Activity

Vincenzo Patamia, Chiara Zagni, Roberto Fiorenza, Sandro Dattilo, Paolo Maria Riccobene, Giuseppe Floresta, Antonio Rescifina

Subject: Chemistry And Materials Science, Biomaterials Keywords: resveratrol; curcumin; halloysite nanotubes; kojic acid; iron chelation, antibacterial.

Online: 7 June 2023 (07:15:16 CEST)

Show abstract| Download PDF| Share

Nowadays, there is evidence that bacteria can contribute to cancer formation and interfere with therapy by mediating its carcinogenesis and related infection. Moreover, it is acknowledged that microbial infections and antibiotic resistance represent severe economic and health risks to society. These facts have led to the developing of several new techniques for impeding crucial biological processes in microbial cells. One of these techniques centers on using metal-chelating agents, which can disrupt the microorganism's vital metal metabolism by obstructing metal uptake and bioavailability for critical reactions. Additionally, nanotechnology has made a wide range of nanomaterials available for possible uses in the antibacterial industry. This complex field is shaped by antimicrobial nanoparticles, also investigated as therapeutic and drug-delivery tools. Halloysite nanotubes (HNTs) are naturally occurring tubular clay nanomaterials consisting of aluminosilicate kaolin sheets rolled up several times. The aluminon and siloxane groups on the surface of HNTs facilitate the formation of hydrogen bonds with biomaterials on their surface. These properties make HNTs crucial in a wide range of applications, such as in environmental sciences, wastewater treatment, dye removal, nanoelectronics and nanocomposite fabrication, catalytic studies, coatings for glass or anti-corrosive coatings, cosmetics, flame retardants, stimulus-response, and in forensic sciences. This work aimed to produce an antibacterial material by combining the properties of halloysite nanotubes with the ability of kojic acid to chelate iron. Starting from kojic acid, a simple nucleophilic substitution involving the hydroxyl groups on the surface of the nanotubes was performed. The obtained material was characterized by IR and SEM, and its ability to chelate iron was evaluated. Finally, the capacity to load drugs such as resveratrol and curcumin was also evaluated by UV analysis. In this way, a new bio-based material that can be used as a drug carrier and antimicrobial was produced.

Preprint ARTICLE | doi:10.20944/preprints202306.0500.v1

Thymol@activated Carbon Nanohybrid for Low-Density Polyeth-Ylene Based Active Packaging Films for Pork Fillets Shelf-Life Extension

Aris E. Giannakas, Vassilios K. Karabagias, Dimitrios Moschovas, Areti Leontiou, Ioannis K. Karabagias, Stavros Georgopoulos, Andreas Karydis-Messinis, Konstantinos Zaharioudakis, Nikolaos Andritsos, George Kehayias, Apostolos Avgeropoulos, Charalampos Proestos, Constantinos Ε Salmas

Subject: Chemistry And Materials Science, Nanotechnology Keywords: activated carbon; thymol; low-density polyethylene; active packaging; control release; kinetics; pork fillets; heme iron; shelf life

Online: 7 June 2023 (07:09:07 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202306.0429.v1

Preliminary TC Calculations for Iron-Based Superconductivity in NaFeAs, LiFeAs, FeSe and Nanostructured FeSe/SrTiO₃ Superconductors

Chi Ho Wong, Rolf Lortz

Subject: Chemistry And Materials Science, Other Keywords: Iron-based Superconductivity

Online: 6 June 2023 (09:43:32 CEST)

Show abstract| Download PDF| Share

Many theoretical models of iron-based superconductors have been proposed but Tc calculations based on the models are usually missing. We have chosen two models of iron-based superconductors in the literature and then compute the Tc values accordingly: Recently two models have been announced which suggest that superconducting electron concentration involved in the pairing mechanism of iron-based superconductors may have been underestimated, and that the antiferromagnetism and the induced xy potential may even have a dramatic amplification effect on electron-phonon coupling. We use bulk FeSe, LiFeAs and NaFeAs data to calculate the Tc based on these models and test if the combined model can predict the superconducting transition temperature (Tc) of the nanostructured FeSe monolayer well. To substantiate the recently announced xy potential in the literature, we create a two-channel model to separately superimpose the dynamics of the electron in the upper and lower tetrahedral plane. The results of our two-channel model support the literature data. While scientists are still searching for a universal DFT functional that can describe the pairing mechanism of all iron-based superconductors, we base on the ARPES data to propose an empirical combination of DFT functional for revising the electron-phonon scattering matrix in the superconducting state, which ensures that all electrons involved in iron-based superconductivity are included in the computation. Our computational model takes into account this amplifying effect of antiferromagnetism and the correction of the electron-phonon scattering matrix together with the abnormal soft out-of-plane lattice vibration of the layered structure, which allows us to calculate theoretical Tc values of LiFeAs, NaFeAs and FeSe as a function of pressure that correspond reasonably well to the experimental values. More importantly, by taking into account the interfacial effect between an FeSe monolayer and its SrTiO3 substrate as an additional gain factor, our calculated Tc value is up to 91 K high, and provides evidence that the strong Tc enhancement recently observed in such monolayers with Tc reaching 100 K may be contributed from the electrons within the ARPES range.

Preprint REVIEW | doi:10.20944/preprints202306.0408.v1

Engineering Heterogeneous Nucleation During Solidification of Multiphase Cast Alloys: An Overview

Simon N. Lekakh, Jingjing Qing

Subject: Engineering, Metallurgy And Metallurgical Engineering Keywords: heterogeneous nucleation 1; solidification 2; structure modification 3; cast alloys 4; cast iron with spheroidal graphite 5; alloys with primary crystalline phase 6

Online: 6 June 2023 (08:12:50 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202306.0392.v1

Review of Single Crystal Synthesis of 11 Iron-Based Superconductors

Qiang Hou, Longfei Sun, Yue Sun, Zhixiang Shi

Subject: Physical Sciences, Condensed Matter Physics Keywords: single crystal; hydrothermal; CVT; self-flux; annealing; 11 iron-based superconductors; superconductivity

Online: 6 June 2023 (07:11:59 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.0371.v1

Enhanced Electromagnetic Wave Absorption Properties of FeCo-C Alloy by Exploiting Metamaterial Structure

Tang Xuan Duong, Do Khanh Tung, Bui Xuan Khuyen, Nguyen Thi Ngoc Anh, Bui Son Tung, Vu Dinh Lam, Liangyao Chen, Haiyu Zheng, YoungPak Lee

Subject: Chemistry And Materials Science, Electronic, Optical And Magnetic Materials Keywords: metamaterials; broad-band absorption; iron-cobalt alloy; electromagnetic coupling

Online: 6 June 2023 (03:56:25 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202306.0213.v1

Understanding the Intricacies of Iron Overload Associated With β-Thalassemia: A Comprehensive Review

Subhangi Basu, Motiur Rahaman, Tuphan Kanti Dolai, Praphulla Chandra Shukla, Nishant Chakravorty

Subject: Medicine And Pharmacology, Hematology Keywords: β-thalassemia; iron overload; iron chelators; TDT; NTDT

Online: 2 June 2023 (14:27:31 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.0132.v1

Synthesis of Ti-Ni and Zr-Ni Core-Shell Particles Using Galvanic Replacement

Alexander F. Dresvyannikov, Leonid E. Kalugin, Ekaterina V. Petrova

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: dispersed titanium and zirconium; mechanical mixture; galvanic replacement; metal systems Ti-Ni and Zr-Ni; core-shell structure, precursors of intermetallics

Online: 2 June 2023 (05:01:36 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.2069.v1

Antioxidants Prevent Iron Accumulation and Lipid Peroxidation, but do not Correct Autophagy Dysfunction or Mitochondrial Bioenergetics in Cellular Models of BPAN

Alejandra Suárez-Carrillo, Mónica Álvarez-Córdoba, Ana Romero-González, Marta Talaverón-Rey, Suleva Povea-Cabello, Paula Cilleros-Holgado, Rocío Piñero-Pérez, Diana Reche-López, David Gómez-Fernández, José M. Romero-Domínguez, Manuel Munuera-Cabeza, Antonio Díaz, Susana Gonzalez-Granero, José M. García-Verdugo, And José A. Sánchez-Alcázar

Subject: Biology And Life Sciences, Neuroscience And Neurology Keywords: BPAN; WDR45; antioxidants; autophagy; iron accumulation

Online: 31 May 2023 (03:32:17 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202305.2018.v1

Tribocorrosion Behaviour of γ’-Fe4N Nitride Layer Formed on Mild Steel by Plasma Nitriding in Chloride Containing Solution

Yong Sun, Richard Bailey

Subject: Engineering, Mechanical Engineering Keywords: nitriding; iron nitride; wear; corrosion; tribocorrosion; mild steel

Online: 29 May 2023 (13:51:50 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202305.1989.v1

Safety of Iron Chelation Therapies in Kidney Disease

Timothy Nguyen, Zhe Amy Wang

Subject: Medicine And Pharmacology, Medicine And Pharmacology Keywords: Iron chelation; Iron overload; kidney disease; deferoxamine; deferasirox; deferiprone

Online: 29 May 2023 (07:26:02 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1978.v1

Synthesis and Characterization of Iron Bispyridine Bisdicyanamide, Fe[C₅H₅N]₂[N(CN)₂]₂

Laura Henrich, Peter C Müller, Jan Hempelmann, Markus Mann, Jan Van Leusen, Simon Steinberg, Richard Dronskowski

Subject: Chemistry And Materials Science, Inorganic And Nuclear Chemistry Keywords: crystal structure; iron; pyridine; dicyanamide; quantum chemistry; magnetism

Online: 29 May 2023 (05:29:43 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1964.v1

Rapid Prototyping of 3D Printed AgNPs and Nano-TiO₂ Embedded Hydrogels as Novel Devices with Multi-Responsive Antimicrobial Capability in Wound Healing

Giulia Remaggi, Laura Bergamonti, Claudia Graiff, Maria Cristina Ossiprandi, Lisa Elviri

Subject: Biology And Life Sciences, Life Sciences Keywords: 3D printing; silver nanoparticles; titanium dioxide; hydrogels; antimicrobial activity

Online: 29 May 2023 (04:41:53 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.1171.v2

Particulate Matter as One of Air Pollutants Impacts Asthma via the Tricellular Tight Junction Protein, LSR

Da Yeon Hwang, Min-Hyeok An, Pureun-Haneul Lee, Jung-Hyun Kim, Yunha Nam, Shinhee Park, Ae-Rin Baek, An-Soo Jang

Subject: Biology And Life Sciences, Immunology And Microbiology Keywords: Tricellular tight junction protein; LSR; RAGE; Bronchial asthma; Titanium dioxide

Online: 25 May 2023 (09:30:03 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1739.v1

Spatiotemporal Variability in Soil Properties and Composition in Mangrove Forests in Baía de Todos os Santos (NE Brazil)

Mônica Arlinda Vasconcelos Ramos, Augusto Pérez-Alberti, Gabriel Nuto Nóbrega, Xosé Luis Otero

Subject: Environmental And Earth Sciences, Soil Science Keywords: Soil geochemistry pyrites; iron partitioning

Online: 25 May 2023 (05:24:51 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1676.v1

Montane Ecoclines as Social Aggregation Zones in Ancient Central Asia: Agropastoral economies in Jukuu, Kyrgyzstan

Claudia Chang, Sergei S. Ivanov, Robert N. Spengler III, Basira Mir-Makhamad, Perry Alan Tourtellotte

Subject: Environmental And Earth Sciences, Ecology Keywords: Agropastoralism; Central Asia; Archaeology; Archaeobotany; Turkic burial mound; Iron Age settlement; Ecotones; Mountainous ecoclines

Online: 24 May 2023 (03:17:20 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202204.0132.v2

Sentinel Lymph Node in Breast Cancer: An Innovative Technique Innovation in Breast Cancer

Paolo Izzo, Claudia De Intinis, Simone Sibio, Luigi Basso, Andrea Polistena, Gabriele Raimondo, Massimo Codacci-Pisanelli, Luciano Izzo, Sara Izzo

Subject: Medicine And Pharmacology, Oncology And Oncogenics Keywords: SLNB; SPIO; ALND; LS; superparamagnetic iron oxide nanoparticles

Online: 23 May 2023 (05:26:30 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.1280.v1

In Vivo Bone Progression in and around Lattice Implants Additively Manufactured with a New Titanium Alloy

Anne-Françoise Obaton, Jacques Fain, Dietmar Meinel, Athanasios Tsamos, Fabien Léonard, Benoît Lecuelle, Madjid Djemaï

Subject: Physical Sciences, Applied Physics Keywords: osseointegration; animal surgery; implants; lattices; titanium alloy; additive manufacturing (AM); X-ray computed tomography (XCT).

Online: 18 May 2023 (05:43:56 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.0942.v1

Intrinsic Coherence Length Anisotropy in Nickelates, and Some Pnictides and Chalcogenides Superconductors

Evgeny F. Talantsev

Subject: Physical Sciences, Condensed Matter Physics Keywords: nickelate superconductors; iron-based supercondcutors; superconducting coherence length; anisotropy of characteristic length in supercondcutors

Online: 12 May 2023 (11:37:48 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.0903.v1

Modeling of Sulfur and Iron Dynamics in Enclosed Bay Sediments and Evaluation of the Suppression Effect on Sulfides Release by Iron

Fumika Mochida, Takashi Miyatsuji, Yoshiyuki Nakamura, Tetsunori Inoue

Subject: Engineering, Civil Engineering Keywords: sediment model; sulfur and iron cycles; semi-enclosed bay

Online: 12 May 2023 (08:11:39 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.0709.v1

Enhanced Alkaline Hydrogen Evolution on Gd1.0/Ndx (X = 0.5, 1.0, 3.0, and 6.0%)-Doped TiO₂ Bimetallic Electrocatalysts

Mohammed Alsawat, Naif Ahmed Alshehri, Abdallah A. Shaltout, Sameh I Ahmed, Hanan M. O. Al-Malki, Rabah Boukherroub, Mohammed A Amin, Mohamed M Ibrahim

Subject: Chemistry And Materials Science, Electrochemistry Keywords: Titanium dioxide; Rare earth-doped TiO2 nanoparticles; Electrochemical Hydrogen generation; Alkaline

Online: 10 May 2023 (08:23:46 CEST)

Show abstract| Download PDF| Supplementary Files| Share

The work reports a facile synthesis of high thermally-stable nanocrystalline anatase TiO2 nanoparticles (NPs) doped with different atomic concentrations (0.5, 1.0, 3.0, and 6.0%) of Gd3+ and Nd3+ ions by a template-free and one-step solvothermal process, using titanium(IV) butoxide as titanium precursor and dimethyl sulfoxide (DMSO) as solvent. The structure and morphology of the Gd3+, Nd3+, and 0.5%Gd3+-0.5%Nd3+/doped TiO2 NPs have been characterized by using various analytical techniques. The Gd3+/ and Nd3+/TiO2 molar ratios were found to have a pronounced impact on the crystalline structure, size, and morphology of TiO2 NPs. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) studies revealed the proper substitution of Ti4+ by Gd3+ and Nd3+ ions in the TiO2 host lattice. The as-prepared Gdx/TiO2, Ndx/TiO2, and Gd1.0/Ndx/TiO2 bimetallic NPs, x = 0.5, 1.0, 3.0, and 6%, have been investigated as electrocatalysts for hydrogen evolution reaction (HER) in 1.0 M KOH solution using a variety of electrochemical techniques. At any doping percentage, the Gd1.0/Ndx/TiO2 bimetallic NPs showed higher HER catalytic performance than their corresponding counterparts i.e. Gdx/TiO2 and Ndx/TiO2. Upon increasing the Nd content from 0.5 to 6.0%, the HER catalytic performance of the Gd1.0/Ndx/TiO2 bimetallic NPs was generally enhanced. Among the studied materials, the bimetallic Gd1.0/Nd6.0/TiO2 NPs emerged as the most promising catalyst with an onset potential of -22 mV vs. RHE, a Tafel slope of 109 mV dec-1, and an exchange current density of 0.72 mA cm-2. Such HER electrochemical kinetic parameters are close to those recorded by the commercial Pt/C (onset potential: -15 mV, Tafel slope: 106 mV dec-1, and exchange current density: 0.80 mA cm-2), and also comparable with those measured by the most active electrocatalysts reported in the literature. The synergistic interaction of Gd and Nd is thought to be the major cause of the bimetallic catalyst's activity.

Preprint ARTICLE | doi:10.20944/preprints202305.0614.v1

The Effect of Boron (B) on the Microstructure and Graphite Morphology of Spheroidal Graphite Cast Iron

Jin-Su Ha, Ji-Woo Hong, Ji-Wook Kim, Soo-Bin Han, Chang-Young Choi, Hye-Jin Song, Jin-Seok Jang, Dong-Yul Kim, Dae-Cheol Ko, Seong-Hoon Yi, Yong-Jae Cho

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: Spheroidal graphite Cast Iron; Boron; Pearlite; Mechanical properties; Microstructure

Online: 9 May 2023 (08:46:37 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.0444.v1

Recovery Quality Index as a Tool for Monitoring the Mined Land Reclamation

Maísa Quintiliano Alves, Igor Rodrigues de Assis, Júlio César Lima Neves, Fernanda Zeidan Oliveira, Amanda Abreu Anunciação, Sandro Lucio Silva Moreira, Ryan D. Stewart

Subject: Environmental And Earth Sciences, Soil Science Keywords: soil indicators; vegetation indicators; iron mining; ecological restoration

Online: 8 May 2023 (04:45:53 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Many ecosystems are being severely degraded, leading the United Nations to deem 2021-2030 as the Decade on Ecosystem Restoration. To be successful, this effort requires robust monitoring tools to assess land reclamation practices. Our study aimed to evaluate the quality of recovery efforts in mined areas by developing a Recovery Quality Index (RQI) based on soil and vegetation indicators. Using the heavily mined Iron Quadrangle region of Brazil as an example, we selected four local, undisturbed reference areas as restoration goals: Atlantic Forest (AF); ferruginous rupestrian grassland with dense vegetation (FRGD); ferruginous rupestrian grassland with sparse vegetation (FRGS); and quartzite rupestrian grassland (QRG). We also selected four areas that were directly or indirectly affected by mining, including an environmental compensation area set aside 5 years prior to the study (COMP-5), two sterile piles that had undergone recovery for 15 and 20 years (SP-20 and SP-15), and a cave area with 15 years of recovery (CAVE-15). The four recovery areas were grouped together with each individual reference area (making four combinations of sites), and measurements of 2 vegetation parameters and 34 soil attributes were used in a Principal Component Analysis (PCA) for each grouping. We determined the RQI for each group by summing weighted PCA scores for responsive indicators. Vegetative parameters had the lowest RQI weights in all four groups. Soil physical indicators tended to be the most important, except in AF, where chemical indicators were most relevant. RQI values were also lowest when AF was used as the reference, showing that the forest was a unique ecosystem, and the CAVE-15 site had lower RQI scores than the other restored sites, indicating the high degree of disturbance that occurred in that low-lying area. The SP-20 site tended to have higher RQI values than the SP-15, and similar values to the less disturbed COMP-5 areas, potentially indicating greater recovery of native soil properties during the longer recovery period. This RQI-based approach has excellent potential for robust assessment of the recovery of areas degraded by mining and can support decision-making during monitoring.

Preprint ARTICLE | doi:10.20944/preprints202305.0267.v1

Investigation of Electrochromic, Combinatorial TiO₂-SnO₂ Mixed Layers by Spectroscopic Ellipsometry using Different Optical Models

Noor Taha Ismaeel, Zoltán Lábadi, Peter Petrik, Miklós Fried

Subject: Physical Sciences, Condensed Matter Physics Keywords: Titanium-Tin Oxide; reactive sputtering; spectroscopic ellipsometry; electrochromic materials

Online: 4 May 2023 (12:59:09 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202305.0183.v1

Effects of Green Tea Polyphenols on Inflammation and Iron Status

Mary Jorgenson, Sixtus Aguree, Kevin L Schalinske, Manju Reddy

Subject: Medicine And Pharmacology, Dietetics And Nutrition Keywords: Iron; inflammation; EGCG; hepcidin

Online: 4 May 2023 (04:14:52 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202304.1006.v1

Laser Cavitation Peening: A Review

Hitoshi Soyama, Yuka Iga

Subject: Engineering, Mechanical Engineering Keywords: pulsed laser; cavitation; mechanical surface treatment; cavitation peening; additive manufactured metal; fatigue strength; titanium alloy

Online: 27 April 2023 (02:41:00 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0991.v1

Hydrogenation of CO2 to Valuable C2-C5 Hydrocarbons on Mn-Promoted High Surface Area Iron Catalysts

Trino A. Zepeda, Sandra Aguirre, Yunuen I. Galindo-Ortega, Alfredo Solís-Garcia, Rufino M. Navarro Yerga, Bárbara Pawelec, Juan C. Fierro-Gonzalez, And Sergio Fuentes

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: CO2 hydrogenation; CO2 utilization; light hydrocarbons; manganese-iron catalysts, olefin compounds

Online: 26 April 2023 (12:56:05 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202304.0859.v1

Nutritional Aspects of Iron in Health and Disease

Edouard Charlebois, Kostas Pantopoulos

Subject: Medicine And Pharmacology, Other Keywords: Iron deficiency; iron overload; anemia; heme; metabolic syndrome; cardiovascular disease; cancer; microbiome

Online: 24 April 2023 (12:48:31 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0820.v1

Organic Luminescent Sensor for Mercury(II) and Iron(III) Ions in Aqueous Solutions

Sofian Kanan, Aysha Shabnam, Ahmed A Mohamed, Imad a Abu-Yousef

Subject: Chemistry And Materials Science, Biomaterials Keywords: luminescent sensors; mercury ions; iron ions; binding affinity; selective detection; adsorption capacity

Online: 24 April 2023 (04:29:47 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202304.0811.v1

Grinding Media in Ball Mills-A Review

Nyasha Matsanga, Willie Nheta, Ngonidzashe Chimwani

Subject: Engineering, Mining And Mineral Processing Keywords: Grinding media, ball mill, comminution, Ball size distribution, wear, alloy, cast iron

Online: 24 April 2023 (03:37:13 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0600.v1

Iron Complexes With Antarctic Krill-Derived Peptides Show Su-Perior Effectiveness to Their Original Protein-Iron Complexes in Mice With Iron Deficiency Anemia

Shengjie Hu, Songyi Lin, Qi Feng, Xueqing He, Haowei Xu, Lei Chen, Na Sun

Subject: Biology And Life Sciences, Food Science And Technology Keywords: IDA mice; Antarctic krill peptide-iron; iron-regulated genes; iron bioavailability; in vivo antioxidant capacity

Online: 20 April 2023 (03:15:22 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202304.0550.v1

Synthesis of Ketjenblack Decorated Pillared Ni(Fe) Metal-Organic Frameworks as Precursor Electrocatalysts for Enhancing the Oxygen Evolution Reaction

Thi Hai Yen Beglau, Lars Rademacher, Robert Oestreich, Christoph Janiak

Subject: Chemistry And Materials Science, Electrochemistry Keywords: metal-organic frameworks (MOFs); Ketjenblack; electrocatalysis; oxygen evolution reaction (OER); nickel; iron

Online: 19 April 2023 (05:38:38 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Metal-organic frameworks (MOFs) are investigated for the oxygen evolution reaction (OER) due to their structure diversity, high specific surface area, adjustable pore size and abundant active sites. However, the poor conductivity of most MOFs restricts this application. Herein, through a facile one-step solvothermal method, the Ni-based pillared metal-organic framework [Ni2(BDC)2DABCO] (BDC = 1,4-benzenedicarboxylate, DABCO = 1,4-diazabicyclo[2.2.2]octane), its bimetallic nickel-iron form [Ni(Fe)(BDC)2DABCO] and their modified Ketjenblack (mKB) composites were synthesized and tested towards OER in an alkaline medium (KOH 1 mol L–1). A synergistic effect of the bimetallic nickel-iron MOF and the conductive mKB additive enhance the catalytic activity of the MOF/mKB composites. All MOF/mKB composite samples (7, 14, 22, 34 wt.% mKB) indicated much higher OER performances than the MOFs and mKB alone. The Ni-MOF/mKB14 composite (14 wt. % of mKB) demonstrated an overpotential of 294 mV at a current density of 10 mA cm–2 and Tafel slope of 32 mV dec–1, which is comparable with commercial RuO2 commonly used as a benchmark material for OER. The catalytic performance of Ni(Fe)MOF/mKB14 (0.57 wt% Fe) was improved further to an overpotential of 279 mV at a current density of 10 mA cm–2. The low Tafel slope of 25 mV dec–1 as well as a low reaction resistance due to electrochemical impedance spectroscopy (EIS) measurement confirm the excellent OER performance of the Ni(Fe)MOF/mKB14 composite. For practical applications, the Ni(Fe)MOF/mKB14 electrocatalyst was impregnated into commercial nickel foam (NF), where overpotentials of 247 and 291 mV at current densities of 10 and 50 mA cm–2, respectively, were realized. The activity was maintained for 30 h at the applied current density of 50 mA cm–2. The electrocatalytic system consisting of earth-abundant Ni and Fe metals only would be attractive for the development of efficient, practical and economical energy conversion materials for efficient OER activity.

Preprint ARTICLE | doi:10.20944/preprints202304.0194.v1

Boron Effect on Microstructure, Superplastic Behavior, and Mechanical Properties of Ti-4Al-3Mo-1V Alloy

Maria N. Postnikova, Anton D. Kotov, Andrey I. Bazlov, Ahmed O. Mosleh, Svetlana V. Medvedeva, Anastasia V. Mikhaylovskaya

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: titanium alloys; superplasticity; TiB; ultrafine-grained structure; thermomechanical treatment; metal matrix composites

Online: 11 April 2023 (05:11:19 CEST)

Show abstract| Download PDF| Share

The microstructure evolution, superplasticity, and room temperature mechanical properties of Ti-4%Al-1%V-3%Mo alloys modified with 0.01-2 wt.% boron were investigated. Increasing the boron content from 0 to 0.1 wt.% effectively refined prior β-grains, reducing a mean grain size from ~700 µm to ~210 µm. Whiskers of the TiB phase with a size in a range of 0.7-2.9 µm were observed after solidification and thermomechanical processing. Alloys with 0.01-0.1 wt.% boron exhibited similar superplastic elongations and strain rate sensitivity coefficient m of 0.4-0.5 at a strain rate of 1×10-3 s-1 and the elongation to failure decreased from 1000% at 875°С to 400-500% at 700°С. Along with this, the minor boron addition effectively decreased flow stress values, especially at 775 °C, that was explained by the acceleration of the recrystallization and globularization of the microstructure at the initial stage of deformation. Recrystallization-induced decrease in yield strength from 770 MPa to 680 MPa was observed with an increase in boron content from 0 to 0.1 wt.%. Heat treatment increased post-forming strength characteristics for the alloys with 0.01-0.1 wt.% boron by 90–140 MPa without ductility reduction. Alloys with 1-2 wt.% B demonstrated the opposite behavior. The grain refinement effect was not revealed, and prior β grain sizes were ~670-750 µm after solidification. Thermomechanical processing promoted the fragmentation of boride whiskers and the formation of near-spherical particles with a size of ~1 μm for the alloy with a eutectic concentration of 2 wt.% B. A high fraction of borides, ~5-11%, in the alloys with 1-2 wt.% B deteriorated the superplastic properties and drastically decreased ductility at room temperature. The alloy with 2 wt.% B demonstrated non-superplastic behavior and a low level of mechanical properties, meanwhile, the alloy with 1% boron exhibited high-temperature superplasticity at 875 °C with elongation of ~500%, and yield strength of 830 MPa, ultimate tensile strength of 1020 MPa at a room temperature after 100% of superplastic deformation.

Preprint ARTICLE | doi:10.20944/preprints202304.0058.v1

Identification of Iron Deficiency Induced Chlorosis Tolerant Lines from Wild Rice Germplasm

Rahul Kumar, Huseyin Yer

Subject: Biology And Life Sciences, Plant Sciences Keywords: Aerobic Rice; Chlorosis; Iron Deficiency; Oryza; Wild Germplasm; IDIC; SPAD

Online: 5 April 2023 (11:34:36 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202303.0519.v1

Spatial-Temporal Distribution Characteristics and Interrelationship of Sulfur and Iron Compounds in Sediments: A Model Study in the Closed-Section of Mikawa Bay, Japan

Mitsuyasu Waku, Ryota Sone, Tetsunori Inoue, Toshiro Ishida, Teruaki Suzuki

Subject: Environmental And Earth Sciences, Water Science And Technology Keywords: dissolved sulfide; iron; hypoxia; buffering capacity; environmental restoration; coastal waters; Mikawa Bay; dead zone

Online: 30 March 2023 (02:58:33 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202303.0150.v1

The Outcome of a Caregiver Potential Support Program on Anemia Prevention Among Children Six Months to Two Years in Thasala District, Nakhon Si Thammarat Province, Thailand

Suphaphorn Saipaen, Kiatkamjorn Kusol, Thidarat Eksirinimit

Subject: Medicine And Pharmacology, Pediatrics, Perinatology And Child Health Keywords: support caregivers’ potential; food consumption; iron supplement; anemia prevention

Online: 8 March 2023 (08:41:09 CET)

Show abstract| Download PDF| Share

Children under two years old are at risk for anemia because young children have an increased need for iron for their physical growth and brain development. The purpose of this study was designed to evaluate the effects of a caregiver potential support program on anemia prevention in children six months to two years old attending the subdistrict health-promoting hospital in Thasala District, Nakhon Si Thammarat Province. This study was quasi-experimental. The sample included children aged six months to two years old and their caregivers, who were selected by random sampling and allocated to either the experimental or control group, with 40 pairs per group. The experimental group received a potential support program, while the control group received regular care. Both groups were followed for 12 weeks. The instruments used were the potential caregiver assessment, children’s anemia assessment, and a program to support the potential of primary caregivers. Descriptive statistics, chi-square, and t-tests were used to analyze the data. The results revealed that 11.4% of the children had anemia, and a hematocrit count of less than 33% (range = 30-40, M = 34.89, SD = 1.97). The mean scores of knowledge about anemia and iron supplementation after using the program in the experimental group and control group were significantly different (p < 0.001). The mean scores of knowledge about anemia in the experimental and control group were 15.75, SD = 0.54, and 13.28, SD = 1.43 respectively. The mean scores of knowledge about iron supplementation in the experimental and control group were 10.75, SD = 0.49, and 8.15, SD = 1.54 respectively. It was found that the experimental group had a higher mean score on food care behaviors than the control group for 6-11 months and 1-2 years, with statistical significance. The experimental group also had a higher mean score of care behaviors concerning children’s consumption of medicine than the control group (M = 58.20, SD = 4.05; M = 45.78, SD = 9.66, respectively), (p < 0.001). The mean score of the hematocrit level for the experimental group was found to be higher than the control group after receiving the program (M = 35.80, SD = 1.55; M = 34.83, SD = 2.14, respectively), (p < 0.05). Therefore, healthcare providers should support caregivers' capacity to provide continued care for children to prevent anemia.

Preprint ARTICLE | doi:10.20944/preprints202302.0467.v1

Iron Deficiency and Polycythemia

Rova Malala Fandresena Randrianarisoa, Herveat Ramanandafy, Alexandre Mania, Hélène Monjanel, Sébastien Trouillier

Subject: Medicine And Pharmacology, Hematology Keywords: Diagnostic; Iron deficiency; Polycythemia; Polycythemia vera; Secondary polycythemia

Online: 27 February 2023 (09:36:45 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0449.v1

Novel Strategy for Surface Modification of Titanium Implants towards the Improvement of Osseointegration Property and Antibiotic Local Delivery

Isabela da Rocha Silva, Aline Tavares da Silva Barreto, Renata Santos Seixas, Paula Nunes Guimarães Paes, Juliana do Nascimento Lunz, Rossana Mara da Silva Moreira Thiré, Paula Mendes Jardim

Subject: Chemistry And Materials Science, Biomaterials Keywords: titanium; hydrothermal treatment; surface modification; local drug delivery system; osseointegration

Online: 27 February 2023 (06:41:55 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0133.v1

Heterostructure, Morphology, and Adherence Evaluation of TiO₂ Film Deposited on Stainless Steel 304 and 316L via Atomic Layer Deposition

Vagner Eduardo Marques, Lucas Augusto Manfroi, Angela Aparecida Vieira, Andre Luis de Jesus Pereira, Francisco das Chagas Marques, Lúcia Vieira

Subject: Engineering, Mechanical Engineering Keywords: Titanium dioxide; Morphology; Adherence; Heterostructure, AISI304; AISI 316L; Atomic Layer Deposition ALD

Online: 7 February 2023 (14:00:27 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202302.0113.v1

Entomopathogenic Fungi-Mediated Solubilization and Induction of Fe related Genes in Melon and Cucumber Plants

Fabián García-Espinoza, Enrique Quesada-Moraga, María José García del Rosal, Meelad Yousef-Yousef

Subject: Biology And Life Sciences, Immunology And Microbiology Keywords: Entomopathogenic fungi; Growth promoters; Nutrient Solubilization; Bioavailability; Iron acquisi-tion genes; ferric reductase activity

Online: 7 February 2023 (02:54:53 CET)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202302.0011.v1

Nutritional Assessment of the Symptomatic Patient on a Plant-Based Diet: Seven Key Questions

Gregory Adams Plotnikoff, Linda Dobberstein, Susan Raatz

Subject: Medicine And Pharmacology, Dietetics And Nutrition Keywords: Plant-based diet; Vegan; Vegetarian; vitamin B12; Iron; Essential fatty acids; Calcium; Zinc; vitamin D; essential amino acids

Online: 1 February 2023 (11:01:32 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202301.0501.v1

Corrosion Resistance of the Welded Joints From the Ultrafine-Grained Near-α Titanium Alloys Ti-5Al-2V Obtained by Spark Plasma Sintering

V. N. Chuvil’deev, A. V. Nokhrin, C. V. Likhnitskii, V. I. Kopylov, P. V. Andreev, M. S. Boldin, N. Yu. Tabachkova, A. I. Malkin

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: titanium alloy; ultrafine-grained microstructure; equal channel angular pressing; spark plasma sintering; diffusion welding; corrosion; hat salt corrosion; diffusion; grain boundary.

Online: 27 January 2023 (10:29:04 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202301.0445.v1

The Cultivation Modality and Barrier Maturity Modulate the Toxicity of Industrial Zinc Oxide and Titanium Dioxide Nanoparticles on Nasal, Buccal, Bronchial, and Alveolar Mucosa Cell-Derived Barrier Models

Helene Stuetz, Eva Ingeborg Reihs, Winfried Neuhaus, Maren Pflueger, Harald Hundsberger, Peter Ertl, Christian Resch, Gerald Bauer, Günter Povoden, Mario Rothbauer

Subject: Biology And Life Sciences, Toxicology Keywords: human mucosa models; nanotoxicology; titanium dioxide; zinc oxide; barrier health; barrier integrity

Online: 25 January 2023 (04:19:16 CET)

Show abstract| Download PDF| Supplementary Files| Share

As common industrial by-products, airborne engineered nanomaterials are considered important environmental toxicants to monitor due to their potential health risks to humans and animals. The main uptake routes of airborne nanoparticles are nasal and/or oral inhalation, which are known to enable the transfer of nanomaterials into the blood stream resulting in rapid distribution in the body. Consequently, mucosal barriers present in nose, buccal and lung have been identified and intensively studied as the key tissue barrier to nanoparticle translocation. Despite decades of research, surprisingly little is known about the differences among various mucosa tissue types to tolerate nanoparticle exposures. One limitation in comparing nanotoxicological data sets can be linked to a lack of harmonization and standardization of cell-based assays, where a) different cultivation conditions such as air-liquid interface or submerged cultures, b) varying barrier maturity and c) diverse media substitutes have been used. The current comparative nanotoxicological study therefore aims at analyzing the toxic effects of nanomaterials on four human mucosa barrier models including nasal (RPMI2650), buccal (TR146), alveolar (A549), and bronchial (Calu-3) mucosal cell lines to better understand the modulating effects of tissue maturity, cultivation conditions and tissue type using standard Transwell cultivations at liquid-liquid and air-liquid interfaces. Overall, cell size, confluency, tight junction localization, and cell viability as well as barrier formation using 50% and 100% confluency was monitored using trans-epithelial-electrical resistance (TEER) measurements and Presto Blue assays of immature (e.g. 5 days) and mature (e.g. 22 days) cultures in the presence and absence of corticosteroids such as hydrocortisone. Results of our study show that cellular responses to increasing nanoparticle exposures are highly cell type specific, where bronchial mucosal cell barriers models cultivated under ALI conditions showed less tolerance to acute ZnO nanoparticle exposures. Additionally, stronger toxicities are found using early mucosa barriers compared to later barrier models being maturated under air-liquid cultivation conditions.

Preprint ARTICLE | doi:10.20944/preprints202301.0143.v1

To Develop an Ecofriendly Cold Nuclear Thermal Power Plant by Considering Iron-56 as A Fuel

Satya Seshavatharam U.V, Lakshminarayana s

Subject: Physical Sciences, Nuclear And High Energy Physics Keywords: Cold nuclear fusion; Iron-56 as a fuel; Eco friendly Thermal energy; Power plant

Online: 9 January 2023 (06:46:39 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202301.0097.v1

Growth Developmental Defects of Mitochondrial Iron Transporter 1 and 2 Mutants in Arabidopsis in Iron Sufficient Conditions

Joaquin Vargas, Isabel Gómez, Elena Vidal, Chun Pong Lee, A. Harvey Millar, Xavier Jordana, Hannetz Roschzttardtz

Subject: Biology And Life Sciences, Plant Sciences Keywords: mitochondria; iron transporters; MIT; developmental defects; RNA-seq

Online: 5 January 2023 (03:42:32 CET)

Show abstract| Download PDF| Supplementary Files| Share

Iron is the most abundant micronutrient in plant mitochondria and it has a crucial role in biochemical reactions involving electron transfer. It has been described in Oryza sativa that Mitochondrial Iron Transporter (MIT) is an essential gene and that knockdown mutant rice plants have a decreased amount of iron in mitochondria, strongly suggesting that OsMIT is involved in mitochondrial iron uptake. In Arabidopsis thaliana, two genes encode MIT homologues. In this study, we analyzed different AtMIT1 and AtMIT2 mutant alleles, confirming that individually AtMIT1 nor AtMIT2 genes are essential. When we generated crosses between Atmit1 and Atmit2 alleles we were able to isolate homozygous double mutant plants. Interestingly, homozygous double mutant plants were obtained only when mutant alleles of Atmit2 with the T-DNA insertion in the intron region were used for crossings, and in these cases a correctly spliced AtMIT2 mRNA was generated, although at a low level. Atmit1 Atmit2 double homozygous mutant plants, which were knockout for AtMIT1 and knockdown for AtMIT2, were grown and chacterised in iron sufficient conditions. Pleiotropic developmental defects were observed including abnormal seeds, increased number of cotyledons, slow growth rate, pinoid stems, defects in flower structures and reduced seed set. We observed a possible phenomenon of T-DNA suppression in the next generation of Atmit1 Atmit2 double homozygous mutant plants, correlating with an increased splicing of the AtMIT2 intron containing the T-DNA. Molecular analysis of gene expression markers for mitochondrial and oxidative stress showed that Atmit1 Atmit2 double homozygous mutant plants express a degree of mitochondrial perturbation. A RNA-Seq study was performed and we could identify more than 760 genes differentially expressed in Atmit1 Atmit2, including genes involved in iron transport, coumarin metabolism, and hormones metabolism, transport and signaling. Our data suggest that some of the phenotypes observed in Atmit1 Atmit2 double homozygous mutant plants are mediated by defects in auxin homeostasis.

Preprint ARTICLE | doi:10.20944/preprints202212.0436.v1

Anti-Bacterial Iron Oxide Magnetic Nanoparticles based on Orange Peel Extract

David Giancarlo García, Cristina Cecibel Garzón-Romero, Mateo Alejandro Salazar, Karina Janneri Lagos, Kleber Orlando Campana, Alexis Debut, Karla Vizuete, Miryan Rosita Rivera, Dario Niebieskikwiat, María José Benítez, María Paulina Romero

Subject: Chemistry And Materials Science, Nanotechnology Keywords: Green synthesis, antibacterial PPT, iron oxide nanoparticles, orange peel extract, cytotoxicity, superparamagnetic behavior.

Online: 23 December 2022 (02:15:06 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202212.0353.v1

Metallurgical Quality of Cast Iron Made from Steel Scrap and Possibilities of its Improvement

Peter Futas, Alena Pribulova, Jozef Petrik, Peter Blasko, Andrea Junakova, Vladimir Sabik

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: synthetic cast iron; charge materials; steel scrap; nitrogen in cast iron iron; mechanical properties

Online: 20 December 2022 (04:05:55 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202212.0179.v1

“Animal-style art,” and special finds at Iron Age settlements in Southeastern Kazakhstan: Commodity Production, Trade, and Pathways during the Iron Age

Claudia Chang, Sergei Sergievich Ivanov

Subject: Arts And Humanities, Archaeology Keywords: zoomorphic art; Saka nomadic tradition; horse and weaponry gear; etched carnelian beads; Iron Age agropastoral settlements; world-systems analysis

Online: 9 December 2022 (10:20:14 CET)

Show abstract| Download PDF| Share

Search Results

365 articles found