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Preprint ARTICLE | doi:10.20944/preprints202303.0404.v1

YCl3-substituted CsPbI3 Perovskite Nanorods for Efficient Red Light-emitting Diodes

Muhammad Imran Saleem, Amarja Katware, Al Amin, Seo-Hee Jung, Jeong-Hwan Lee

Subject: Materials Science, Nanotechnology Keywords: Anisotropic Growth; YCl3-substituted Perovskite; 1D Nanorods; Transition Dipole Moments; Outcoupling Efficiency

Online: 23 March 2023 (01:15:20 CET)

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Preprint SHORT NOTE | doi:10.20944/preprints202303.0403.v1

Thermal Conductivity of Carbides and Nitrides of Zr, Th and U: Numerical Approach

Valeriy Kizka

Subject: Materials Science, General Materials Science Keywords: Zirconium carbide; Zirconium nitride; Uranium nitride; Thorium nitride; Uranium carbide; rational numbers; thermal conductivity

Online: 22 March 2023 (15:24:16 CET)

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Preprint REVIEW | doi:10.20944/preprints202303.0353.v1

Surface Treatment of Biochar: Methods, Surface Analysis and Potential Applications. A Comprehensive Review

Marlena Gęca, Ahmed M. Khalil, Arvind K. Bhakta, Youssef Snoussi, Piotr Nowicki, Małgorzata Wiśniewska, Mohamed M. Chehimi

Subject: Materials Science, Surfaces, Coatings & Films Keywords: biomass conversion; thermochemical treatment; surface chemical modification; coupling agents; biochar implementation

Online: 20 March 2023 (08:31:16 CET)

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Preprint ARTICLE | doi:10.20944/preprints202303.0348.v1

Understanding the Origin of Luminescence in Porous Organosilica Films with Various Organic Components

Md Rasadujjaman, Jinming Zhang, Dmitry A. Spassky, Sergej Naumov, Alexey S. Vishnevskiy, Konstantin A. Vorotilov, Jiang Yan, Jing Zhang, Mikhail R. Baklanov

Subject: Materials Science, Surfaces, Coatings & Films Keywords: low-k dielectrics; organosilica glass; interconnects; photoluminescence; oxygen deficient centers

Online: 20 March 2023 (07:05:55 CET)

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Preprint ARTICLE | doi:10.20944/preprints202303.0303.v1

Experimental Correlation of the Role of Synthesized Biochar on Thermal, Morphological, and Crystalline Properties of Coagulation Processed poly(1,4-Phenylene Sulfide) Nanocomposites

Zaib Un Nisa, Lee Kean Chuan, Beh Hoe Guan, Faiz Ahmed, Saba Ayub

Subject: Materials Science, Polymers & Plastics Keywords: Synthesis; characterization; carbonization; coagulation; bio char; nanocarbon; morphological

Online: 16 March 2023 (10:35:30 CET)

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Preprint ARTICLE | doi:10.20944/preprints202303.0293.v1

Fabrication of High Mechanical Properties and Wear: Resistance UHMWPE/PP Composites by Incorporating SiC Nanoparticles under a Consecutive Elongational Flow

Hongbin Zhang, Changlin Cao, Xiaochuan Chen, Huibin Cheng, Fei Li, Jianfu Chen, Qingrong Qian, Qinhua Chen

Subject: Materials Science, Polymers & Plastics Keywords: UHMWPE; blends; silicon carbide (SiC); composites; mechanical property; friction resistance

Online: 16 March 2023 (01:50:03 CET)

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Preprint ARTICLE | doi:10.20944/preprints202303.0283.v1

Immobilization on Polyethylenimine and Chitosan Sorbents Modulates the Production of Valuable Fatty Acids by the Chlorophyte Lobosphaera sp. IPPAS C-2047

Svetlana Vasilieva, Karina Shibzukhova, Alexei Solovchenko, Olga Chivkunova, Kristina Antipova, Alexey Morozov, Elena Lobakova

Subject: Materials Science, Polymers & Plastics Keywords: microalgae; attached cultivation; chitosan; polyethylenimine; fatty acids; arachidonic acid

Online: 15 March 2023 (10:45:27 CET)

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Preprint ARTICLE | doi:10.20944/preprints202303.0260.v1

Selective Paste Intrusion: Integration of Reinforcement by WAAM — Concept and Overview of the Current Research

Alexander Straßer, Felix Riegger, Leigh Duncan Hamilton, Thomas Kränkel, Christoph Gehlen, Michael F. Zaeh, Arno Kwade

Subject: Materials Science, General Materials Science Keywords: Additive manufacturing; Concrete; Particle bed; Reinforcement; SPI; WAAM; Rheology; Temperature; Concrete strength

Online: 14 March 2023 (13:24:27 CET)

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Preprint ARTICLE | doi:10.20944/preprints202303.0236.v1

Additive Manufacturing by the Selective Paste Intrusion Method: Effect of the Distance of the Print NozzIe to the Particle bed on the Print Quality

Alexander Straßer, Alexander Haynack, Thomas Kränkel, Christoph Gehlen

Subject: Materials Science, General Materials Science Keywords: Additive Manufacturing; Selective Paste Intrusion; Print Quality; Print Nozzle to Particle Bed Distance; Shape accuracy; 3D scanning

Online: 13 March 2023 (15:35:22 CET)

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Preprint ARTICLE | doi:10.20944/preprints202303.0206.v1

A Polymorph of Dipeptide Halide Glycyl-L-Alanine Iodide Hy-Drate: Crystal Structure, Optical Second Harmonic Generation and Pyroelectricity

Rosa M. F. Baptista, Clara S. B. Gomes, Bruna Silva, João Oliveira, Bernardo Almeida, Cidália Castro, Pedro V. Rodrigues, Ana Machado, Ruben B. Freitas, Manuel R. L. F. Rodrigues, Etelvina De Matos Gomes, Michael Belsley

Subject: Materials Science, General Materials Science Keywords: glycyl-L-alanine iodide; polymorphism; crystal structure; cyclic dipeptides; optical second harmonic generation; pyroelectricity

Online: 13 March 2023 (02:28:08 CET)

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Preprint ARTICLE | doi:10.20944/preprints202303.0152.v1

Influence of Humidity and Heating Rate on the Continuous ZIF Coating during Hydrothermal Growth

Eunji Choi, Choong Hoo Lee, Dae Woo Kim

Subject: Materials Science, Surfaces, Coatings & Films Keywords: Zeolitic imidazolate framework; Membrane; Nucleation; Relative humidity; Solution heating rate

Online: 8 March 2023 (08:57:06 CET)

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Preprint ARTICLE | doi:10.20944/preprints202303.0141.v1

Handling Microstructural Changes and Hardness of the AlSi10Mg Alloy Through SC Doping and Direct Aging Treatment

Fellipe Martinez, Carlos Dos Santos Junior, Jaderson Leal, Argos Silva, Guilherme Gouveia, Jose Spinelli

Subject: Materials Science, Metallurgy Keywords: AlSi10Mg; Scandium; microstructure; direct aging; hardness

Online: 8 March 2023 (02:57:59 CET)

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Preprint ARTICLE | doi:10.20944/preprints202303.0121.v1

Acetaminophen-trace Pharmaceutical Bioremediation using Two Isolated Novel Environment-Friendly Phenotypically/Genotypically-characterized Streptomyces Strains; Chemo-informatics & Experimentally tested for Cytotoxicity & Biological Activity

Donia H Embarez, Ahmed S. Abdel-Razek, Emad B. Basalious, Magdy Mahmoud, Nadia M Hamdy

Subject: Materials Science, Other Keywords: bioremediation; bio-degradation; trace pharmaceuticals; acetaminophen/paracetamol; toxicity; biological anti-microbial activity; in silico; cheminformatics

Online: 7 March 2023 (02:35:38 CET)

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Preprint ARTICLE | doi:10.20944/preprints202303.0108.v1

Characterization of Excavated Silver Alloy (Billon) Coins from Amheida, Dakhla Oasis, Egypt

Mohamed A. El-Gohary, Mai M Rifai, Mahmoud Hussein

Subject: Materials Science, Other Keywords: Amheida; Coin hoard; Silver-copper alloy; Billon; Corrosion products

Online: 6 March 2023 (14:09:26 CET)

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Preprint REVIEW | doi:10.20944/preprints202302.0521.v1

Status and Prospects of High-Entropy Materials for Lithium–Sulfur Batteries

Yikun Yao, Jiajun Chen, Rong Niu, Zhenxin Zhao, Xiaomin Wang

Subject: Materials Science, General Materials Science Keywords: Lithium-sulfur batteries; Catalysis; High-entropy materials; Active sites

Online: 28 February 2023 (13:44:20 CET)

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Preprint ARTICLE | doi:10.20944/preprints202302.0494.v1

Preparation and Magneto-Structural Investigation of High Ordered (L2₁ Structure) Co2MnGe Microwires

Mohamed Salaheldeen, Asma Wederni, Mihail Ipatov, Valentina Zhukova, Arcady Zhukov

Subject: Materials Science, General Materials Science Keywords: Microwires; Heusler alloys; Secondary phases; L21 & B2 phases structure

Online: 28 February 2023 (02:52:49 CET)

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Preprint ARTICLE | doi:10.20944/preprints202302.0472.v1

Combining Digital Image Correlation and Acoustic Emission to Characterize the Flexural Behavior of Flax Biocomposites

Mohamed Habibi, Luc Laperrière

Subject: Materials Science, Other Keywords: Flax; Flexural behavior; Damage behavior; Acoustic Emission; Digital Image Correlation

Online: 27 February 2023 (10:13:53 CET)

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Preprint ARTICLE | doi:10.20944/preprints202302.0459.v1

Copper Ferrite Nanoparticles Synthesized Using Anion Exchange Resin: Influence of Synthesis Parameters on the Cubic Phase Stability

Svetlana Saikova, Aleksandr Pavlikov, Denis Karpov, Aleksandr Samoilo, Sergey Kirik, Mikhail Volochaev, Tatyana Trofimova, Dmitry Velikanov, Artem Kuklin

Subject: Materials Science, Nanotechnology Keywords: copper ferrite; magnetic properties; anion-exchange resin precipitation; magnetic nanoparticles

Online: 27 February 2023 (08:38:56 CET)

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Preprint REVIEW | doi:10.20944/preprints202302.0451.v1

Recent Developments in the Applications of GO/rGO-Based Biosensing Platforms for Pesticide Detectio

Geetha Gopal, Amitava Mukherjee

Subject: Materials Science, Nanotechnology Keywords: graphene oxide (GO); reduced graphene oxide (rGO); biosensors; pesticides; detection

Online: 27 February 2023 (07:03:26 CET)

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

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

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Preprint ARTICLE | doi:10.20944/preprints202302.0446.v1

The Synergistic Effect of Micro to Nano-Cellulose-Clay on the Mechanical Properties of Biodegradable Polypropylene Nanocomposites

Syed Muhammad Imran, Ihsan Iqbal, Yong Ho Choa, Manwar Hussain

Subject: Materials Science, Polymers & Plastics Keywords: nano-cellulose; nanocomposites; mechanical properties; biopolymers

Online: 27 February 2023 (06:27:08 CET)

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Preprint ARTICLE | doi:10.20944/preprints202302.0436.v1

Recrystallization of Hot-Rolled 2A14 Alloy During Semi-Solid Temperature Annealing Process

Yingze Liu, Jufu Jiang, Ying Zhang, Minjie Huang, Jian Dong, Ying Wang

Subject: Materials Science, General Materials Science Keywords: semi-solid annealing; 2A14 aluminum alloy; hot-rolled; EBSD; TEM; recrystallization

Online: 27 February 2023 (03:34:13 CET)

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Preprint ARTICLE | doi:10.20944/preprints202302.0431.v1

Biomineralization Process in Three-Dimensional Scaffolds Based on Bacterial Nanocellulose for Bone Tissue Engineering: Chemi-Cal and Morphological Features, and Stem Cell Differentiation

Ana Cañas-Gutiérrez, Lenka Toro, Cristina Fornaguera, Salvador Borrós, Marlon Osorio, Cristina Castro-Herazo, David Arboleda-Toro

Subject: Materials Science, Biomaterials Keywords: nanocomposites; bacterial nanocellulose; microporosity; biomineralization process and bone regeneration

Online: 27 February 2023 (02:29:23 CET)

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Preprint ARTICLE | doi:10.20944/preprints202302.0418.v1

Multimodal Radiobioconjugates of Magnetic Nanoparticles Labeled with ⁴⁴Sc and ⁴⁷Sc for Theranostic Application

Perihan Unak, Volkan Yasakçı, Elif Tutun, K. Buşra Karatay, Rafał Walczak, Kamil Wawrowicz, Kinga Żelechowska-Matysiak, Agnieszka Majkowska-Pilip, Aleksander Bilewicz

Subject: Materials Science, Nanotechnology Keywords: SPION; multimodal nanoparticles; PET diagnosis; MRI; 44/47Sc; PSMA-617; prostate cancer

Online: 24 February 2023 (04:36:10 CET)

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Preprint SHORT NOTE | doi:10.20944/preprints202302.0406.v1

Thermal Conductivity of ZrO₂, ZrSiO₄, (U,Zr)SiO₄ and UO₂: Numerical Approach

Valeriy Kizka

Subject: Materials Science, General Materials Science Keywords: fuel debris; corium; thermal conductivity; molten core; ZrO2; ZrSiO4; (U,Zr)SiO4; UO2

Online: 23 February 2023 (09:40:22 CET)

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Preprint REVIEW | doi:10.20944/preprints202302.0371.v1

Recent Approaches of Collagen Biomatrix Modification as a Corneal Biomatrix and its Cellular Interaction

Nur Amalia Ra’oh, Rohaina Che Man, Mh Busra Fauzi, Norzana Abd Ghafar, Muhammad Ramdzan Buyong, Ng Min Hwei, Wan Haslina Wan Abdul Halim

Subject: Materials Science, Biomaterials Keywords: collagen biomatrix; optimization; modification; corneal epithelial cells; limbal epithelial stem cells; biocompatibility

Online: 22 February 2023 (03:03:50 CET)

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Preprint ARTICLE | doi:10.20944/preprints202302.0365.v1

Bioinspired Cyclic Dipeptide Functionalized Nanofibers for Thermal Sensing and Energy Harvesting

Daniela Santos, Rosa M. F. Baptista, Adelino Handa, Bernardo Almeida, Pedro V. Rodrigues, Ana R. Torres, Ana Machado, Michael Belsley, Etelvina De Matos Gomes

Subject: Materials Science, Nanotechnology Keywords: cyclic dipeptides; biopolymers; electrospinning; photoluminescence; nanofibers; energy harvesting

Online: 22 February 2023 (02:03:20 CET)

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Preprint ARTICLE | doi:10.20944/preprints202302.0334.v1

Special-Oriented Annealing Twins Induced Orange Peel Morphology of Heat Pipe under Bending Deformation

Song-Wei Wang, Hong-Wu Song, Shi-Hong Zhang, Shuai-Feng Chen

Subject: Materials Science, General Materials Science Keywords: surface roughening; heat pipe; annealing twin; texture

Online: 20 February 2023 (09:06:52 CET)

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Preprint ARTICLE | doi:10.20944/preprints202302.0314.v1

Functional Electrospun Nanofibers Loaded with Plantago Major L. Extract for Potential Use in Cutaneous Wound Healing

Javier Mauricio Anaya-Mancipe, Vanessa de Moura Queiroz, Rafael Ferreira Dos Santos, Rosane Nora Castro, Veronica da Silva Cardoso, Alane Beatriz Vermelho, Marcos Lopes Dias, Rossana. Mara da Silva Moreira Thiré

Subject: Materials Science, Biomaterials Keywords: Electrospinning; Nanofibers; Polycaprolactone; Plantago Major L; Drug delivery; Wound dressing

Online: 20 February 2023 (01:32:00 CET)

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Preprint ARTICLE | doi:10.20944/preprints202302.0308.v1

Porous ZnO-ZnAl₂O₄-CuO Nanocomposites Synthesized by Polymer-Salt Method for Photocatalytic Water Purification and Splitting

Andrey Shelemanov, Artiom Tincu, Sergey Evstropiev, Nikolay Nikonorov, Vladimir Vasilyev

Subject: Materials Science, Nanotechnology Keywords: adsorption; photocatalysis; kinetics; ZnO; nanoparticle

Online: 17 February 2023 (09:19:50 CET)

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Preprint ARTICLE | doi:10.20944/preprints202302.0228.v1

Electrostatic Assembly of Anti-Listeria Bacteriophages on a Self-Assembled Monolayer of Aminoundecanethiol: Film Morphology and Charge Transfer Studies

Paula M. V. Fernandes, Carlos M. Pereira, José M Campiña

Subject: Materials Science, Surfaces, Coatings & Films Keywords: Bacteriophages; P100; Electrostatic Assembly; Colloids; Thin films; AFM; SEM; Charge-Transfer Studies; Food-borne Pathogens; Listeria monocytogenes

Online: 14 February 2023 (03:23:40 CET)

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Preprint ARTICLE | doi:10.20944/preprints202302.0106.v1

Determination of Composition of Raw Materials for Porcelain Fabrication by XRF, TOF-SIMS, and XPS Methods for Further Porcelain Art Items Characterisation and Detection of Modern Counterfeits

Dmitry Wainstein, Vladimir Vakhrushev, Anatoly Kovalev, Egor Konovalov, Anton Volkov, Maria Shipova

Subject: Materials Science, Other Keywords: X-ray fluorescent analysis (XRF); secondary ions mass spectroscopy (SIMS); X-ray photoelectron spectroscopy (XPS); porcelain; pegmatite; Vesco-prima clay; kaolin; bone earth; dolomite; feldspar

Online: 7 February 2023 (02:07:04 CET)

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Preprint REVIEW | doi:10.20944/preprints202302.0061.v2

Structural Strategies of Supramolecular Hydrogels and Their Applications

José Sánchez-Fernández

Subject: Materials Science, Biomaterials Keywords: Supramolecular hydrogels; hydrogel chemistry; self-healing hydrogels; adhesive hydrogels; conductive hydrogels; clays; 3D structures

Online: 6 February 2023 (10:32:53 CET)

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Preprint ARTICLE | doi:10.20944/preprints202301.0587.v1

Novel Quick Value Assessment Procedure Of The Bond Work Index

Dejan Todorović, Branislav Ivošević, Vladimir Jovanović, Dragan Radulović, Vladan Milošević, Marko Pavlović, Sonja Milićević

Subject: Materials Science, General Materials Science Keywords: grinding, kinetics; Bond index; simplified procedure; composite samples.

Online: 31 January 2023 (15:30:54 CET)

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Preprint ARTICLE | doi:10.20944/preprints202301.0544.v1

Design of Green TiO₂-Based Semiconductors for Microplastic and Nanoplastic Photocatalytic Degradation

Aranza Denisse Vital-Grappin, Maria Camila Ariza-Tarazona, Isaac Sandoval, Cesar Abraham Rojas-Guerrero, Juan Francisco Villarreal-Chiu, Erika Iveth Cedillo-González

Subject: Materials Science, Nanotechnology Keywords: microplastics; nanoplastics; TiO2; crystallinity; film; photocatalysis; degradation; mitigation; microplastic pollution.

Online: 30 January 2023 (07:06:32 CET)

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Preprint ARTICLE | doi:10.20944/preprints202301.0536.v1

On the State of Graphene Oxide Nanosheet in a Polyurethane Matrix

Sergey A. Baskakov, Yulia V. Baskakova, Eugene N. Kabachkov, Elizaveta V. Dvoretskaya, Svetlana S. Krasnikova, Vitaly I. Korepanov, Alexandre Michtchenko, Yury M. Shulga

Subject: Materials Science, Polymers & Plastics Keywords: graphene oxide; nanosheet; polyurethane; composite; XPS spectra; Raman spectra

Online: 30 January 2023 (02:43:12 CET)

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Preprint ARTICLE | doi:10.20944/preprints202301.0525.v1

Deformation Inhomogeneities of A Hypoeutectic Aluminum-Silicon Alloy Modified by Electron Beam Treatment

Artem Ustinov, Anatoly Klopotov, Yuri Ivanov, Dmitry Zagulyaev, Anton D. Teresov, Elizaveta Petrikova, Denis Gurianov, Andrey Chumaevskii

Subject: Materials Science, Other Keywords: electron beam treatment; aluminum-silicon alloy; deformation inhomogeneities; surface hardening

Online: 28 January 2023 (09:47:13 CET)

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Preprint REVIEW | doi:10.20944/preprints202301.0523.v1

Potential Future Alternative Resources for Rare Earth Elements: Opportunities and Challenges

Balaram Vysetti

Subject: Materials Science, General Materials Science Keywords: rare earth elements; deposits; alternative sources; marine sediments; river sediments; phospho-rites; red mud; fly ash; acid mine drainage; e-waste; extra-terrestrial

Online: 28 January 2023 (08:38:38 CET)

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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: Materials Science, 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)

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Preprint ARTICLE | doi:10.20944/preprints202301.0453.v1

Optical Properties of Composite Silver Nanoparticles

Ibrahim Elagib Ali, Wafa Sultan Almutairi

Subject: Materials Science, Nanotechnology Keywords: Arabic gum; nanocomposite; melanin; optical properties; silver nanoparticles

Online: 25 January 2023 (10:12:27 CET)

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Preprint REVIEW | doi:10.20944/preprints202301.0432.v1

Recent Advances of Modified Ni (Co, Fe)-based LDH 2D Materials for Water Splitting

Guang Chen Li, Peng Yu Bao, Zhou En Liu, Ran Bin Zhao, Tao Sun

Subject: Materials Science, Nanotechnology Keywords: Water splitting; LDH materials; Hydrogen evolution reaction; Oxygen evolution reaction; Electrocatalytic performance

Online: 24 January 2023 (13:18:37 CET)

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Preprint ARTICLE | doi:10.20944/preprints202301.0407.v1

Simulation of the Long-Term Ageing of Polypropylene-Made Disposable Surgical Masks and Filtering Facepiece Respirators

Sandra Carreiras-Suarez, Lidia Dominguez-Ramos, Massimo Lazzari

Subject: Materials Science, Polymers & Plastics Keywords: weathering; photoageing; microplastics; polymer oxidation: ATR-FTIR spectroscopy

Online: 23 January 2023 (09:40:23 CET)

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Preprint ARTICLE | doi:10.20944/preprints202301.0387.v1

New Insights in the Synthesis of High Molecular Weight Aromatic Polyamides. Improved Synthesis of Rod-Like PPTA

Guiomar Hernández, Sergio Ferrero, Helmut Reinecke, Camino Bartolomé, Jesús M. Martinez-Ilarduya, Cristina Álvarez, Ángel E. Lozano

Subject: Materials Science, Polymers & Plastics Keywords: polyamidation; in situ silylation; poly(p-phenylene terephthalamide (PPTA); Kevlar; NMR; DFT molecular simulation

Online: 23 January 2023 (02:00:35 CET)

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Preprint ARTICLE | doi:10.20944/preprints202301.0351.v1

Solvothermal Synthesis of LaF₃:Ce Nanoparticles for Use in Medicine: Luminescence, Morphology and Surface Properties

Dorokhina Anastasiia, Ryoya Ishihara, Hiroko Kominami, Vadim Bakhmetyev, Maxim Sychov, Toru Aoki, Hisashi Morii

Subject: Materials Science, Nanotechnology Keywords: X-ray luminescence; solvothermal synthesis; LaF3:Ce; Zeta-potential; PEG; PVP; PEI

Online: 19 January 2023 (09:13:37 CET)

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Preprint REVIEW | doi:10.20944/preprints202301.0330.v1

The Use of Silver Nanoparticles in Environmental Remediation

Pravati Panda, Subhendu Chakraborty, Suresh Babu Naidu Krishna

Subject: Materials Science, Nanotechnology Keywords: applications; biogenic; environment; remediation; silver; soil

Online: 18 January 2023 (09:17:08 CET)

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Preprint ARTICLE | doi:10.20944/preprints202301.0295.v1

Investigation of Morphology, Crystal Structure, and Gas Sensing Behavior of Composite Ceramic

Hasniah Aliah, Andhy Setiawan, Ryan Nur Iman, Dani Gustaman Syarif, Asti Sawitri, Assa Prima Dasti Putri

Subject: Materials Science, General Materials Science Keywords: Gas sensor; Jarosite; Manganite; Composite ceramic; Gas adsorption.

Online: 17 January 2023 (06:08:41 CET)

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Preprint ARTICLE | doi:10.20944/preprints202301.0278.v1

Sorption of CO2, CH4 and their mixtures in Amorphous Poly(2,6-dimethyl-1,4-phenylene)oxide (PPO)

Valerio Loianno, Antonio Baldanza, Giuseppe Scherillo, Pellegrino Musto, Giuseppe Mensitieri

Subject: Materials Science, Polymers & Plastics Keywords: mixed gas sorption; glassy polymers; FTIR Spectroscopy; thermodynamic modelling; NRHB

Online: 16 January 2023 (08:45:02 CET)

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Preprint ARTICLE | doi:10.20944/preprints202301.0236.v1

The Relaxation Model of Relation between Elastic Modulus and Thermal Expansivity of Thermosetting Polymers’ and Frps’

Alexander Korolev, Maxim Mishnev, Dmitriy Ulrikh, Alexander Zadorin

Subject: Materials Science, Polymers & Plastics Keywords: polymers; polymer composites; glass fiber reinforced plastics; elasticity; modulus of elasticity; thermal expansivity; coefficient of thermal expansion; relaxation; thermo-relaxation

Online: 13 January 2023 (06:26:49 CET)

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Preprint ARTICLE | doi:10.20944/preprints202301.0172.v1

Transferable, Transparent and Flexible Pseudocapacitors from Ternary V2O5/PEDOT/Graphene Electrodes with High Durability in Organic Electrolyte

Sanju Gupta, Brendan Evans

Subject: Materials Science, Nanotechnology Keywords: Solid-state supercapacitors, flexibility, transferability, energy storage, SECM

Online: 10 January 2023 (03:42:21 CET)

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Preprint ARTICLE | doi:10.20944/preprints202301.0090.v1

Physical, Thermal, and Chemical Properties of Fly Ash Cenospheres Obtained for Different Sources

Andrei Shishkin*, Vitaliijs Abramovskis, Ilmars Zalite, Ashish Kumar Singh, Gundars Mezinskis, Vladimir Popov, Jurijs Ozolins

Subject: Materials Science, Surfaces, Coatings & Films Keywords: Hollow microballons; cenospheres; ceramics phase composition; chemical composition

Online: 5 January 2023 (02:31:05 CET)

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Preprint ARTICLE | doi:10.20944/preprints202301.0058.v1

Porous Thermoplastic Molded Regenerated Silk Crosslinked by the Addition Of Citric Acid

Alessio Bucciarelli, Nicola Vighi, Alessandra Maria Bossi, Brunella Grigolo, Devid Maniglio

Subject: Materials Science, Biomaterials Keywords: Bone Tissue Engineering; Bone Scaffold; Citric Acid; Silk Resin; Compression Molding

Online: 4 January 2023 (03:37:54 CET)

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Preprint REVIEW | doi:10.20944/preprints202301.0053.v1

Nanostrategies for Therapeutic and Diagnostic Targeting of Gastrin-Releasing Peptide Receptor

Beata Paulina Rurarz, Małgorzata Bukowczyk, Natalia Gibka, Agnieszka Wanda Piastowska-Ciesielska, Urszula Karczmarczyk, Piotr Ulański

Subject: Materials Science, Nanotechnology Keywords: gastrin releasing peptide receptor; GRPR; bombesin receptor subtype 2; BB2; bombesin; targeted therapy; molecular imaging; theranostics; nanotechnology; nanoparticle; nanomedicine

Online: 4 January 2023 (03:19:26 CET)

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Preprint ARTICLE | doi:10.20944/preprints202301.0026.v1

Local and Global Order in Dense Packings of Semi-flexible Polymers of Hard Spheres

Daniel Martínez-Fernández, Miguel Herranz, Katerina Foteinopoulou, Nikos Ch. Karayiannis, Manuel Laso

Subject: Materials Science, Polymers & Plastics Keywords: semi-flexible polymers; hard sphere; athermal chain; Monte Carlo; molecular simulation; crystallization; packing; phase transition; order parameter; liquid crystal; nematic order; oblate mesogen; prolate mesogen; face centered cubic; hexagonal close packed; bending angle; freely-jointed model

Online: 3 January 2023 (09:30:22 CET)

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Preprint ARTICLE | doi:10.20944/preprints201801.0036.v16

Atomic Structure and Binding of Carbon Atoms

Mubarak Ali

Subject: Materials Science, General Materials Science Keywords: Carbon; Atomic structure; Electron dynamics; Structure; Binding energy

Online: 3 January 2023 (08:35:12 CET)

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Preprint ARTICLE | doi:10.20944/preprints202301.0002.v1

Graphene-TLL-Cu₂ONPs Hybrid as Highly Efficient Catalyst for Degradation of Organic Pollutans

Noelia Losada-Garcia, Jannier Carranza, Jose M. Palomo

Subject: Materials Science, Other Keywords: Graphene; copper oxide nanoparticles; nanohybrid; trichloroethylene; Rhodamine B; water remediation.

Online: 3 January 2023 (04:30:54 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0583.v1

Laser Patterned Alumina Mask and Mask-less Dry Etch of Si for Light Trapping

Jovan Maksimovic, Haoran Mu, Daniel Smith, Tomas Katkus, Mantas Vaičiulis, Ramūnas Aleksiejūnas, Gediminas Seniutinas, Soon Hock Ng, Saulius Juodkazis

Subject: Materials Science, Nanotechnology Keywords: light trapping; Si solar cells; ablation; dry etch; Lambertian limit

Online: 30 December 2022 (10:14:28 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0546.v1

Effect of Recrystallization Behavior of AZ31 Magnesium Alloy on Damping Capacity

Kibeom Kim, Yebin Ji, Kwonhoo Kim, Minsoo Park

Subject: Materials Science, Metallurgy Keywords: AZ31 magnesium alloy; Hot-rolling; Annealing; Static Recrystallization; Tensile Twinning; Crys-tallographic Texture; Damping Capacity

Online: 29 December 2022 (01:50:12 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0528.v1

High Resolution Magnetoelectric Sensor and Low-frequency Measurement using Frequency up-conversion Technique

Kunyu Sun, Zhihao Jiang, Chengmeng Wang, Dongxuan Han, Zhao Yao, Weihua Zong, Zhejun Jin, Shandong Li

Subject: Materials Science, General Materials Science Keywords: magnetoelectric sensors; frequency upconversion technique; piezomagnetic material; low-frequency weak magnetic field

Online: 28 December 2022 (04:06:49 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0521.v1

Layer-by-Layer Deposited Multi-Modal PDAC/rGO Composite-based Sensors

Ammar Al-Hamry, Tianqi Lu, Jing Bai, Anurag Adiraju, Tharun K. Ega, Igor A. Pašti, Olfa Kanoun

Subject: Materials Science, Nanotechnology Keywords: multi-modal sensing devices; PDAC; reduced graphene oxide; layer-by-layer deposition; temperature monitoring; relative humidity measurements; volatile organic compounds; electrochemical sensing

Online: 28 December 2022 (01:18:48 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0514.v1

Si-Cr Alloys at Nanoscale

Jovan Maksimovic, Haoran Mu, Molong Han, Daniel Smith, Tomas Katkus, Vijayakumar Anand, Yoshiaki Nishijima, Soon Hock Ng, Saulius Juodkazis

Subject: Materials Science, Nanotechnology Keywords: nano-alloy; Si-Cr; Si nano-needles; sub-100 nm; nanoscale

Online: 27 December 2022 (08:41:50 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0505.v1

Talbot Effect in InAs/GaAs Coupled Cylindrical Quantum Dots Ensemble

Paytsar Mantashyan, Grigor Mantashian, David Hayrapetyan

Subject: Materials Science, Nanotechnology Keywords: coupled quantum dots; InAs/GaAs; tunneling effect; exciton; biexciton; Talbot effect; optical lattice

Online: 27 December 2022 (02:52:52 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0461.v1

Fabrication Temperature-Related Porosity Effects on the Mechanical Properties of Additively Manufactured CFRP Composites

Olusanmi Adeniran, Norman Osa-uwagboe, Weilong Cong, Monsuru Ramoni

Subject: Materials Science, General Materials Science Keywords: additive manufacturing; fabrication temperature; porosity effects; carbon-fiber-reinforced polymer composites; mechanical properties; micro CT scan

Online: 26 December 2022 (02:33:37 CET)

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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: 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)

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Preprint ARTICLE | doi:10.20944/preprints202212.0435.v1

Combining Chitosan Nanoparticles and Garlic Essential Oil as additive fillers to Pectin Edible Films for Primary Rice Containing

Vanessa Santos, Marcos V. Lorevice, Graziela Solferini Baccarin, Fabíola Medeiros, Fauze Aouada, Marcia Regina de Moura

Subject: Materials Science, Nanotechnology Keywords: biopolymers; nanoparticles; garlic essential oil; packaging

Online: 23 December 2022 (02:01:47 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0407.v1

Effect of Er, Si, Hf, Nb Additives on the Thermal Stability of Microstructure, Electrical Resistivity and Microhardness of Fine-Grained Aluminum Alloys Al-0.25%Zr

A. V. Nokhrin, G. S. Nagicheva, V. N. Chuvil’deev, V. I. Kopylov, A. A. Bobrov, N. Yu. Tabachkova

Subject: Materials Science, General Materials Science Keywords: Aluminum alloys; Al-Zr; microstructure; electrical conductivity; microhardness; diffusion.

Online: 22 December 2022 (02:30:23 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0398.v1

Effect of Sc, Hf, and Yb Additions on Superplasticity of a Fine-grained Al-0.4%Zr Alloy

A. V. Nokhrin, M. Yu. Gryaznov, S. V. Shotin, G. S. Nagicheva, M. K. Chegurov, A. A. Bobrov, V. I. Kopylov, V. N. Chuvil’deev

Subject: Materials Science, General Materials Science Keywords: aluminum; fine-gained alloys; doping; superplasticity; grain growth; diffusion

Online: 21 December 2022 (09:43:13 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0396.v1

Incorporation and Deposition of Spin Crossover Materials Into and Onto Electrospun Nanofibers

Maximilian Seydi Kilic, Jules Brehme, Justus Pawlak, Kevin Tran, Friedrich Wilhelm Bauer, Takuya Shiga, Taisei Suzuki, Masayuki Nihei, Ralf Sindelar, Franz Renz

Subject: Materials Science, Polymers & Plastics Keywords: Spin Crossover; (Coaxial)-electrospinning; Triazole Complexes; nano fibers; PMMA; Coordination Chemistry; Composites

Online: 21 December 2022 (09:19:47 CET)

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Preprint REVIEW | doi:10.20944/preprints202212.0380.v1

Li-Rich Layered Oxides: Structure and Doping Strategies to Enable Co-poor/Co-free Cathodes for Li-Ion Batteries

Laura Silvestri, Mariarosaria Tuccillo, Arcangelo Celeste, Sergio Brutti

Subject: Materials Science, General Materials Science Keywords: lithium rich layered oxides; secondary aprotic batteries; positive electrode materials; Li-ion; cathodes.

Online: 21 December 2022 (03:36:22 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0355.v1

Effect of Sc:Zr Ratio on Superplastic Behavior of Ultrafine-grained Al-6%Mg-Sc-Zr Alloys

V. N. Chuvil’deev, M. Yu. Gryaznov, S. V. Shotin, A. V. Nokhrin, C. V. Likhnitskii, G. S. Nagicheva, M. K. Chegurov, V. I. Kopylov, O. P. Pirozhnikova, A. A. Bobrov

Subject: Materials Science, General Materials Science Keywords: aluminum alloy; ultrafine-grained microstructure; superplasticity; dynamic grain growth; cavitation fracture

Online: 20 December 2022 (04:35:58 CET)

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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: Materials Science, Metallurgy Keywords: synthetic cast iron; charge materials; steel scrap; nitrogen in cast iron iron; mechanical properties

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

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Preprint ARTICLE | doi:10.20944/preprints202212.0344.v1

Plasticized Mechanical Recycled PLA Films Reinforced with Microbial Cellulose Particles Obtained from Kombucha Fermented in Yerba Mate Waste

Ángel Agüero, Esther Corral Perianes, Sara Soledad Abarca de las Muelas, Diego Lascano, María del Mar De la Fuente García-Soto, Mercedes Ana Peltzer, Rafael Balart, Marina Patricia Arrieta

Subject: Materials Science, Polymers & Plastics Keywords: PLA; cellulose; yerba mate; kombucha; food packaging.

Online: 20 December 2022 (01:46:15 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0332.v1

Effect of Aging of Orthodontic Aligners in Different Storage Media on Force and Torque Generation: An in vitro Study

Tarek Elshazly, Diva Nang, Bijan Golkhani, Hanaa Elattar, Christoph Bourauel

Subject: Materials Science, Biomaterials Keywords: Biomechanics; Orthodontic force; Torque; Tooth Movement; Removable Thermoplastic Appliance; Aging; Aligners

Online: 19 December 2022 (09:10:51 CET)

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Preprint REVIEW | doi:10.20944/preprints202212.0247.v2

Recent Advances in Surface Modifications of Elemental Two-Dimensional Materials: Structures, Properties, and Applications

Junbo Chen, Chenhui Wang, Hao Li, Xin Xu, Jiangang Yang, Zhe Huo, Lixia Wang, Weifeng Zhang, Xudong Xiao, Yaping Ma

Subject: Materials Science, General Materials Science Keywords: elemental two-dimensional materials; allotropic structures; surface modifications; properties; applications

Online: 19 December 2022 (02:51:52 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0308.v1

The Effect of Few-layer Graphene on the Complex of Hardness, Strength and Thermo Physical Properties of Polymer Composite Materials Produced by DLP 3D Printing

Sergey Kidalov, Alexander Voznyakovskii, Aleksei Vozniakovskii, Sofya Titova, Yvgenii Auchynnikau

Subject: Materials Science, Polymers & Plastics Keywords: photopolymer resin; few-layer graphene; FLG; DLP; 3D printing; hardness; bending strength; charpy impact strength; thermal conductivity

Online: 16 December 2022 (14:26:14 CET)

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Preprint ARTICLE | doi:10.20944/preprints202211.0394.v2

Synthesis of Sandwiched Composite Nanomagnets by Epitaxial Growth of Fe₃O₄Layers on SrFe₁₀Cr₂O₁₉ Nanoplates in High-Boiling Organic Solvent

Evgeny O. Anokhin, Danila A. Deyankov, Zitian Xia, Ekaterina S. Kozlyakova, Vasily A. Lebedev, Anatolii V. Morozov, Daniil A. Kozlov, Roy R. Nygaard, Dmitry I. Petukhov, Lev A. Trusov

Subject: Materials Science, Nanotechnology Keywords: permanent magnets; hexaferrites; magnetic nanocomposites; nanomagnets; epitaxy; exchange coupling; shape anisotropy

Online: 15 December 2022 (07:03:38 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0266.v1

Production of Biomodified Bleached Kraft Pulp by Catalytic Conversion Using Penicillium verruculosum Enzymes: Composition, Properties, Structure and Application

Aleksandr R. Shevchenko, Irina V. Tyshkunova, Alexey V. Malkov, Evgeniy A. Toptunov, Vadim D. Telitsin, Alexandra M. Rozhkova, Olga A. Sinitsyna, Iosif V. Gofman, Andrey S. Aksenov

Subject: Materials Science, Biomaterials Keywords: enzymatic hydrolysis; biomodified kraft pulp; cellulose; xylan; cryogel; crystallinity

Online: 15 December 2022 (06:23:58 CET)

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The global development of bioeconomy is impossible without technologies for comprehensive processing of plant renewable resources. The use of proven pretreatment technologies raises the possibility of industrial implementation of enzymatic conversion of polysaccharides from lignocellulose considering the process complexity. For instance, a well-tuned kraft pulping produces a substrate easily degraded by cellulases and hemicelulases. Enzymatic hydrolysis of bleached hardwood kraft pulp was carried out using an enzyme complex of endoglucanases, cellobiohydrolases, b-glucosidases and xylanases produced by recombinant strains of Penicillium verruculosum at a 10 FPU/g mixture rate and a 10 % substrate concentration. As a result of biocatalysis the following products are obtained: sugar solution, mainly glucose, xylobiose, xylose, as well as other minor reducing sugars; modified complex based on cellulose and xylan. The composition of biomodified kraft pulp was determined involving the use of HPLC. The method for determining the degree of crystallinity on an X-ray diffractometer was used to characterize the properties. The article shows the possibility of producing modified cellulose cryogels by amorphization with concentrated 85 % H3PO4 followed by precipitation with water and supercritical drying. Analysis of the enzymatic hydrolysate composition reveals the predominance of glucose (55...67 %) in reducing sugars with a maximum content of up to 6 % in the solution after 72 hours. The properties and structure of modified kraft pulp were shown to change during biocatalysis, in particular, the degree of crystallinity increased by 5 % after 3 hours of enzymatic hydrolysis. We obtained cryogels based on the initial and biomodified kraft pulp with conversion rates of 35, 50 and 70 %. The properties of these cryogels are not inferior to those based on industrial microcrystalline cellulose, as confirmed by the specific surface area, degree of swelling, porosity and SEM images. Thus, kraft pulp enzymatic hydrolysis offers prospects not only for producing sugar-rich hydrolysates for microbiological synthesis, but also for producing cellulose powders and cryogels with specified properties.

Preprint REVIEW | doi:10.20944/preprints202212.0247.v1

Recent Advances in Surface Modifications of Elemental Two-Dimensional Materials: Structures, Properties, and Applications

Junbo Chen, Chenhui Wang, Hao Li, Xin Xu, Jiangang Yang, Zhe Huo, Lixia Wang, Weifeng Zhang, Xudong Xiao, Yaping Ma

Subject: Materials Science, General Materials Science Keywords: elemental two-dimensional materials; allotropic structures; surface modifications; properties; applications

Online: 14 December 2022 (06:38:41 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0239.v1

Near Infrared Efficiency Enhancement of Silicon Photodiodes by Integration of Metal Nanostructures Supporting Surface Plasmon Polaritrons

Elia Scattolo, Alessandro Cian, Luisa Petti, Paolo Lugli, Damiano Giubertoni, Giovanni Paternoster

Subject: Materials Science, Nanotechnology Keywords: plasmonics; plasmonics photodetector; focused ion beam; silicon photodiode; near-infrared; LiDar.)

Online: 13 December 2022 (11:01:47 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0200.v1

Sustainable Composites From Nature to Construction. Hemp and Linseed Reinforced Biocomposites Based on Biobased Epoxy Resins

Julio Vidal, David Ponce, Alice Mija, Monika Rymarczyk, Pere Castell

Subject: Materials Science, Polymers & Plastics Keywords: Linseed; hemp; biocomposites; bioepoxy; nonwoven reinforcements

Online: 12 December 2022 (11:56:43 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0174.v1

Possibilities of Rock Processing with a High-pressure Abrasive Water Jet with an Aspect Terms to Minimising Energy Consumption

Grzegorz Chomka, Maciej Kasperowicz, Jarosław Chodór, Jerzy Chudy, Leon Kukiełka

Subject: Materials Science, General Materials Science Keywords: high-pressure water jet; high-pressure abrasive water- jet; rock processing

Online: 9 December 2022 (09:22:30 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0124.v1

Thermochemistry of Sulfur-Based Vulcanization and of Devulcanized and Recycled Natural Rubber Compounds

Franco Cataldo

Subject: Materials Science, Polymers & Plastics Keywords: Bonding between adjacent polymer chains; sulfur-based crosslinks; DSC; thermochemistry; vulcanization; mechanochemistry; mechanophore; devulcanization; reclaim; recycling

Online: 7 December 2022 (09:52:21 CET)

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Preprint REVIEW | doi:10.20944/preprints202212.0115.v1

Gelatin and Bioactive Glass Composites for Tissue Engineering: A Review

Maria E. V. Barreto, Rebeca P. Medeiros, Adam Shearer, Marcus V. L. Fook, Maziar Montazerian, John C. Mauro

Subject: Materials Science, Biomaterials Keywords: bioactive glass; gelatin; tissue engineering; bone; composite

Online: 7 December 2022 (04:30:39 CET)

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Preprint REVIEW | doi:10.20944/preprints202212.0112.v1

A Floating System for Drug Delivery using Microballoons

Sachin Kothawade, Vishal Pande, Sandesh Bole, Kalyani Autade, Rajashri Sumbe, Shubhangi Albhar, Kunal Raut

Subject: Materials Science, Nanotechnology Keywords: Gastro retentive drug delivery systems; non-effervescent systems; floating drug delivery systems; microballoons; CRDDS

Online: 7 December 2022 (02:26:58 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0085.v1

X-ray Exited Optical Luminescence of Eu in Diamond Crystals Synthesized at High-pressure High-temperature

Vasily Timofeevich Lebedev, Fedor Mikhailovich Shakhov, Alexandr Yakovlevich Vul, Arcady Anatolievich Zakharov, Vladimir Georgievich Zinoviev, Vera Alexeevna Orlova, Eduard Vladimirovich Fomin

Subject: Materials Science, Nanotechnology Keywords: diamond; synthesis; diphthalocyanine; pyrolyzate; lanthanide; X-ray; luminescence

Online: 6 December 2022 (01:35:19 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0076.v1

Spark Plasma Sintering of Nanostructured TiCrC Carbides Prepared via Mechanical Alloying

Mohsen Mhadhbi, İlker Emin Dağ, Barış Avar, Mohamed Khitouni, Frédéric Schoenstein, Noureddine Jouini

Subject: Materials Science, Nanotechnology Keywords: mechanical alloying; titanium carbide; spark plasma sintering; cermets; corrosion

Online: 5 December 2022 (11:30:50 CET)

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Preprint COMMUNICATION | doi:10.20944/preprints202212.0060.v1

Hydroxychloroquine Enhances Cytotoxic Properties of Extracellular Vesicles and Extracellular Vesicle-Mimetic Nanovesicles Loaded with Chemotherapeutics

Sergey Brezgin, Anastasiya Kostyusheva, Natalia Ponomareva, Ekaterina Bayurova, Anastasia Frolova, Olga Slatinskaya, Landysh Fatkhutdinova, Georgy Maksimov, Mikhail Zyuzin, Ilya Gordeychuk, Sergey Makarov, Alexander V. Ivanov, Andrey Zamyatnin, Vladimir Chulanov, Alessandro Parodi, Dmitry Kostyushev

Subject: Materials Science, Nanotechnology Keywords: exosomes; extrusion; proteolipid nanoparticles; drug delivery; nanomedicine; doxorubicin; ex-truded nanoparticles; hydroxychloroquine; endolysosomal escape; lysosomotropic

Online: 5 December 2022 (06:04:21 CET)

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Preprint REVIEW | doi:10.20944/preprints202212.0048.v1

Novel Polyhexanide-Releasing Membranes for Antimicrobial Wound Dressings: A Critical Review

A. Jorge Guiomar, Ana M. Urbano

Subject: Materials Science, Biomaterials Keywords: poly(hexamethylene biguanide); polyhexamethylene biguanide; polyhexanide; PHMB; membrane; controlled drug release; wound dressing; antimicrobial; cytotoxicity; wound healing

Online: 2 December 2022 (10:31:38 CET)

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The prevalence for chronic, non-healing skin wounds in the general population, most notably diabetic foot ulcers, venous leg ulcers and pressure ulcers, is approximately 2% and is expected to increase, driven mostly by an aging population and the steady rise in obesity and diabetes. Non-healing wounds often become infected, increasing the risk of life-threatening complications, which poses a significant socioeconomic burden. Aiming at an improved management of infected wounds, a variety of wound dressings incorporating antimicrobials (AMDs), namely polyhexanide (poly(hexamethylene biguanide); PHMB), have been introduced in the wound care market. However, many wound care professionals agree that none shows comprehensive and optimal antimicrobial activity. This manuscript summarizes and discusses studies on novel PHMB-releasing membranes (PRMs) for wound dressings, detailing their preparation, physical properties relevant in the context of AMDs, drug loading and release, antibacterial activity, biocompatibility, wound healing capacity, and clinical trials conducted. Some of these PRMs were able to improve wound healing in in vivo models, with no associated cytotoxicity, but significant differences in study design make it difficult to compare overall effi-cacies. It is hoped that this review, which includes, whenever available, international standards for testing AMDs, will provide a framework for future studies.their preparation, physical properties relevant in the context of AMDs, drug loading and release, antibacterial activity, biocompatibility, wound healing capacity, and clinical trials conducted. Some of these PRMs were able to improve wound healing in in vivo models, with no associated cytotoxicity, but significant differences in study design make it difficult to compare overall efficacies. It is hoped that this review, which includes, whenever available, international standards for testing AMDs, will provide a framework for future studies.

Preprint ARTICLE | doi:10.20944/preprints202212.0037.v1

Adsorbed Oxygen Ions and Oxygen Vacancies; Their Concentration and Distribution in Metal Oxide Chemical Sensors and Influencing Role in Sensitivity and Sensing Mechanism

Engin Ciftyürek, Zheshen Li, Klaus Schierbaum

Subject: Materials Science, General Materials Science Keywords: Gas Sensor, Adsorbed Oxygen, Tungsten oxide, XPS, UPS, XPEEM, Sensing Mechanism, H2, Metal Oxides, Synchrotron.

Online: 2 December 2022 (02:33:15 CET)

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Oxidation reactions on semiconducting metal oxides (SMOs) surfaces have been extensively worked on in catalysis, fuel cells, and sensors. SMOs engaged powerfully in energy-related applications such as batteries, supercapacitors, solid oxide fuel cells (SOFCs), and chemical gas sensors. The deep understanding of SMO surface and oxygen interactions and defect engineering has become significant because all those mentioned applications are based on the adsorption/absorption and consumption/transportation of adsorbed (physisorbed-chemisorbed) oxygen. More understanding of adsorbed oxygen and oxygen vacancies (〖V_O^•,V〗_O^(••)) is needed, as the former is the vital requirement for sensing chemical reactions, while the latter facilitates the replenishment of adsorbed oxygen ions on the surface. We determined the relation between sensor response (sensitivity) and the amounts of adsorbed oxygen ions (O_(2(ads))^-,O_((ads),)^- O_2(ads)^(2-),O_((ads))^(2-)), water/hydroxide groups (H2O/OH^-), oxygen vacancies (〖V_O^•,V〗_O^(••)), and ordinary lattice oxygen ions (O_lattice^(2-)) as a function of temperature. During hydrogen (H2) testing, the different oxidation states (W6+, W5+, and W4+) of WO3 were quantified and correlated with oxygen vacancy formation (〖V_O^•,V〗_O^(••)). We used a combined application of XPS, UPS, XPEEM-LEEM, and chemical, electrical and sensory analysis for H2 sensing. We established a correlation between the H2 sensing mechanism of WO3, sensor signal magnitude, the amount of adsorbed oxygen ions, and sensor testing temperature. This paper also provides a review of the detection, quantification, and identification of different adsorbed oxygen species. The different surface and bulk-sensitive characterization techniques relevant to analyzing the SMOs-based sensor are tabulated, providing the sensor designer with the chemical, physical, and electronic information extracted from each technique.

Preprint ARTICLE | doi:10.20944/preprints202212.0013.v1

Hybrid Silica-Coated PLGA Nanoparticles for Enhanced Enzyme-Based Therapeutics

Kyle T. Gustafson, Negin Mokhtari, Elise C. Manalo, Jose Montoya Mira, Austin Gower, Ya-San Yeh, Mukanth Vaidyanathan, Sadik C. Esener, Jared Fischer

Subject: Materials Science, Nanotechnology Keywords: poly(lactic-co-glycolic acid); silica; nanoparticles; enzymes; amino acid depletion; cancer; drug delivery; double emulsion; biocompatible

Online: 1 December 2022 (07:56:18 CET)

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Preprint ARTICLE | doi:10.20944/preprints202212.0007.v1

Elucidation of the Strong Effect of the Annealing and the Magnetic Field on the Magnetic Properties of Ni₂-based Heusler Microwires

Mohamed Salaheldeen, Asma Wederni, Mihail Ipatov, Valentina Zhukova, Julian Maria González, Arcady Zhukov

Subject: Materials Science, General Materials Science Keywords: Heusler alloys; glass-coated microwires; magnetic field; annealing; Taylor-Ulitovsky

Online: 1 December 2022 (03:16:21 CET)

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We studied the effect of annealing and the applied magnetic field from 50 Oe to 20 kOe on the magneto-structural behavior of Ni2FeSi-based Heusler microwires fabricated by using Taylor-Ulitovsky technique. Using the XRD analysis, a strong effect of annealing, manifested as the development of the crystallization process, was observed. The average grain size and crystalline phase content of annealed sample increase from 21.3 nm and 34 % to 32.8 nm and 79%, respectively, as-compared to the as-prepared one. In addition, upon annealing phase transforms into a monoclinic martensitic structure with modulation 10M were observed, which cannot be found in the as-prepared sample. Concerning the magnetic properties, both samples show ferromagnetic behavior below and above the room temperature, where the Curie temperature of Ni2FeSi is higher than room temperature. The induced secondary phases have a noticeable effect on the magnetic behavior of the annealed sample, where a high normalized saturation magnetization (NMs) and low normalized reduced remenance (Mr = M/M5K), compared to the as- prepared have been detected. Additionally, the coercivity of annealed sample shows one flipping point at 155 K where it behavior with temperature is changed. Meanwhile, the as-prepared sample show two flipped point at 205 K and 55 K. A mismatch between field cooling (FC) and field heating (FH) magnetization curves with temperature has been detected for annealed sample at low applied magnetic field. In addition the FC and FH curves shows different slopes with variation the temperature and the magnetic field. By increasing the external magnetic field higher than 200 Oe and up to 20 kOe a gradual changing in the magnetic behavior has been detected, where the mismatch and different slopes disappeared at applying magnetic field about 20 kOe. The difference in magnetic and structure behavior of Ni2FeSi microwires sample is discussed considering the effect of induced internal stresses by the presence of a glass coating and the recrystallization and stresses relaxation upon annealing.

Preprint ARTICLE | doi:10.20944/preprints202211.0577.v1

A High-Performance Stability-Indicating Liquid Chromatographic Novel Method for Determining Recombinant Human Erythropoietin in Bulk and Dosage Form

Sachin Namdeo Kothawade, Vishal Vijay Pande, Shubhangi Nivrutti Albhar, Sandesh Sacchidanand Bole, Kunal Ganesh Raut, Vaibhav Sudhakar Wagh

Subject: Materials Science, General Materials Science Keywords: Recombinant Human Erythropoietin; Stability-indicating; Reverse phase; HPLC-UV

Online: 30 November 2022 (14:14:51 CET)

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Preprint ARTICLE | doi:10.20944/preprints202211.0533.v1

Bone-To-Implant Contact At 4- And 6-Week Healing Stages in Implants Having Either Machined, SLA Medium Roughness or Nanostructured Calcium-Incorporated Surface.

Chistian Makary, Abdallah Menhall, Pierre Lahoud, Hyun-Wook An, Kwang-Bum Park, Tonino Trainiu

Subject: Materials Science, Other Keywords: Nano surfaces; Early bone formation; Implant surface; histomorphometry; osseointegration.

Online: 29 November 2022 (03:57:25 CET)

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Preprint ARTICLE | doi:10.20944/preprints202211.0527.v1

Innovative Variation in Morphological Characteristics of Carbon Nanowall Grown on Molybdenum Disulfide Interlayer

Chulsoo Kim, Kangmin Kim, Seokhun Kwon, Hyunil Kang, Byungyou Hong, Wonseok Choi

Subject: Materials Science, General Materials Science Keywords: Carbon nanowall; Molybdenum disulfide; Interlayer; Morphological characteristics

Online: 29 November 2022 (03:09:25 CET)

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Preprint ARTICLE | doi:10.20944/preprints202211.0524.v1

Preparation of Heterojunctions Based on Cs₃Bi₂Br₉ Nanocrystals and G-C₃N₄ Nanosheets for Photocatalytic Hydrogen Evolution

María Medina-Llamas, Andrea Speltini, Antonella Profumo, Francesca Panzarea, Antonella Milella, Francesco Fracassi, Andrea Listorti, Lorenzo Malavasi

Subject: Materials Science, General Materials Science Keywords: lead-free perovskites; hydrogen evolution; photocatalysis, carbon nitride, perovskites, ball milling

Online: 29 November 2022 (02:54:05 CET)

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Preprint ARTICLE | doi:10.20944/preprints202211.0503.v1

Who is More Likely to Complete the Appointments, and What Factors Determine the Appointment Wait Time?

Wafa K. Alnakhi, Heba Mamdouh, Hamid Y. Hussain, Mohamed S. Mudawi, Gamal M. Ibrahim, Amal J. Al Balushi, Noora Al Zarooni, Abdulsalam Elnaeem, Nabil Natafgi

Subject: Materials Science, Other Keywords: Telehealth; telemedicine; Dubai Health Authority (DHA); wait time; turn-around time; appointment completion

Online: 28 November 2022 (08:24:23 CET)

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Preprint REVIEW | doi:10.20944/preprints202211.0494.v1

Advances in Sno₂-Based Nanomaterials for Photocatalysis, Supercapacitors, and Antibacterial Activities

Naveen Chandra Joshi, Rajesh Singh, Sanjay Upadhyay, Niraj Kumar, Anita Gehlot, Chetan S, Chander Prakash, Kuldeep Kumar Saxena, Dhanesh G. Mohan, Jacek Tomków

Subject: Materials Science, Nanotechnology Keywords: SnO2 NPs and their nanocomposites; Photocatalysis; Supercapacitors; Antibacterial activities

Online: 28 November 2022 (04:43:28 CET)

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Preprint ARTICLE | doi:10.20944/preprints202211.0492.v1

Selective Adsorption of Cesium by Supramolecular Materials Loaded with Different Carriers

Su Jia Tian, Xu Lei, Zhang An Yun

Subject: Materials Science, General Materials Science Keywords: calixcrown; carrier; cesium; adsorption; comparision

Online: 28 November 2022 (04:19:27 CET)

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Preprint ARTICLE | doi:10.20944/preprints202211.0475.v1

The Local Coordination Effects on the Reactivity and Speciation of Active Sites in Graphene-Embedded Single-Atom Catalysts Over Wide pH and Potential Range

Milica S. Ritopečki, Ana S. Dobrota, Natalia V. Skorodumova, Igor A. Pašti

Subject: Materials Science, Nanotechnology Keywords: single-atom catalysts; graphene; activity; reactivity; stability; Pourbaix plots

Online: 25 November 2022 (10:06:33 CET)

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Preprint ARTICLE | doi:10.20944/preprints202211.0449.v1

Kinetics of Dimethoate, Malathion, and Chlorpyrifos Adsorption on Cellulose-derived Activated Carbons – Linking Performance to the Physicochemical Properties

Tamara Lazarević-Pašti, Ana Jocić, Vedran Milanković, Tamara Tasić, Nebojša Potkonjak, Stefan Breitenbach, Christoph Unterweger, Christian Fürst, Igor A. Pašti

Subject: Materials Science, General Materials Science Keywords: organophosphate pesticide; removal; adsorption; kinetics; textural properties

Online: 24 November 2022 (03:19:52 CET)

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Preprint ARTICLE | doi:10.20944/preprints202211.0411.v1

Fiber Aggregation in Nanocomposites: Aggregation Degree and Its Linear Relation with Percolation Threshold

Baorang Cui, Fei Pan, Bin Ding, Feng Zhang, Yong Ma, Yuli Chen

Subject: Materials Science, Nanotechnology Keywords: nanocomposites; degree of aggregation; analytical modelling; percolation threshold

Online: 22 November 2022 (07:57:34 CET)

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MATERIALS SCIENCE