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Preprint REVIEW | doi:10.20944/preprints201704.0137.v1

Kinetic Modelling at the Basis of Process Simulation for Heterogeneous Catalytic Process Design

Antonio Tripodi, Matteo Compagnoni, Rocco Martinazzo, Gianguido Ramis, Ilenia Rossetti

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: process simulation; kinetic modelling; ammonia; methanol; bioethanol; steam reforming; ethylene

Online: 21 April 2017 (10:00:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201710.0194.v1

LC-MS/MS Tandem Mass Spectrometry for Analysis of Phenolic Compounds and Pentacyclic Triterpenes in Antifungal Extracts of Terminalia brownii (Fresen)

Enass Y. A. Salih, Pia Fyhrquist, Ashraf M. A. Abdalla, Abdelazim Y. Abdelgadir, Markku Kanninen, Marketta Sipi, Olavi Luukkanen, Mustafa K. M. Fahmi, Mai H. Elamin, Hiba A. Ali

Subject: Chemistry And Materials Science, Medicinal Chemistry Keywords: Africa; Terminalia brownii; antifungal extracts; Aspergillus, Nattrassia, Fusarium; triterpenoids; flavonoids; ellagitannins; stilbenes

Online: 31 October 2017 (09:54:35 CET)

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Decoctions, macerations and fumigations of the stem bark and wood of Terminalia brownii Fresen. are used in traditional medicine for fungal infections and as pesticides on field crops and in traditional granaries in Sudan. In addition, T. brownii is commonly used for protecting wooden houses and furniture. Therefore, using agar disc diffusion and macrodilution methods, eight extracts of various polarities from the stem wood and bark were screened for their growth inhibitory effects against filamentous fungi commonly causing fruit, vegetable and grain decay, as well as infections in the immunocompromised host. Ethyl acetate extracts of the stem wood and bark gave the best antifungal activities, with MIC values of 250 µg/ml against Nattrassia mangiferae and Fusarium verticillioides, and 500 µg/ml against Aspergillus niger and Aspergillus flavus. Aqueous extracts gave almost as potent effects as the ethyl acetate extracts against the Aspergillus and Fusarium strains, and were slightly more active than the ethyl acetate extracts against Nattrassia mangiferae. Thin layer chromatography, RP-HPLC-DAD and tandem mass spectrometry (LC-MS/MS), were employed to identify the chemical constituents in the ethyl acetate fractions of the stem bark and wood. The stem bark and wood were found to have a similar qualitative composition of polyphenols and triterpenoids, but differed quantitatively from each other. The stilbene derivatives, cis- (3) and trans- (4) resveratrol-3-O-β-galloylglucoside, were identified for the first time in T. brownii. Moreover, methyl-(S)-flavogallonate (5), quercetin-7-β-O-di-glucoside (8), quercetin-7-O-galloyl-glucoside (10), naringenin-4`-methoxy-7-pyranoside (7), 5,6-dihydroxy-3`,4`,7-tri-methoxy flavone (12), gallagic acid dilactone (terminalin) (6), a corilagin derivative (9) and two oleanane type triterpenoids (1) and (2) were characterized. Our results justify the traditional uses of macerations and decoctions of T. brownii stem wood and bark for crop and wood protection and demonstrate that standardized extracts could have uses for the eco-friendly control of plant pathogenic fungi in African agroforestry systems. Likewise, our results justify the traditional uses of these preparations for the treatment of skin infections caused by filamentous fungi.

Preprint REVIEW | doi:10.20944/preprints201804.0187.v1

Salts of Therapeutic Agents: Chemical, Physicochemical and Biological Considerations

Deepak Gupta, Deepak Bhatia, Vivek Dave, Vijaykumar Sutariya, Sheeba Varghese Gupta

Subject: Chemistry And Materials Science, Other Keywords: chemistry; salt; water solubility; routes of administration; physicochemical; stability; degradation

Online: 16 April 2018 (05:29:24 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202003.0267.v1

Binding Mechanism of Remdesivir to SARS-CoV-2 RNA Dependent RNA Polymerase

Leili Zhang, Ruhong Zhou

Subject: Chemistry And Materials Science, Physical Chemistry Keywords: COVID-19; SARS-CoV-2; RNA-dependent RNA polymerase (RdRp); remdesivir; homology model; molecular dynamics; free energy perturbation

Online: 17 March 2020 (04:07:15 CET)

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Preprint REVIEW | doi:10.20944/preprints201705.0115.v1

Metal Catalyzed Suzuki-Miyaura Cross-Coupling– Efficient Methodology for Synthesis the Natural and non-Natural biological active Molecules

Hira Israr, Shazia Kaousar, Nasir Rasool, Gulraiz Ahmad, Muhammad Nazirul Mubin Aziz, Muhammad Nadeem Akhtar, Noorjahan Banu Alitheen

Subject: Chemistry And Materials Science, Medicinal Chemistry Keywords: Palladium; Suzuki cross coupling; natural product; non-natural product

Online: 15 May 2017 (18:30:52 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201802.0055.v1

Enthalpy and Free Energy of Formation of Diamido and Monoamido Phosphoric Acid

Neale R. Neelameggham

Subject: Chemistry And Materials Science, Inorganic And Nuclear Chemistry Keywords: amidophosphoric acid; diamidophosphate; prebiotic phosphoryl compound; phosphonitrogen glass; enthalpy; Gibbs Free energy; biomimetic nitrogen fixation

Online: 7 February 2018 (05:12:33 CET)

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Preprint ARTICLE | doi:10.20944/preprints201608.0099.v1

Thermal Analysis of Polyethylene Terephthalate (PET) –Coke Composites Prepared by Mechanical Alloying Technique

Debesh Devadutta Mishra

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: PET; Petroleum Coke; Mechanical Alloying; Thermal studies; XRD

Online: 9 August 2016 (14:22:43 CEST)

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Preprint REVIEW | doi:10.20944/preprints201909.0020.v1

Phytoremediation of Polluted Waterbodies with Aquatic plants: Recent Progress on Heavy Metal and Organic Pollutants

Enyoh Christian, Isiuku Beniah

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: chemical pollutants; chemometrics; constructed wetlands; hydroponics; macrophytes; models; toxicity; water pollution

Online: 2 September 2019 (09:45:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202010.0213.v1

The Sensory Evaluation and Mechanical Properties of Functional Gummy in the Malaysian Market

Mohd Muzamir Mahat, Awis Sukarni Mohmad Sabere, Saiful 'Arifin Shafiee, Mohd Azizi Nawawi, Hairul Hisham Hamzah, Muhammad Afiq Fikri Md Jamil, Nazreen Che Roslan, Mohamed Izzharif Abdul Halim, Muhd Fauzi Safian

Subject: Chemistry And Materials Science, Biomaterials Keywords: Food Analysis; Texture Profile Analysis; FTIR, Sensory Evaluation

Online: 12 October 2020 (07:57:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201812.0359.v1

Mechanical Behavior of Inconel 625 at Elevated Temperatures

Mauro M. de Oliveira, Antônio A. Couto, Gisele F. C. Almeida, Danieli A. P. Reis, Nelson B. de Lima, Renato Baldan

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: Inconel; high temperature; tensile test; creep; serrated; dynamic strain aging

Online: 31 December 2018 (09:41:56 CET)

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Preprint ARTICLE | doi:10.20944/preprints201809.0386.v1

Menaquinone 7 Stability of Formulations and Its Relationship with Purity Profile

Patrick Orlando, Sonia Silvestri, Fabio Marcheggiani, Ilenia Cirilli, Luca Tiano

Subject: Chemistry And Materials Science, Food Chemistry Keywords: menaquinone-7, stability, purity, food supplement

Online: 19 September 2018 (13:59:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201809.0115.v1

Detailed Modeling of the Direct Reduction of Iron Ore in a Shaft Furnace

Hamzeh Hamadeh, Olivier Mirgaux, Fabrice Patisson

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: ironmaking; direct reduction; iron ore; DRI; shaft furnace; mathematical model; heterogeneous kinetics; heat and mass transfer

Online: 6 September 2018 (12:14:01 CEST)

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Preprint REVIEW | doi:10.20944/preprints201908.0316.v1

Airborne Microplastics: A Review Study on Method for Analysis, Occurrence, Movement and Risks

Enyoh Christian Ebere, Verla Andrew Wirnkor, Verla Evelyn Ngozi, Ibe Francis Chizoruo, Amaobi Collins Emeka

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: air pollution; dermal route; fibers; health risk; inhalation; micropollutants

Online: 30 August 2019 (05:08:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201812.0226.v1

The Effect of Heat Treatments on the Fatigue Strength of H13 Hot Work Tool Steel

Ruhi Yeşildal

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: Fatigue, heat treatment, hot-work tool steel

Online: 18 December 2018 (16:37:32 CET)

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Preprint REVIEW | doi:10.20944/preprints201801.0166.v1

Hybrid Carbon-based Clathrates for Energy Storage

Kwai S. Chan

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: carbon clathrates; hybrid carbon-silicon clathrates; hybrid carbon-nitrogen clathrates; electrode materials; hydrogen storage materials; energy storage materials; hard materials

Online: 18 January 2018 (05:08:03 CET)

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Preprint ARTICLE | doi:10.20944/preprints202008.0325.v1

Structural Characterization of Graphite Nanoplatelets Synthesized from Graphite Flakes

HANI MANSSOR ALBETRAN

Subject: Chemistry And Materials Science, Nanotechnology Keywords: Carbon; Crystal structure; Graphene; Graphite; Nanoplatelet.

Online: 14 August 2020 (11:58:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201610.0126.v1

Comments about Rietveld Analysis and Tolerance Factor: Y Doped BaTiO₃

I. A. Lira-Hernández, F. R. Barrientos-Hernández, M. Pérez-Labra, A. M. García-Mercado, J. A. Romero-Serrano

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: A. Ceramics; A. Oxides; C. X-ray diffraction; D. Crystal structure; D. Microstructure

Online: 28 October 2016 (08:09:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201712.0082.v1

Chromatographic and Spectroscopic Identification and Recognition of Natural Dyes, Uncommon Dyestuff Components and Mordants Found in the 16th Century Carpet

Olga Otłowska, Marek Ślebioda, Agata Kot-Wasik, Jakub Karczewski, Magdalena Śliwka-Kaszyńska

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: natural dyes; flavonoids; flavone glycosides; anthraquinones; extraction procedure; liquid chromatography mass spectrometry

Online: 13 December 2017 (17:58:00 CET)

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Working Paper ARTICLE

Biological Activity and Nanostructuration of Fe3O4-Ag/Polyethylene Nanocomposites

Phuong Nguyen-Tri

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: polyethylene; nanocomposites; silver nanoparticles; Fe3O4-Ag hybrid nanoparticles; antibacterial activity

Online: 19 March 2019 (07:54:54 CET)

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Preprint ARTICLE | doi:10.20944/preprints201705.0078.v1

Chemical Characterization of Oils and Fats from Amazonian Fruits by ¹H NMR

Ricardo Carvalho dos Santos, Antonio Alves de Melo Filho, Edvan Alves Chagas, Jacqueline Aparecida Takahashi, Ismael Fernández Montero, Luciana Chaves Holanda, Pedro Rômulo Estevam Ribeiro, Gabriel Franco dos Santos, Ana Cristina Gonçalves Reis de Melo

Subject: Chemistry And Materials Science, Food Chemistry Keywords: Euterpe oleracea; Astrocaryum acaule; Mauritia aculeata; Mauritia flexuosa; PUFA; MUFA

Online: 9 May 2017 (05:05:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201808.0145.v1

A New All-Solid-State Lithium-Ion Battery Working without a Separator in an Electrolyte

Seonggyu Cho, Shinho Kim, Wonho Kim, Seok Kim, Sungsook Ahn

Subject: Chemistry And Materials Science, Biomaterials Keywords: secondary lithium ion battery; all-solid-state battery; solid polymer electrolyte; succinonitrile (SN); lithium(trifluoromethanesulfonyl)imide (LiTFSI)

Online: 7 August 2018 (13:18:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201803.0102.v2

Increasing of Strength of FDM (FFF) 3D Printed Parts by Influencing on Temperature-Related Parameters of the Process

Vladimir E. Kuznetsov, Alexey N. Solonin, Azamat G. Tavitov, Oleg D. Urzhumtsev, Anna H. Vakulik

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: additive manufacturing; desktop 3D printing; fused deposition modeling; fused filament fabrication; polylactic acid; anisotropy; interlayer bonds; mechanical strength; digital fabrication

Online: 9 April 2018 (10:33:56 CEST)

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Preprint REVIEW | doi:10.3390/sci1020037

Thermoelectric Materials—Strategies for Improving Device Performance and Its Medical Applications

Palanisamy MohanKumar, Veluru Jagadeesh Babu, Arjun Subramanian, Aishwarya Bandla, Nitish Thakor, Seeram Ramakrishna, He Wei

Subject: Chemistry And Materials Science, Electronic, Optical And Magnetic Materials Keywords: thermoelectric; figure-of-merit; Peltier; Seebeck; thermoelectric generator; cooling

Online: 9 July 2019 (00:00:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201802.0045.v1

New Solvent for Polyamide 66 and its use for Preparing Single-Polymer Composite Coated-Fabric

Mostafa Jabbari, Parviz Rashidi Ranjbar, mikael skrifvars, Dan Åkesson, Mohammad J. Taherzadeh

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: Polyamide solvent, composite, coated-fabric, Nylon, single-polymer composite, all-polyamide composite coated-fabric

Online: 5 February 2018 (16:19:09 CET)

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Preprint ARTICLE | doi:10.20944/preprints201612.0007.v1

Modeling and Kinetics of Bioconversion and Chemical Properties (Wine and Vinegar) from Banana Pulp By-Products

Cyntia Akemi Tanaka, Flávia Imanishi Ruzon, Lucas Caldeirão Rodrigues Miranda, Diego Galvan, Wilma Aparecida Spinosa, Raúl Jorge Hernan Castro-Goméz

Subject: Chemistry And Materials Science, Food Chemistry Keywords: acetic fermentation; alcoholic fermentation; submerged process; volatile compounds; acetic bacteria

Online: 1 December 2016 (10:47:37 CET)

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Preprint ARTICLE | doi:10.20944/preprints202105.0493.v1

Pumice as a Novel Nature Heterogeneous Catalyst for Synthesis of 3,4-dihydropyrimidine-2-(1H)-Ones/Thiones via Biginelli Reaction under Solvent-free Conditions

Lamya H. Al-Wahaibi, Antar A. Abdelhamid, Sayed A. Saber, Nadia A.A. Elkanzi, Ali M. Ali

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: One pot reaction; 3,4- Dihydropyrimidin-2(1H) ones / thiones and Pumice

Online: 20 May 2021 (13:38:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201805.0179.v1

Assessment of Green Solvents and Extraction Methods for Biopesticide Preparation from Neem Azadirachta indica Leaves against Oriental Fruit Fly Bactrocera dorsalis (Hendel)

Danila S. Paragas, Kathlia Cruz, Elaida R. Fiegalan

Subject: Chemistry And Materials Science, Applied Chemistry Keywords: rice wash; vinegar; rice wine; Soxhlet; fermentation

Online: 11 May 2018 (09:04:45 CEST)

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Working Paper REVIEW

A Comprehensive Review on Bast Fiber Retting Process for Optimal Performance in Fibers Reinforced Polymer Composites

Ching Hao Lee, Khalina Abdan, Seng Hua Lee, Ming Liu

Subject: Chemistry And Materials Science, Biomaterials Keywords: enzyme; bast fibers; enzymatic retting; characterizations

Online: 26 November 2019 (10:27:02 CET)

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Preprint ARTICLE | doi:10.20944/preprints201704.0010.v1

Impact of the Fused Deposition (FDM) Printing Process on Polylactic Acid (PLA) Chemistry and Structure

Michael Cuiffo, Jeffrey Snyder, Alicia Elliott, Nicholas Romero, Sandhiya Kannan, Gary Halada

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: PLA; fused deposition modeling (FDM); surface characterization; vibrational spectroscopy; laser confocal microscopy; X-ray photoelectron spectroscopy

Online: 3 April 2017 (17:34:40 CEST)

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Working Paper REVIEW

Review on Synthesis and Applications of Zinc Oxide Nanoparticles

Darshita MN, Richa Sood

Subject: Chemistry And Materials Science, Biomaterials Keywords: Zinc nanoparticles; Plant extract; Green Synthesis; Characterization; Mechanism; Applications

Online: 28 May 2021 (09:58:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202007.0076.v1

Current Challenges of Cold Brew Coffee – Roasting, Extraction, Flavor Profile, Contamination, and Food Safety

Raven Kwok, Kenny Lee Wee Ting, Steffen Schwarz, Linda Claassen, Dirk W. Lachenmeier

Subject: Chemistry And Materials Science, Food Chemistry Keywords: coffee; cold brew; nitro cold brew; roasting; extraction; hygiene; risk assessment; product quality

Online: 5 July 2020 (14:53:27 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201801.0028.v1

Development and Characterization of Cross-Linked Poly(acrylic acid) Hydrogel Containing Drug by Radiation-Based Techniques

Jin-Oh Jeong, Jae Baik, Sung-Jun An, Sung-In Jeong, Jae-Young Lee, Youn-Mook Lim, Jong-Seok Park

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: poly(acrylic acid); metronidazole; hydrogel; crosslinking; radiation

Online: 5 January 2018 (04:49:18 CET)

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Preprint ARTICLE | doi:10.20944/preprints201908.0293.v1

Qualitative Phytochemical Screening and Antioxidant Activities from Three Different Citrus Leaves (Rutaceae)

Nur Irdeena. Z., Norhayati. Y., Syara K., Nurul Huda A.W.

Subject: Chemistry And Materials Science, Organic Chemistry Keywords: Citrus aurantifolia; Citrus hystrix; Citrus microcarpa; phytochemical; antioxidant properties

Online: 28 August 2019 (11:16:06 CEST)

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Working Paper REVIEW

Fighting the SARS CoV-2 (COVID-19) Pandemic with Soap

Narendra Kumar Chaudhary, Nabina Chaudhary, Manis Dahal, Biswash Guragain, Sumie Rai, Rahul Chaudhary, K.M. Sachin, Reena Lamichhane-Khadka, Ajaya Bhattarai

Subject: Chemistry And Materials Science, Applied Chemistry Keywords: COVID-19; SARS-Cov-2; soap; hand washing; WHO

Online: 7 May 2020 (13:48:05 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202002.0438.v1

Simeprevir, Potential Candidate to Repurpose for Coronavirus Infection: Virtual Screening and Molecular Docking Study

Faezeh Sadat Hosseini, Massoud Amanlou

Subject: Chemistry And Materials Science, Medicinal Chemistry Keywords: COVID-19; Simeprevir; Protease inhibitor; Virtual screening; Docking

Online: 28 February 2020 (13:14:38 CET)

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Preprint ARTICLE | doi:10.20944/preprints201909.0335.v1

Synthesis Polymer Styrene Butadiene Hybrid Latex with Laponite Organoclay as Filler via Emulsion Polymerization Technique for Application in Paper Coating

Bambang Soegijono, Johannes Chanra, Zhongwu Zheng, Puke Mi

Subject: Chemistry And Materials Science, Nanotechnology Keywords: polymer hybrid latex; styrene butadiene; emulsion polymerization; printing properties; paper coating

Online: 30 September 2019 (03:17:14 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201810.0081.v1

Comparison of Cohesive Models in EDEM and LIGGGHTS for Simulating Powder Compaction

Cristina Ramirez-Aragón, Joaquín Ordieres-Meré, Fernando Alba-Elías, Ana González-Marcos

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: Powder compaction; Discrete element method (DEM); Cohesive contact models; LIGGGHTS; EDEM

Online: 4 October 2018 (15:02:44 CEST)

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Preprint REVIEW | doi:10.20944/preprints201703.0072.v1

Review of Antibacterial Activity of Titanium-based Implants Surfaces Fabricated by Micro-arc Oxidation

Xiaojing He, Xiangyu Zhang, Xin Wang, Lin Qin

Subject: Chemistry And Materials Science, Biomaterials Keywords: micro-arc oxidation; antibacterial ability; Ag; Cu; Zn

Online: 14 March 2017 (07:49:40 CET)

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Preprint REVIEW | doi:10.3390/sci1010031

LC-NMR for Natural Products Analysis: A Journey from an Academic Curiosity to a Robust Analytical Tool

Tesfay Gebretsadik, Wolfgang Linert, Madhu Thomas, Tarekegn Berhanu, Russell Frew

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: separation technique; spectroscopic technique; hyphenated techniques; LC-NMR; natural products

Online: 14 June 2019 (00:00:00 CEST)

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Preprint REVIEW | doi:10.20944/preprints201608.0036.v1

Bioresponsive Hydrogels: Chemical Strategies and Perspectives in Tissue Engineering

Antonella Sgambato, Laura Cipolla, Laura Russo

Subject: Chemistry And Materials Science, Organic Chemistry Keywords: hydrogels; tissue engineering; bioconjugation

Online: 4 August 2016 (11:00:19 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201610.0006.v1

Radiation Shielding Property of Concrete Using Electric Arc Furnace Oxidizing Slag Aggregate

Han-Seung Lee, Hee-Seob Lim, Jae-Seok Choi

Subject: Chemistry And Materials Science, Other Keywords: steel slag; electric arc furnace slag; magnetite; radiation shielding concrete; concrete; EAF; aggregate

Online: 4 October 2016 (09:28:42 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201608.0216.v1

Thermal Conductivity of Polymer Composites Filled with Nanofillers

Raj Kiran

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: polymer nanocomposites; thermal conductivity; finite element analysis; ABAQUS

Online: 27 August 2016 (09:57:54 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201608.0239.v1

Synthesis and Characterization of Dibutyltin Compounds with α-Amino Acids

Roberto Santos Barbiéri, Vilma Reis Terra, Allan Kardec Carlos Dias, Walclée De Carvalho Melo, Daniel Rodrigues Silva

Subject: Chemistry And Materials Science, Organic Chemistry Keywords: organotin compounds; dibutyltin compounds; tin α-amino acids compounds; thermal decomposition

Online: 31 August 2016 (10:43:02 CEST)

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Preprint REVIEW | doi:10.20944/preprints201609.0015.v1

Current Research on the Speciation and Determination of Mercury in Different Environmental Matrices Using Various Analytical Instruments

Lakshmi Narayana Suvarapu, Sung-Ok Baek

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: speciation; mercury; analytical instruments; speciation; environmental samples

Online: 5 September 2016 (10:43:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201608.0013.v1

Potential Application of Modified α-Mangostin Xanthones from Garcinia mangostana as Antibacterial Agents in Food Packaging

Srinivasan Narasimhan, Shanmugam Maheshwaran, Palmiro Poltronieri, Imad A. Abu-Yousef, Amin F. Majdalawieh, Janarthanam Rethavathi, Prince Edwin Das

Subject: Chemistry And Materials Science, Medicinal Chemistry Keywords: α-mangostin; antibacterial; antifungal; food packaging; semi-synthetic modification

Online: 2 August 2016 (09:02:09 CEST)

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Preprint REVIEW | doi:10.20944/preprints201607.0057.v1

PARTICULATE MATTER: AN APPROACH TO AIR POLLUTION

Francis Olawale Abulude

Subject: Chemistry And Materials Science, Applied Chemistry Keywords: PM, pollution, environment, industrialization, health effects, standards

Online: 18 July 2016 (11:56:06 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201711.0065.v1

Betanin: A Bioeconomy Insight into a Valued Betacyanin

Rosaria Ciriminna, Carmelo Danzì, Alexandra Fidalgo, Giuseppe Timpanaro, Laura M. Ilharco, Mario Pagliaro

Subject: Chemistry And Materials Science, Food Chemistry Keywords: betanin; natural red; pigment; betalain; Opuntia; beet root

Online: 10 November 2017 (04:56:22 CET)

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Preprint REVIEW | doi:10.20944/preprints201908.0260.v1

Microplastic-Toxic Chemical Interaction: A Review Study on Quantified Levels, Mechanism and Implication

Verla Andrew Wirnkor, Enyoh Christian Ebere, Verla Evelyn Ngozi, Nwanorh Kieran Oharley

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: air pollution; micropollutants; plastic debris; risks; soil pollution; toxicity; water pollution

Online: 26 August 2019 (01:39:10 CEST)

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Preprint REVIEW | doi:10.20944/preprints201610.0009.v1

Chemical Variability and Biological Activities of Eucalyptus spp. Essential Oils

Luiz Claudio Almeida Barbosa, Claudinei Andrade Filomeno, Robson Ricardo Teixeira

Subject: Chemistry And Materials Science, Organic Chemistry Keywords: Essential(s) oils; monoterpenes; insecticidal activity; antimicrobial activity; acaricide activity; herbicidal activity

Online: 4 October 2016 (16:08:09 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201810.0249.v1

Determination of Nugget Size in Resistance Projection Welding by Means of Numerical Method and Comparison with Experimental Measurement

Danial Mohammad Rezaei, Behzad Heidarshenas, Fazel Baniasadi

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: resistance projection welding; nugget size; maximum failure load; welding parameter

Online: 12 October 2018 (03:55:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201609.0075.v1

Selective Desulfonylation of Oxidized Sulfur Compounds in Crude Oil by Alcohol-Mediated Nucleophilic Attack Studied by XANES and XRF Spectroscopy

Jonathan Rankin, Kyle Litz, Sarah Briggs, Trent McCaskill, Michael Scudder, Syed Khalid, Raman Budhani

Subject: Chemistry And Materials Science, Applied Chemistry Keywords: desulfurization; desulfonylation; petroleum

Online: 22 September 2016 (10:27:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201705.0008.v1

An Effective Surface Modification of Polyester Fabrics for Improving the Interfacial Deposition of Polypyrrole Layer

Zhenyun Zhao, Jing Zhou, Tao Fan, Lanqian Li, Zulan Liu, Yiping Liu, Ming Lu

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: polyester fabrics; surface modification; sulfuric acid; polypyrrole; deposition; conductivity

Online: 1 May 2017 (08:48:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201608.0128.v1

Synthesis of Polyaniline coated Graphene Oxide @ SrTiO3 Nanocube Nanocomposites for Enhanced Removal of Carcinogenic Dyes from Aqueous Solution

Syed Shahabuddin, Norazilawati Muhamad Sarih, Muhammad Afzal Kamboh, Hamid Rashidi Nodeh, Sharifah Mohamad

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: graphene oxide; polyaniline; nanocomposites; adsorbent; methylene blue; methyl orange

Online: 11 August 2016 (11:29:12 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201708.0057.v1

Procedures for the GMP-Compliant Production and Quality Control of [¹⁸F]PSMA-1007—A Next Generation Radiofluorinated Tracer for the Detection of Prostate Cancer

Jens Cardinale, René Martin, Yvonne Remde, Martin Schäfer, Antje Hienzsch, Sandra Hübner, Anna-Maria Zerges, Heike Marx, Ronny Hesse, Klaus Weber, Rene Smits, Alexander Hoepping, Marco Müller, Oliver C. Neels, Klaus Kopka

Subject: Chemistry And Materials Science, Medicinal Chemistry Keywords: [18F]PSMA-1007; fluorine-18; PSMA; automation; prostate cancer; PET

Online: 17 August 2017 (06:10:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201704.0131.v1

Polyurethane Foams for Thermal Insulation Uses Produced from Castor Oil and Crude Glycerol Biopolyols

Camila S. Carriço, Thaís Fraga, Vagner E. Carvalho, Vânya M. D. Pasa

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: polyurethane foams; castor oil; crude glycerol; biopolyols

Online: 20 April 2017 (04:27:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201902.0001.v2

Effects of Continuous Deep Fat Frying on the Physical and Chemical Properties of Assorted Brands of Edible Cooking Oils Sold in Metropolitan Kampala

Timothy Omara, Erisa Kigenyi

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: color; free fatty acids; iodine absorption value; paraanisidine value; peroxide value

Online: 6 February 2019 (06:36:41 CET)

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Preprint ARTICLE | doi:10.20944/preprints201804.0155.v1

Direct Exfoliation of g-C3N4 with Addition of NaOH for Enhanced Photocatalytic Cr(Ⅵ) Reduction

Yaping Guo, Jianyang Sun, Hui Chang, Xu Zhao

Subject: Chemistry And Materials Science, Physical Chemistry Keywords: g-C3N4; photocatalysis; NaOH; exfoliation; Cr(VI) reduction

Online: 11 April 2018 (14:29:45 CEST)

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Preprint REVIEW | doi:10.20944/preprints202112.0438.v1

X-Ray Diffraction Techniques for Mineral Characterization: A Review for Engineers of the Fundamentals, Applications, and Research Directions

Asif Ali, Yi Wai Chiang, Rafael M. Santos

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: X-ray diffraction; Mineral characterization; Crystal structure; Bragg’s law; Lattice parameters; Crystallography; Unit cell

Online: 27 December 2021 (15:53:09 CET)

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Preprint ARTICLE | doi:10.20944/preprints201701.0019.v1

The BCC/B2 Morphologies in AlxNiCoFeCr High-Entropy Alloys

Yue Ma, Beibei Jiang, Chunling Li, Qing Wang, Chuang Dong, Peter K Liaw, Fen Xu, Lixian Sun

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: high-entropy alloys; Al-Ni-Co-Fe-Cr alloys; microstructure; precipitation morphology; mechanical property

Online: 4 January 2017 (10:30:17 CET)

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Preprint ARTICLE | doi:10.20944/preprints202004.0334.v1

Molecular Docking and Molecular Dynamic Study of Two Viral Proteins Associated with SARS-CoV-2 with Ivermectin

Lenin Andres Gonzalez Paz, Carla A. Lossada, Luis S. Moncayo, Freddy Romero, J. L. Paz, Joan Vera-Villalobos, Aleivi E. Perez, Ernesto San-Blas, Ysaias J. Alvarado

Subject: Chemistry And Materials Science, Medicinal Chemistry Keywords: SARS-COV-2; folding/unfolding; antiparasitic; molecular docking; molecular dynamics; COVID-19; Ivermectin

Online: 19 April 2020 (06:56:09 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201705.0148.v1

Densities and Refractive Indices of Potassium Carbonate -Based Deep Eutectic Solvents with Dual Hydrogen Bond Donors at Several Temperatures (293.15 to 343.15 K)

Hosein Ghaedi, Muhammad Ayoub, Suriati Sufian, Azmi Mohd Shariff, Bhajan Lal

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: DES; TDES; salt; HBD; density; refractive index

Online: 19 May 2017 (16:06:15 CEST)

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Preprint REVIEW | doi:10.20944/preprints201808.0280.v1

Incorporation of Conductive Materials into Hydrogels for Tissue Engineering Applications

Ji Hong Min, Won-Gun Koh

Subject: Chemistry And Materials Science, Biomaterials Keywords: conductive hydrogel; tissue engineering; biomaterials; physical and electrical properties

Online: 15 August 2018 (16:12:51 CEST)

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Preprint REVIEW | doi:10.20944/preprints202108.0383.v1

Carotenoids in Bacteria: Biosynthesis, Extraction, Characterization and Applications

Gerson-Dirceu López, Gerardo Álvarez-Rivera, Chiara Carazzone, Elena Ibañez, Chad Leidy, Alejandro Cifuentes

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: Bacterial carotenoids; Cell disruption; HPLC separation; MS analysis; Food and textile applications

Online: 18 August 2021 (14:09:35 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints201610.0106.v1

A Validated HPLC Method for the Determination of Vanillyl Butyl Ether in Cosmetic Preparations

Antonio Alberola, Francisco Trigo, Joaquin Melendez, Gema Muedra

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: vanillyl butyl ether; HPLC; method validation; cosmetic product

Online: 25 October 2016 (09:43:18 CEST)

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Preprint REVIEW | doi:10.20944/preprints201808.0032.v1

Physiological Effects of Caffeine and Its Congeners Present in Tea and Coffee Beverages

Irfana Iqbal, Mohammad Aftab, Abdel-Majeed Safer, Mohan Menon, Mohammad Afzal

Subject: Chemistry And Materials Science, Medicinal Chemistry Keywords: caffeine; methylxanthine; chlorogenic acid; caffeic acid; inflammation; antimutagen; anticancer; antioxidant

Online: 2 August 2018 (05:14:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201712.0167.v1

Epoxidized Methyl Esters and Triglycerides of Vegetable Oils Unsaturated Fatty Acids as New Reagents for the Preparation of Emulsifiers Based on Glycerol and Its Oligomers

Khidmet Shikhaliev, Nadezhda Stolpovskaya, Michael Krysin, Anna Zorina, Denis Lyapun, Fedor Zubkov

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: vegetable oils; emulsifiers; triglycerides; FAME; epoxidized fatty acids; glycerol; polyglycerol; PGPR; renewable raw materials

Online: 25 December 2017 (07:32:07 CET)

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Preprint ARTICLE | doi:10.20944/preprints202105.0773.v1

Fermentation Dynamics of Ethiopian Traditional Beer (Tella) As Influenced by Substitution of Gesho (Rhamnus prinoides) With Moringa Stenopetala as Innovation for Nutrition

Ajanw Maru Birhanu, Tadesse Fikre Teferra, Tesfu Bekele lema

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: Ethnic beer; borde; shamita; keribo; korefe; indigenous drinks; fermented beverages; probiotics; Farsoo; moringa

Online: 31 May 2021 (12:50:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201703.0231.v1

China's Copper Demand Forecasting Based on System Dynamics Model

Jianbo Yang, Xin Li, Qunyi Liu

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: copper resources; demand forecasting; system dynamics model; sustainability development

Online: 31 March 2017 (10:50:56 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201702.0013.v1

Morphological, Structural and Optical Characterization of Bottom-Up Growth of Ag-WO₃ Core-Shell Nano-Cube Heterostructures

Muhammad A. Imam, Nitin Chopra

Subject: Chemistry And Materials Science, Nanotechnology Keywords: nano-cube; heterostructures; bottom-up growth; electron microscopy; bandgap; Ag-WO3

Online: 4 February 2017 (09:23:00 CET)

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Preprint REVIEW | doi:10.20944/preprints201609.0092.v1

A Review of PMMA Bone Cement and Intra-Cardiac Embolism

Puneeth Shridhar, Yanfei Chen, Ramzi Khalil, Anton Plakseyhuk, Sung Kwon Cho, Bryan Tillman, Prashant N. Kumta, Youngjae Chun

Subject: Chemistry And Materials Science, Biomaterials Keywords: PMMA; bone cement; cardiac embolism; cement leakage; viscosity

Online: 26 September 2016 (10:34:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201611.0021.v1

Molecularly Imprinted Quartz Crystal Microbalance Sensor (QCM) for Bilirubin Detection

Çiğdem Çiçek, Fatma Yılmaz, Erdoğan Özgür, Handan Yavuz, Adil Denizli

Subject: Chemistry And Materials Science, Other Keywords: molecular imprinting technique; bilirubin; QCM; PHEMA; nanosensor

Online: 2 November 2016 (17:34:43 CET)

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Preprint ARTICLE | doi:10.20944/preprints201610.0099.v1

Band Gap Tuning in 2D Layered Materials by Angular Rotation

Javier Polanco-González, Jesús Alfredo Carranco-Rodríguez, José Luis Enríquez-Carrejo, Pierre Giovanni Mani-González, José Manuel Domínguez-Esquivel, Manuel Ramos

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: Moiré patterns; MoS2; Graphene; WS2; WSe2; HRTEM

Online: 24 October 2016 (05:03:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201710.0090.v1

Influence of the Salt Bath Agitation and Austempering Temperature on the Microstructure of Austempered Ductile Iron

Nikša Čatipović, Dražen Živković, Zvonimir Dadić, Marin Viceić

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: austempered ductile iron; austempering parameters; microstructure; mechanical properties; salt bath agitation

Online: 13 October 2017 (15:44:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201609.0110.v1

Hydrogen Generation from Catalytic Steam Reforming Bio-Oil Model Compound—Acetic Acid Employing Ni/attapulgite Catalysts Prepared with Different Preparation Methods

Yishuang Wang, Mingqiang Chen, Tian Liang, Jie Yang, Zhonglian Yang, Shaomin Liu

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: hydrogen production; steam reforming; Ni/attapulgite; catalysts deactivation; agglomeration and sintering

Online: 28 September 2016 (10:14:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201609.0072.v1

Electrolyte Additive Concentration for Maximum Energy Storage in Lead-Acid Batteries

A. Paglietti

Subject: Chemistry And Materials Science, Electrochemistry Keywords: Pb-acid batteries, electrolyte additives, battery energy capacity, electrolyte additive concentration

Online: 20 September 2016 (15:39:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201904.0263.v1

Macromolecular Modeling and Design in Rosetta: New Methods and Frameworks

Julia Koehler Leman, Brian D Weitzner, Steven M Lewis, RosettaCommons Consortium, Richard Bonneau

Subject: Chemistry And Materials Science, Theoretical Chemistry Keywords: structure prediction; Rosetta; computational modeling; protein design

Online: 24 April 2019 (10:16:38 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201608.0119.v1

A Novel Series of Thiazoles and 1,3,4-Thiadiazoles Bearing Thiazole Moiety as Anticancer Agents: Synthesis, Spectral Studies, Biological Evaluation and Structure Activity relationship

Sobhi M. Gomha, Nabila A. Kheder, Mohamad R. Abdelaziz, Yahia Nasser Mabkhot

Subject: Chemistry And Materials Science, Medicinal Chemistry Keywords: thiazoles; thiadiazoles; hydrazonoyl chlorides; anticancer activity; structure activity relationship

Online: 11 August 2016 (11:05:21 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201811.0182.v1

Effect of PWHT Temperature and Time on Hardness and Microstructure of 410NiMo Weld Metal

Uğur Özdemir, Selçuk Keskinkılıç, Filiz K. Acar, Fikret Kabakci, Mustafa Acarer

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: 410NiMo, all weld metal, heat treatment, hardness, microstructure

Online: 7 November 2018 (16:24:42 CET)

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Preprint ARTICLE | doi:10.20944/preprints201807.0313.v1

Identification of volatile compounds and selection of discriminant markers for elephant dung coffee using static headspace gas chromatography–mass spectrometry and chemometrics

Poowadol Thammarat, Chadin Kulsing, Kanet Wongravee, Natchanun Leepipatpiboon, Thumnoon Nhujak

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: elephant dung coffee; volatile compound; discriminant marker; SHS GC–MS; chemometrics; coffee authentication

Online: 17 July 2018 (15:02:03 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201804.0036.v1

Degradation of Methylene Blue Dye in the Presence of Visible Light Using SiO₂@α-Fe₂O₃ Nanocomposites Deposited on SnS₂ Flowers

Sridharan Balu, Kasimayan Uma, Guan-Ting Pan, Thomas C.-K. Yang, Sayee Kannan Ramaraj

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: photocatalyst; flower-like SnS2; nanocomposites; visible light; methylene blue

Online: 3 April 2018 (10:53:52 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201803.0091.v1

A Breakthrough in Water Purification Using an Oligodynamic Metal and Moringa Oleifera Seed

Alakaparampil Joseph Varkey

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: water purification, oligodynamic metal, moringa oleifera seed, copper

Online: 12 March 2018 (15:20:37 CET)

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Preprint ARTICLE | doi:10.20944/preprints201703.0187.v1

Fatigue Life Estimation of Medium-Carbon Steel with Different Surface Roughness

Changyou Li, Weibing Dai, Fei Duan, Yimin Zhang, David He

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: medium-carbon steel; fatigue life estimation; surface roughness

Online: 24 March 2017 (10:50:11 CET)

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Preprint ARTICLE | doi:10.20944/preprints201611.0071.v1

Effect of Anti Diabetic Drugs on Lipid Profile in Patients with Type 2 Diabetes Mellitus

Alaa H. Jawad, Zyad H. Al-Qaisi, Ammal E. Ibrahim, Zainab S. Hallab, Abdualbasit Graisa, Ahmed Al-Amiery, Emad Yousif

Subject: Chemistry And Materials Science, Medicinal Chemistry Keywords: diabetes mellitus; metformin; glibenclamide and lipid profile

Online: 14 November 2016 (07:14:00 CET)

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Preprint ARTICLE | doi:10.20944/preprints201807.0127.v1

Microstructure and Mechanical Properties of TiN/TiCN/TiC Multilayer Thin Films Deposited by Magnetron Sputtering

Abbas Razmi, Ruhi Yeşildal

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: magnetron sputtering; TiN/TiCN/TiC film; Cp-Ti; Ti6Al4V; adhesion; scratch; nanoindentation

Online: 9 July 2018 (10:41:21 CEST)

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Preprint REVIEW | doi:10.20944/preprints201711.0071.v1

On the Effectiveness of Zeolite-Based Catalysts in the CO₂ Recycling to DME: State of the Art and Perspectives

Enrico Catizzone, Giuseppe Bonura, Massimo Migliori, Francesco Frusteri, Girolamo Giordano

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: CO2 hydrogenation; dimethyl ether; low-carbon processes; thermodynamics; catalysis; zeolites

Online: 11 November 2017 (01:16:47 CET)

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Preprint ARTICLE | doi:10.20944/preprints201609.0125.v2

High Responsivity in GaN Ultraviolet Photodetector Achieved by Growing on a Periodic Trapezoid Column-Shape Patterned Sapphire Substrate

Kuan-Ting Liu, Shoou-Jinn Chang, Sean Wu

Subject: Chemistry And Materials Science, Other Keywords: GaN ultraviolet photodetector; periodic trapezoid column-shape patterned sapphire substrate; responsivity; UV-to-visible rejection ratio

Online: 18 October 2016 (08:19:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201608.0145.v1

Neuroprotective Effects of Methyl 3,4-Dihydroxybenzoate Against TBHP-Induced Oxidative Damage in SH-SY5Y Cells

Liang Cai, Li-Fang Wang, Jun-Ping Pan, Xiang-Nan Mi, Zheng Zhang, Hai-Ju Geng, Jia-Hui Wang, Song-Hui Hu, Wei Zhang, Qin Gao, Wu-Tian Wu, Huan-Min Luo

Subject: Chemistry And Materials Science, Medicinal Chemistry Keywords: methyl 3,4-dihydroxybenzoate; oxidative stress; apoptosis; neuroprotection; nuclear factor erythroid 2-related factor 2

Online: 15 August 2016 (10:42:05 CEST)

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Preprint REVIEW | doi:10.20944/preprints202111.0271.v1

Review On Progress of 7xxx Series Aluminum Alloy Materials

Yuxin Dai, Liangming Yan, Jianpeng Hao

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: 7xxx superhard aluminum; Heat treatment technological; Alloy microstructure; Future direction

Online: 15 November 2021 (19:14:37 CET)

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Preprint ARTICLE | doi:10.20944/preprints201611.0038.v1

Synthesis of Polyhydroxybutyrate Particles with Micro-to-Nanosized Structures and Application as Protective Coating for Packaging Papers

Vibhore Kumar Rastogi, Pieter Samyn

Subject: Chemistry And Materials Science, Biomaterials Keywords: polyhydroxybutyrate; nanofibrillated cellulose; paper coating; hydrophobicity

Online: 7 November 2016 (06:59:27 CET)

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Preprint ARTICLE | doi:10.20944/preprints201701.0085.v1

Fabric Phase Sorptive Extraction Explained

Abuzar Kabir, Rodolfo Mesa, Jessica Jurmain, Kenneth G. Furton

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: Fabric Phase Sorptive Extraction (FPSE); sol-gel; phenols; environmental pollution; sample preparation; microextraction

Online: 19 January 2017 (02:21:59 CET)

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Preprint ARTICLE | doi:10.20944/preprints201701.0112.v1

Effects of Potassium Titanate Whisker or Glass Fiber on Tribological and Mechanical Properties of PTFE/PEEK Blend

Xue Teng, Lefei Wen, Yunxia Lv, Wenge Tang, Xiaogang Zhao, Chunhai Chen

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: PEEK; blends; thermal stability; tribological properties; mechanical properties

Online: 25 January 2017 (10:03:49 CET)

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Preprint ARTICLE | doi:10.20944/preprints201608.0076.v1

Electrochemical Behavior and Determination of Chlorogenic Acid Based on Carbon Nanotubes Modified Screen-Printed Electrode

Xiao-Yan Ma, Hong-Qiao Yang, Hua-Bing Xiong, Xiao-Fen Li, Jing-Ting Gao, Yun-Tao Gao

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: Chlorogenic acid; screen-printed electrode; carbon nanotubes

Online: 8 August 2016 (12:07:57 CEST)

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Preprint REVIEW | doi:10.20944/preprints201807.0011.v1

Recent Advances in Poly(vinylidene fluoride) and Its Copolymers for Lithium-Ion Battery Separators

João C. Barbosa, José P. Dias, Senentxu Lanceros-Méndez, Carlos M. Costa

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: PVDF; copolymers; battery separator; lithium-ion batteries

Online: 2 July 2018 (12:20:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201810.0249.v2

Determination of Nugget Size in Resistance Projection Welding: Numerical Method with Experimental Measurements

Danial Mohammad Rezaei, Behzad Heidarshenas, Fazel Baniasadi

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: resistance projection welding; nugget size; maximum failure load; welding parameter

Online: 22 October 2018 (11:32:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202004.0079.v1

Identification of Compounds from Nigella Sativa as New Potential Inhibitors of 2019 Novel Coronasvirus (Covid-19): Molecular Docking Study

Salim Bouchentouf, Noureddine Missoum

Subject: Chemistry And Materials Science, Medicinal Chemistry Keywords: COVID-19; Nigella Sativa; 6LU7; 2GTB; molecular docking; MOE software

Online: 7 April 2020 (08:58:42 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201907.0055.v1

Effects of Time, Temperature, and Solvent Ratio on the Extraction of Non-Extractable Polyphenols with Anticancer Activity of Barhi Date Palm Kernels Extracts Using Response Surface Methodology

Israa Mahmud, Mohamed E. S. Mirghani, Faridah Yusof, Ma'an Al-khatib

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: Barhi date palm kernels (BDPK); non-extractable polyphenols (NEPP); anticancer activity; antioxidant activity; response surface methodology; optimisation.

Online: 3 July 2019 (09:23:01 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201708.0038.v1

Synthesis of Benzyl Acetate Catalyzed by Lipase Immobilized in Nontoxic Chitosan-Polyphosphate Beads

Francisco Felipe Maia da Silva, Ana D.Q. Melo, Telma L.G. Lemos, Francisco A. Dias Filho, Cleiton Sousa, Roberto Fernandez-Lafuente

Subject: Chemistry And Materials Science, Organic Chemistry Keywords: chitosan; polyphosphate; microspheres; immobilization; lipase; CALB

Online: 10 August 2017 (05:44:58 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints202103.0463.v1

Pyrometallurgy and Electrometallurgy of Rare Earths – Part A: Analysis of Metallothermic Reduction and its Variants

Muhammad Musaddique Ali Rafique

Subject: Chemistry And Materials Science, Biomaterials Keywords: metallothermy; thermodynamics; Ellingham diagrams; Nernst equation; Pourbaix (Eh-pH) diagrams; E-pO-2 diagrams

Online: 18 March 2021 (09:31:48 CET)

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Preprint REVIEW | doi:10.20944/preprints202004.0409.v1

Direct Ink Writing Technology (3D Printing) of Graphene-Based Ceramic Nanocomposites: A Review

Nestor Washington Solís Pinargote, Anton Smirnov, Nikita Peretyagin, Anton Seleznev, Pavel Peretyagin

Subject: Chemistry And Materials Science, Nanotechnology Keywords: additive manufacturing; graphene oxide; graphene-based paste; direct ink writing; ceramic nanocomposites

Online: 23 April 2020 (10:09:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201802.0180.v1

Organic Solvent Free Process to Fabricate High Performance Silicon and Graphite Composite Anode

Haiqing Xiao, Tianyue Zheng, Gao Liu

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: lithium-ion batteries, water-based binders; styrene-butadiene rubber (SBR); carboxymethyl cellulose (CMC); silicon; graphite; anode

Online: 27 February 2018 (11:07:11 CET)

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Chemistry and Materials Science