Results 101 to 110 of about 1,309,791 (290)

Antioxidant and Pro-Oxidant Activities of Melatonin in the Presence of Copper and Polyphenols In Vitro and In Vivo

Cells, 2019
Melatonin is a well-documented antioxidant. Physicochemical analysis using the density functional theory suggests that melatonin is a copper chelating agent; however, experimental evidence is still in demand.
Jiajia Wang, Xiaoxiao Wang, Yufeng He, Lijie Jia, Chung S. Yang, Russel J. Reiter, Jinsong Zhang   +6 more
doaj   +1 more source

Multifunctional Hydroxyapatite Coated with Gallium Liquid Metal‐Based Silver Nanoparticles for Infection Prevention and Bone Regeneration

Advanced Functional Materials, EarlyView.
A multifunctional hydroxyapatite (HAp) coating integrated with silver‐gallium liquid metal nanoparticles (HAp‐Ag‐GaNPs) exhibits dual antibacterial and osteogenic properties. It effectively inhibits Gram‐positive and Gram‐negative bacteria, including resistant strains, while enhancing bone regeneration.
Ngoc Huu Nguyen, Pengfei Zhang, Fathima Shana Pattar Kadavan, Zhaoning Xu, Tien Thanh Nguyen, Wenshao Li, Manh Tuong Nguyen, Chung Kim Nguyen, Duy Quang Pham, Thi Giang Tuyet Pham, Andrew Hayles, Markos Negash Alemie, Jitraporn Vongsvivut, Vincent Chan, Stephen Peter Kidd, Yunpeng Zhao, Krasimir Vasilev, Vi Khanh Truong   +17 more
wiley   +1 more source

Iron Behaving Badly: Inappropriate Iron Chelation as a Major Contributor to the Aetiology of Vascular and Other Progressive Inflammatory and Degenerative Diseases [PDF]

arXiv, 2008
The production of peroxide and superoxide is an inevitable consequence of aerobic metabolism, and while these particular "reactive oxygen species" (ROSs) can exhibit a number of biological effects, they are not of themselves excessively reactive and thus they are not especially damaging at physiological concentrations.
arxiv  

Roulette‐Inspired Physical Unclonable Functions: Stochastic yet Deterministic Multi‐Bit Patterning through the Solutal Marangoni Effect

Advanced Functional Materials, EarlyView.
Geometric multi‐bit patterning based on dynamic wetting and dewetting phenomena creates roulette‐like Physical Unclonable Function (PUF) labels with stochastic yet deterministic properties. This method leverages the solutal‐Marangoni effect for high randomness while achieving deterministic multinary patterns through polygonal confinement of binary ...
Yeongin Cho, Jeongsu Pyeon, Hanhwi Jang, Gwangsik Mun, Jaimin Kang, Byong‐Guk Park, Geon Yeong Kim, Hyoungsoo Kim, Yeon Sik Jung   +8 more
wiley   +1 more source

Analysis of radical scavenging active components in the fermented mycelia of Ophiocordyceps formosana

Mycology, 2017
The rates of 1,1-diphenyl-2-picryhydrazyl (DPPH)-free radical scavenging and hydroxyl radical eliminating were employed as indexes to qualitatively and quantitatively analyse the radical scavenging activity of the extracts with different solvents from ...
Yang-mei Li, Wen-ming Cheng, Zi-fei Da, Fenglin Hu, Chun-ru Li   +4 more
doaj   +1 more source

Antioxidant activity of melatonin and glutathione interacting with hydroxyl- and superoxide anion radicals

The Ukrainian Biochemical Journal, 2017
Based on the analysis of the results obtained by quantum chemical modeling of interaction between reduced glutathione (GSH) and melatonin (MLT) molecules with oxygen radicals (•OH and • OOˉ) it was found that this interaction occured following the acid ...
T. Y. Kuznetsova, N. V. Solovyova, V. V. Solovyov, V. O. Kostenko   +3 more
doaj   +1 more source

Hydrophobic Deep Eutectic Solvent (DES) Design Enables Optimally Hydrated DES‐in‐Water Electrolytes for High‐Performance Bromine Redox‐Enhanced Energy Storage Systems

Advanced Functional Materials, EarlyView.
Faradaic charging with bromine redox chemistry shows promise for energy storage, yet its efficient use in aqueous electrolytes is hindered by water decomposition and polybromides' cross‐diffusion, leading to suboptimal cell performance. This study introduces a tetrabutylammonium bromide‐based hydrated deep eutectic electrolyte with optimized water ...
Tae Pyeong Eom, Gunwoo Lee, Young Hun Cho, Younjee Lim, Seung Joon Yoo   +4 more
wiley   +1 more source

A Strong and Water‐Retaining Biomass Adhesive Inspired by Tofu

Advanced Functional Materials, EarlyView.
Drawing inspiration from the formation mechanism of the traditional food tofu, a strong and water‐retaining adhesive is designed using the soybean meal (SM) oxidized by glucose oxidase (GOx) and calcium sulfate oligomer (CSO). This design strategy effectively addresses the conflicting requirements of water‐resistant bonding strength and water retention
Jiawei Shao, Qiumei Jing, Xinyi Li, Muhammad Wakil Shahzad, Shuaicheng Jiang, Xuehua Zhang, Shengbo Ge, Ben Bin Xu, Jianzhang Li   +8 more
wiley   +1 more source

Active Learning‐Driven Discovery of Sub‐2 Nm High‐Entropy Nanocatalysts for Alkaline Water Splitting

Advanced Functional Materials, EarlyView.
High‐entropy nanoparticles (HENPs) hold great promise for electrocatalysis, yet optimizing their compositions remains challenging. This study employs active learning and Bayesian Optimization to accelerate the discovery of octonary HENPs for hydrogen and oxygen evolution reactions.
Sakthivel Perumal, Da Bean Han, Thandapani Marimuthu, Taewaen Lim, Hyun Woo Kim, Junhyeok Seo   +5 more
wiley   +1 more source

Aspirin May Exert Its Antipyresis by Inhibiting the N-Methyl-D-aspartate Receptor-Dependent Hydroxyl Radical Pathways in the Hypothalamus

Journal of Pharmacological Sciences, 2007
Recent findings have suggested that the N-methyl-D-aspartate (NMDA) receptor-dependent hydroxyl radical pathway in the hypothalamus of rabbit brain may mediate the fever induced by lipopolysaccharide (LPS).
Ting-Yu Kao, Wu-Tein Huang, Ching-Ping Chang, Mao-Tsun Lin   +3 more
doaj