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Antioxidant and anti-inflammatory function of walnut green husk aqueous extract (WNGH-AE) on human hepatocellular carcinoma cells (HepG2) treated with t-BHP.
PLoS One
January 2025
Institute of Natural Antioxidants and Anti-Inflammation, Dali University, Dali, Yunnan, China.
Oxidative damage, oxidative inflammation, and a range of downstream diseases represent significant threats to human health. The application of natural antioxidants and anti-inflammatory agents can help prevent and mitigate these associated diseases. In this study, we aimed to investigate the effectiveness of walnut green husk (WNGH) as an antioxidant and anti-inflammatory agent in an in vitro setting.
View Article and Find Full Text PDFWeak Covalent Bonds and Mechanochemistry for Synergistic Self-Strengthening of Elastomers.
J Am Chem Soc
January 2025
State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Dalian University of Technology, West Campus, 2# Linggong Road, Dalian 116024, China.
The macroscopic properties of elastomers are intimately linked to their molecular reactivity and mechanisms. Here, we propose a new strategy for designing strengthening materials based on the synergy of weak covalent bonds and mechanochemistry. After mechanical treatment, the failure strength and toughness of the elastomer increased from 2.
View Article and Find Full Text PDFSelenium Nucleophilicity and Electrophilicity in the Intra- and Intermolecular SN2 Reactions of Selenenyl Sulfide Probes.
Chemistry
January 2025
University of Padova: Universita degli Studi di Padova, Dipartimento di Scienze Chimiche, Via Marzolo 1, 35131, Padova, ITALY.
Chalcogenide exchange reactions are an important class of bimolecular nucleophilic substitution reactions (SN2) involving sulfur and selenium species as nucleophile, central atom, and/or leaving group, which are fundamental throughout redox biology and metabolism. While thiol-disulfide exchange reactions have been deeply investigated, those involving selenium are less understood, especially with regards to the polarised selenenyl sulfides RSe-SR' even though the directed reactivity of selenenyl sulfides is biologically crucial for selenoenzymes such as thioredoxin reductase (TrxR) and glutathione peroxidase (GPx). Synthetic methods to create asymmetric selenenyl sulfides with high regiochemical purity only emerged over the last five years; this functional group has already demonstrated powerful applications to cell biology, through probes for molecular imaging (e.
View Article and Find Full Text PDFImpact of humidity on the adsorption and decomposition of mustard gas simulant on heteroatom-modified nanoporous carbon textiles.
J Hazard Mater
January 2025
Department of Chemistry and Biochemistry, The City College of New York, 160 Convent Ave., New York, NY 10031, United States. Electronic address:
Activated carbon textile (C-Text) was chemically modified to incorporate oxygen- (C-Text-O), nitrogen- (C-Text-ON), and/or sulfur- (C-Text-OS) containing surface functional groups, aiming to enhance their reactive adsorption capacity. The modified textiles were evaluated for their ability to detoxify 2-choloroethyl ethyl sulfide (CEES) in both vapor and liquid phases, under dry and humid conditions. The maximum amount of water adsorbed was directly affected by the surface area (R = 0.
View Article and Find Full Text PDFPhotocatalytic detoxification of a sulfur mustard simulant using donor-enhanced porphyrin-based covalent-organic frameworks.
Nanoscale
January 2025
Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory of Function Materials for Molecule & Structure Construction, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China.
Photocatalytic detoxification of sulfur mustards (, bis (2-chloroethyl) sulfide, SM) is an effective approach for protecting the ecological environment and human health. In order to fabricate COFs with high performance for the selective transformation of the SM simulant 2-chloroethyl ethyl sulfide (CEES) to nontoxic 2-chloroethyl ethyl sulfoxide (CEESO), three porphyrin-based COFs with different donor groups (R = H, OH, and OMe) were synthesized. Among these COFs, COF-OMe, which possesses the strongest electron-donating ability, demonstrated a faster and higher detoxification rate of CEES at various concentrations, achieving selective oxidation of CEES to non-toxic CEESO with 99.
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