Results 21 to 30 of about 1,283 (174)

New Insights into the Cystine-Sulfite Reaction

Molecules, 2019
The mechanism by which cysteine-S-sulfate is formed from the reaction of sulfite with cystine in the absence of a dedicated oxidizing agent is investigated using high-resolution NMR.
Matteo Zecchini, Robert Lucas, Adam Le Gresley   +2 more
doaj   +1 more source

Geochemical and Photochemical Constraints on S[IV] Concentrations in Natural Waters on Prebiotic Earth

AGU Advances, 2023
Aqueous S[IV] species (HSO3−, SO32−) derived from volcanogenic atmospheric SO2 are important to planetary habitability through their roles in proposed origins‐of‐life chemistry and influence on atmospheric sulfur haze formation, but the early cycling of ...
Sukrit Ranjan, Khaled Abdelazim, Gabriella G. Lozano, Sangita Mandal, Cindy Y. Zhou, Corinna L. Kufner, Zoe R. Todd, Nita Sahai, Dimitar D. Sasselov   +8 more
doaj   +1 more source

Simple Flow-Based System with an In-Line Membrane Gas–Liquid Separation Unit and a Contactless Conductivity Detector for the Direct Determination of Sulfite in Clear and Turbid Food Samples

Membranes, 2020
This study presents a simple flow-based system for the determination of the preservative agent sulfite in food and beverages. The standard method of conversion of sulfite ions into SO2 gas by acidification is employed to separate the sulfite from sample ...
Aulia Ayuning Tyas, Thitaporn Sonsa-ard, Kanchana Uraisin, Duangjai Nacapricha, Phoonthawee Saetear   +4 more
doaj   +1 more source

Research progress of UV/sulfite system on degradation of pollutants in water

Gongye shui chuli
Advanced reduction processes(ARPs) based on UV/sulfite(UV/SO32-) have received increasing attention due to high degradation capacity for some refractory pollutants.
SHEN Kaiyue, WEI Wenbo, ZHANG Xinhuan
doaj   +1 more source

Myelin Disruption, Neuroinflammation, and Oxidative Stress Induced by Sulfite in the Striatum of Rats Are Mitigated by the pan-PPAR agonist Bezafibrate

Cells, 2023
Sulfite predominantly accumulates in the brain of patients with isolated sulfite oxidase (ISOD) and molybdenum cofactor (MoCD) deficiencies. Patients present with severe neurological symptoms and basal ganglia alterations, the pathophysiology of which is
Nícolas Manzke Glänzel, Belisa Parmeggiani, Mateus Grings, Bianca Seminotti, Morgana Brondani, Larissa D. Bobermin, César A. J. Ribeiro, André Quincozes-Santos, Jerry Vockley, Guilhian Leipnitz   +9 more
doaj   +1 more source

Sulfur dioxide exploitation by electrochemical oxidation of sulfite in near-neutral pH electrolytes: A kinetics and mechanistic study

Electrochemistry Communications, 2019
Electrochemical oxidation of sulfite ions offers an efficient and profitable approach to the conversion of sulfur dioxide, a harmful air pollutant, into valuable by-products via flue gas desulfurization.
R.A. Márquez-Montes, R.E. Orozco-Mena, D. Lardizábal-Gutiérrez, D. Chávez-Flores, A. López-Ortíz, V.H. Ramos-Sánchez   +5 more
doaj   +1 more source

Bismuth‐Based Photocatalysts for Water Remediation: Design Strategies, Mechanisms, and Challenges

Advanced Functional Materials, EarlyView.
This review highlights representative design strategies for bismuth‐based semiconductor photocatalysts in solar‐driven water purification. Emphasis is placed on electronic structure regulation, oxygen‐vacancy engineering, and interfacial coupling to enable efficient full‐spectrum light utilization, improved charge separation, and selective oxidation in
Shan Liu, Yi Zhao, Liming Cai, Simin Long, Jing Kang, Jingkai Lin, Jimin Shen, Zhonglin Chen, Shaobin Wang, Huayang Zhang   +9 more
wiley   +1 more source

YeiE regulates YeiH to implement sulfite stress resistance in Salmonella enterica serotype Typhimurium

Journal of Bacteriology
Sulfites are toxic, reactive sulfur species that are widespread in nature. Bacteria are exposed to sulfites during the metabolism of sulfur-containing amino acids, during respiration using sulfur-containing electron acceptors, in host environments, and ...
Trina L. Westerman, Elly Scheuerell, Vivian H. Nguyen, Kaiya Johnson, Michael McClelland, Johanna R. Elfenbein   +5 more
doaj   +1 more source

An ESIPT‐Based Ratiometric Fluorescent Probe for Highly Sensitive and Rapid Detection of Sulfite in Living Cells

ChemistryOpen, 2019
The novel ratiometric fluorescent probe HPQRB with an ESIPT effect based on Michael addition for highly sensitive and fast detection of sulfite in living HepG2 cells is reported. HPQRB can be easily synthesized by a two‐step condensation reaction.
Yupeng Liu, Dr. Tian‐Bing Ren, Dr. Dan Cheng, Jianing Hou, Prof. Dongdong Su, Prof. Lin Yuan   +5 more
doaj   +1 more source

Electrolyte Design for Fast‐Charging Lithium‐Based Batteries

Advanced Materials, EarlyView.
A decade of progress in fast‐charging electrolytes for lithium batteries is reviewed. Electrolyte design strategies spanning solvents, salts, additives, and advanced systems, such as localized high‐concentration electrolytes (LHCEs), are summarized. Advanced diagnostic tools for lithium plating and interphase chemistry are discussed, with perspectives ...
Chen Liu, Zehao Cui, Arumugam Manthiram
wiley   +1 more source