Track topics on Twitter Track topics that are important to you
The Fenton process, one of several advanced oxidation processes, describes the reaction of Fe(II) with hydrogen peroxide. Fe(II) is oxidized to Fe(III) that reacts with hydrogen peroxide to Fe(II) and again initiates the Fenton reaction. In the course of the reactions reactive species, e.g. hydroxyl radicals, are formed. Conditions such as pH, ligand concentrations and the hydrogen peroxide/Fe(II) ratio may influence the OH radical yield. It could be shown that at pH < 2.7 and >3.5 the OH radical yield decreases significantly. Two ligands were investigated, pyrophosphate and sulfate. It was found that pyrophosphate forms a complex with Fe(III) that does not react with hydrogen peroxide and thus, the Fenton reaction is terminated and the OH radical yields do not further increase. The influence of sulfate is not as strong as that of pyrophosphate. The OH radical yield is decreased when sulfate is added but even at higher concentrations the Fenton reaction is not terminated.
This article was published in the following journal.
The sensitive and selective fluorescence probe for hydroxyl radical analysis is of significance because hydroxyl radical plays key roles in many physiological and pathological processes. In this work,...
A two-stage sequential electro-Fenton (E-Fenton) oxidation followed by electrochemical chlorination (EC) was demonstrated to concomitantly treat high concentrations of organic carbon and ammonium nitr...
This study suggested the amount of hydroxyl radicals (OH) reacting with organics as a new index to evaluate the reaction efficiency (RE) of Fenton process, and used it to investigate the degradation m...
The straightforward synthesis of a new unsymmetrical hydroxyl-tethered N-heterocyclic carbene (NHC) ligand, HL is presented. The free ligand exhibits an unusual OH-carbene hydrogen-bonding interaction...
The combination of persulfates (peroxydisulfate (PDS) and peroxymonosulfate (PMS)) and electrolysis using boron-doped diamond (BDD) anode is a promising green advanced oxidation process. In comparison...
The goal of this clinical research study is to learn about the safety and the effectiveness of using AmnioFix® (dehydrated human amnion/chorion membrane, also called dHACM) to help improv...
RATIONALE: Biological therapies such as flt3L and CD40-ligand use different ways to stimulate the immune system and stop cancer cells from growing. Biological therapy may be an effective t...
The trial is to evaluate the efficacy and safety of recombinant human Apo-2 ligand in treating patients with advanced retreated non-small cell lung cancer
The purpose of this study is to see if a new diagnostic research agent named 68Ga-HBED-CC-PSMA can show prostate cancer on a PET/CT scan that cannot be seen on other standard imaging even ...
The investigator intends to review retrospective de-identified data of patients who have had Laparoscopic Radical Cystectomies by the Department of Urology at UCIMC.
The univalent radical OH. Hydroxyl radical is a potent oxidizing agent.
An enzyme that catalyzes the transfer of a phosphate group to the 5'-terminal hydroxyl groups of DNA and RNA. EC 126.96.36.199.
Inorganic salts of HYDROGEN CYANIDE containing the -CN radical. The concept also includes isocyanides. It is distinguished from NITRILES, which denotes organic compounds containing the -CN radical.
A metabolite of TESTOSTERONE or ANDROSTENEDIONE with a 3-alpha-hydroxyl group and without the double bond. The 3-beta hydroxyl isomer is epiandrosterone.
A transmembrane-protein belonging to the TNF family of intercellular signaling proteins. It is a widely expressed ligand that activates APOPTOSIS by binding to TNF-RELATED APOPTOSIS-INDUCING LIGAND RECEPTORS. The membrane-bound form of the protein can be cleaved by specific CYSTEINE ENDOPEPTIDASES to form a soluble ligand form.