H2S derived from organic thiol metabolism has been proposed serve as an oxygen sensor in a variety of systems because of its susceptibility to oxidation and its ability to mimic hypoxic responses in numerous oxygen-sensing tissues. Thiosulfate, an intermediate in oxidative H2S metabolism can alternatively be reduced and regenerate H2S. We propose that this contributes to the H2S-mediated oxygen...

Over the years, use of new alternative lixiviants for gold extraction has been investigated to overcome environmental concerns resulting from cyanidation process. Moreover, with global economic factors causing a decline in prices, it is crucial that novel hydrometallurgical methods extracting minimise operational costs by using low-priced reagents such as thiosulfate. In current study, response...

Theoretical ab initio quantum mechanical charge field molecular dynamics (QMCF MD) has been applied in conjunction with experimental large angle X-ray scattering (LAXS) to study the structure and dynamics of the hydrated thiosulfate ion, S2O3(2-), in aqueous solution. The S-O and SC-ST bond distances have been determined to be 1.479(5) and 2.020(6) Å by LAXS and to be 1.478 and 2.017 Å by QMCF ...

T HE practice of chemistry is concerned very largely with the carrying out of chemical reactions whereby new substances are produced from old. The substances entering into the reaction are'known as reagents, and the substances produced as products. One of the factors in chemical reactions which is subject to human control and manipulation is summarized in the Law of Mass Action. This law, in si...

potato (solanum tuberosum l.) auxiliary buds c.v. white desiree were cultured in ms medium containing 0, 50, 100, 150 and 200 μm concentrations of silver thiosulfate (sts) under in vitro condition. after eight weeks, the effect of silver ions (ag+) in the form of silver thiosulfate complex (sts), as an ethylene action inhibitor, on chlorophyll contents of leaves, ascorbate peroxidase, guaiacol ...

Energy conservation via the pathway of dissimilatory sulfate reduction is present in a diverse group of prokaryotes, but is most comprehensively studied in Deltaproteobacteria. In this study, whole-genome microarray analyses were used to provide a model of the energy metabolism of the sulfate-reducing archaeon Archaeoglobus fulgidus, based on comparative analysis of litoautotrophic growth with ...

The novel genes soxFGH were identified, completing the sox gene cluster of Paracoccus pantotrophus coding for enzymes involved in lithotrophic sulfur oxidation. The periplasmic SoxF, SoxG, and SoxH proteins were induced by thiosulfate and purified to homogeneity from the soluble fraction. soxF coded for a protein of 420 amino acids with a signal peptide containing a twin-arginine motif. SoxF wa...

A novel wet scrubber comprising of an oxidation and a reducing section in series was used for the removal SO2 NOx from simulated ship emissions. Sodium chlorite (NaClO2) sodium thiosulfate (Na2S2O3) were oxidizing sections, respectively. Results showed that although increasing pH oxidant led to less NO being oxidised, lower rates achieved both soluble nitrogen formation (chiefly form nitrates) ...

The sulfur oxidation in mixed sodium thiosulfate/sucrose/aqueous microdroplets by gaseous ozone is studied this work via aerosol optical tweezers coupled with Raman spectroscopy, which can simultaneously determine various physicochemical properties and the heterogeneous reaction kinetics of single optically trapped microdroplets, allowing for elucidating their complicated interplay. According t...

INTRODUCTION In clinical situations, vascular calcification tends to progress and is difficult to completely arrest or reverse. Calciphylaxis, a severe complication of end-stage renal disease, is a specific form of vascular calcification. Control studies have provided evidence that monotherapy with sodium thiosulfate or cinacalcet delays the progression of vascular calcification. Successful tre...