Microdroplets show unique chemistry, especially in their intrinsic redox properties, and to this we here add a case of simultaneous spontaneous oxidation reduction. We report the concurrent conversions several phosphonates phosphonic acids by reduction (R?P ? H?P) pentavalent phosphoric oxidation. The experimental results suggest that active reagent is water radical cation/anion pair. cation ob...

Thimerosal, a sulfhydryl oxidizing reagent, has been shown to induce Ca2+ mobilization in several cell types and to increase the sensitivity of intracellular Ca2+ stores to inositol 1,4,5-trisphosphate (IP3). Using purified IP3 receptor (IP3R) protein reconstituted in vesicles, we demonstrate pronounced stimulation by thimerosal of its Ca2+ channel activity. Effects of thimerosal are dependent ...

We have investigated the effect of mixing an alcohol-soluble C60 derivative into a self-assembled monolayer (SAM), which consisted of a redox-active Ru-complex with multipoint anchoring groups, on an indium tin oxide surface. Angle-resolved X-ray photoelectron spectroscopy of the mixed SAM revealed that the C60 derivative was well incorporated into the redox-active Ru-complex SAM. In addition, ...

In this study, we used gas chromatography-mass spectrometry analysis in combination with flux analysis and the Affymetrix ATH1 GeneChip to survey the metabolome and transcriptome of Arabidopsis (Arabidopsis thaliana) leaves in response to manipulation of the thiol-disulfide status. Feeding low concentrations of the sulfhydryl reagent dithiothreitol for 1 h at the end of the dark period led to p...

A new type of voltage-responsive comb-like superamphiphilic block polymer PEG113-b-PAA30/FTMA was prepared by the electrostatic interactions of an ionic ferrocenyl surfactant (FTMA) and an oppositely charged double-hydrophilic block polyelectrolyte poly-(ethylene glycol)-b-poly(acrylic acid) (PEG113-b-PAA30) in aqueous solution. An in situ electrochemical redox system was designed to research i...

Abstract The electron is the ultimate redox reagent to build and reshape molecular structures. Understanding controlling parameters underlying dissociative transfer (DET) reactivity its coupling with proton crucial for combining selectivity, kinetics energy efficiency in chemistry. Reactivity understanding mechanistic elements DET processes are traced back key examples of current research effor...

Monitoring and control of redox processes are key to operate wastewater chemical treatment plants at high-loading-rate whilst rejecting concentration and composition disturbances. Carbon dioxide concentration and oxidationreduction potential (ORP) are selected as key inferential measurements of oxidation kinetics and oxidant reagent consumption. An extremum-seeking control cascade is proposed f...

2406 41 5 1 73 lodate has been recently introduced in the patches of 1395 47.6 3:41 Combur-8 Test, which involves a peroxidase (EC 1.11.1.7) 982 24.2 2.46 redox indicator system (glucose, hemoglobin) to decrease the interference ofthe reaction with ascorbic acid (4); potassium iodide is incorporated as chromogen in the glucose reagent area of N-Multistix. We hope that the report of such false-p...

KEYWORDS Electrochemistry • gold • kinetics • radicals • voltammetry 2 ABSTRACT It has long been known that defects on a gold surface play an important role in electrocatalysis, but the precise mechanism has always been unclear. This work indicates that the defect sites provide partially filled d-orbitals that stabilize free-radical intermediates. Strong evidence for this hypothesis is that the...

The direct conversion of aliphatic carboxylic acids to the corresponding alkyl fluorides has been achieved via visible light-promoted photoredox catalysis. This operationally simple, redox-neutral fluorination method is amenable to a wide variety of carboxylic acids. Photon-induced oxidation of carboxylates leads to the formation of carboxyl radicals, which upon rapid CO2-extrusion and F(•) tra...