In photosynthesis in chloroplasts, two related regulatory processes balance the actions of photosystems I and II. These processes are short-term, post-translational redistribution of light-harvesting capacity, and long-term adjustment of photosystem stoichiometry initiated by control of chloroplast DNA transcription. Both responses are initiated by changes in the redox state of the electron car...

In glutathione redox buffers, rat liver, microsomal 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase rapidly equilibrates between a reduced, active form and an oxidized, inactive form. At pH 7.0, 37 “C, the second order rate constant for inactivation of the reduced enzyme by GSSG is 1700 f 200 M-’ min-l, approximately 20-fold faster than the reaction of GSSG with a typical, unhindered ...

A simple, inexpensive and eco-friendly approach is developed toward the synthesis of large-scale production α-MnO 2 nanowires by quick redox-reaction between permanganate glycine, are investigated as anode material for Li-ion batteries.

Using operando and transient spectroscopies (IR, Raman, UV-Vis), low-loaded Cu/CeO 2 (111) catalysts were investigated with respect to their redox behavior the importance of adsorbates for reverse water–gas shift (rWGS) reaction.

Ni-Fe oxyhydroxides are the most active known electrocatalysts for the oxygen evolution reaction (OER) in alkaline electrolytes and are therefore of great scientific and technological importance in the context of electrochemical energy conversion. Here we uncover, investigate, and discuss previously unaddressed effects of conductive supports and the electrolyte pH on the Ni-Fe(OOH) catalyst red...

The Generalized Approach To Electrolytic Systems (GATES) (Michałowski, 2001, 2010) provides the possibility of thermodynamic description of equilibrium and metastable, redox and non-redox, mono-, twoand three-phase systems, with the possibility of all attainable/pre-selected physicochemical knowledge to be involved, with none simplifying assumptions done for calculation purposes, where differen...

Rate data for electrochemical and homogeneous redox reactions involving R u , ~ + / ~ + , V,q3+/2+, Fe,q3+/2+, E u , ~ ~ + / ~ + , and Cr,2+/2+ redox couples (where "aq" represents aquo ligands) have been analyzed and compared by using the rate relations due to Marcus in order to ascertain how the kinetics of outer-sphere electron exchange are dependent upon the metal redox center. The work-cor...

A large entropy of proton solvation was used for thermoelectric conversion. [Ru(Him)6] complex produces 3.7 mV at a temperature difference 1 K. This ruthenium exhibits proton-coupled electron transfer reaction and releases protons associated with the redox reaction. Its causes shift in equilibrium from difference. More information can be found Communication by T. Yamada et al. on page 4287.

    Electrochemical aptamer-based sensors attract a lot of interest as useful methods because of their low cost, accuracy, sensitivity, and simplicity. An electro-active redox molecule comprises the main part of the electrochemical-based sensors. Ferrocene is one of the most popular redox molecule used in biosensor fabrication. But, instability of ferrocenium ion in strong nucleophilic reagents...

A theoretical model describing the transport and kinetic processes involved in heterogeneous redox catalysis of solution phase reactants at electrode surfaces coated with redox active monolayers is presented. We describe theoretically the time dependent chronoamperometric response expected for a redox active monolayer in the absence of a substrate in solution, and subsequently extend the analys...