Technetium-99m cations are of interest because of their potential use as myocardial perfusion imaging agents. These species can undergo in vivo reactions which markedly affect their biodistribution patterns. Four such cases of reactions are presented and discussed: (1) simple ligand substitution; (2) metal centered redox processes; (3) reactions of coordinated ligands; (4) outer sphere associat...

Abstract The use of photosynthetic biohybrids to drive redox reactions in vitro is a promising strategy due the natural abundance and high quantum efficiency bio-components. Here, we present different tools for fabrication photosystem I-based biohybrid devices by using redox-active polymers, 3D-structured electrodes as well additional light-harvesting antennae modules.

Recently, we have shown that thermal effects play a crucial role in speeding up the rate of bond-dissociation reactions. This was done by applying simple temperature-shifted Arrhenius Law to experimental data, corroborated with detailed account heat diffusion occurring within relevant samples and identification errors temperature measurements. Here, provide three important extensions our previo...

An overview of the metal-mediated synthesis and use of nanosized metallodendrimers is given with emphasis on electron-transfer processes (molecular batteries consisting in dendrimers decorated with a large number of equivalent redox-active centers) and catalytic reactions (electron-transfer-chain catalytic synthesis of dendrimers decorated with ruthenium carbonyl clusters, redox catalysis of ni...

The redox (Reduction-Oxidation) flow battery is one of the most promising rechargeable batteries due to its ability to average loads and output of power sources. The transient characteristics are well known as the remarkable feature of the battery. Then it can also compensate for a sudden voltage drop. The dynamics are governed by the chemical reactions, fluid flow, and electrical circuit of it...

Current rechargeable batteries generally display limited cycle life and slow electrode kinetics and contain environmentally unfriendly components. Furthermore, their operation depends on the redox reactions of metal elements. We present an original battery system that depends on the redox of I(-)/I3 (-) couple in liquid cathode and the reversible enolization in polyimide anode, accompanied by L...

Studies on anisotropic inhibitors, a unique type of inhibitor of energy transduction in oxidative phosphorylation, suggested that redox reactions generate two kinds of negative charges on the outer surface of mitochondrial inner membranes, on redox complexes and on F0, and that the inhibitors inhibit energy transduction by binding to these negative charges. Recent experiments on photoaffinity l...

Cooperative catalysis between Cu(II) and redox-active organic cocatalysts is a key feature of important chemical and enzymatic aerobic oxidation reactions, such as alcohol oxidation mediated by Cu/TEMPO and galactose oxidase. Nearly 20 years ago, Markó and co-workers reported that azodicarboxylates, such as di-tert-butyl azodicarboxylate (DBAD), are effective redox-active cocatalysts in Cu-cata...

Rechargeable proton-exchange membrane batteries that employ organic chemical hydrides as hydrogen-storage media have the potential to serve as next-generation power sources; however, significant challenges remain regarding the improvement of the reversible hydrogen-storage capacity. Here, we address this challenge through the use of metal-ion redox couples as energy carriers for battery operati...

Standard redox potentials, E8s and redox processes of U, Np and Pu ions in acidic aqueous solutions are reviewed and evaluated critically. The E8s of reversible redox processes, MO2 /MO2 ‡ and M/M (M: U, Np or Pu) adopted are those proposed mainly by Riglet et al. on the basis of the precise correction of formal potentials, E8 s, according to the improved theoretical approach to estimate the ac...