The binding of SCNwith bovine plasma albumin has been studied at 4” by equilibrium dialysis in ethylenediaminetetraacetate and N-(carboxymethyl)-N’,-Z-hydroxyethylN, N’-ethylenediglycine solutions. These two supporting electrolytes were used to minimize Donnan effects. At low ionic strengths (0 to 0.04), the association constants of SCNwere found to increase with decreasing concentrations of su...

An indium tin oxide glass electrode coated with poly(3,4-ethylenedioxythiophene), PEDOT, PEDOT-ITOE, was proposed as an electrode workable as both a reference electrode and a counter one, a reference/counter electrode, in an organic phase and applied to a thin-layer cell of a two-electrode system for voltammetry at the liquid | liquid interface. By oxidizing the PEDOT film by 50% and doping a s...

The individual adsorption events of sub-μm silica and polystyrene spheres (310-530 nm in diam.) were detected by monitoring the blocking of redox mediator diffusion to Pt ultramicroelectrode (UME) substrates by the adsorbing spheres. Under the diffusion limited oxidation of FcMeOH and at low supporting electrolyte concentrations, the negatively charged spheres arrive at the electrode by electro...

Electrodes based on carbon, i.e., expanded graphite (20%, wt.)-epoxy composite(20EG-Epoxy) and expanded graphite (20%, wt.)-polystyrene composite (20EG-PS) havebeen prepared, characterized using scanning electron microscopy (SEM) and cyclicvoltammetry (CV), and tested as anodic sensors. The electrodes exhibited good mechanicalresistance and low electrical resistances. Scan rate dependent cyclic...

Alkaline or hydroxide exchange membrane water electrolysis (HEMWE) is a promising technology for green hydrogen production using platinum group metal-free catalysts and stainless steel, an advantage of alkaline (AWE), gas-impermeable membrane, parallel to proton (PEMWE). However, the HEMWE requires supporting electrolytes there minimal understanding their role on respective reactions. Without S...

This work deals with the formation of dendritic structures by electrodeposition Cu 2+ and Ag + without supporting electrolyte in Hele-Shaw cells. The transition between two main patterns, ramified branches dendrites, is specifically addressed at scale branch microstructure using careful SEM observations. Ramified branches, composed only grain assemblies, are obtained low current densities becau...

Hydroxide-exchange-membrane water electrolysis (HEMWE) is an emerging hydrogen-production pathway that combines many advantages of incumbent alkaline (AWE) and proton-exchange-membrane (PEMWE). Advancement in HEMWE has been accelerated with the development stable conductive hydroxide exchange membranes (HEMs) a more comprehensive understanding gas-evolving kinetics. However, performance durabil...