The properties of stable gold (Au) nanoparticle dispersions can be tuned to alter their activity towards biomembrane models. Au coating techniques together with rapid electrochemical screens a phospholipid layer on fabricated mercury (Hg) platinum (Pt) electrode have been used moderate the dispersions. Screening results for were intercalibrated large unilamellar vesicle (LUV) interactions using...

A PdPt (10 wt% Pt) catalyst is used to replace platinum at the cathode of a PEMFC MEA whereas pure palladium is used as the anode catalyst. The catalysts are deposited on commercial carbon woven web and carbon paper GDLs by plasma sputtering. The relations between the depth density profiles, the electrode support and the fuel cell performances are discussed. It is shown that the catalyst gradie...

Enzyme-modified microelectrodes were developed for the indirect amperometric detection of acetylcholine and choline following separation by capillary electrophoresis. Electrodes were prepared by first sequentially electrodepositing polypyrrole and polytyramine from the monomers on a 200-microm platinum electrode. The polymer bilayer provides enhanced selectivity and pendant amino groups for cov...

Dynamic nerve blood flow was studied using hydrogen clearance method (2,3). For this purpose a platinum microelectrode was implanted subepineurally during the operation using the operation microscope. The electrode was fixed to the epineurium with a thin thread and passed through a special hole onto the skin. An indifferent silver electrode was placed subcutaneously. Proximal ends of both the e...

A stacking approach based on pH junction and field amplification has been developed for determining amines by capillary electrophoresis (CE) with electrochemiluminescence (ECL) detection. A two-electrode configuration was employed with an indium/tin oxide-coated glass as a working electrode and a platinum wire as a pseudoreference electrode. The ECL system also contains a flow cell (poly(dimeth...

The interest in thermogalvanic cells (TGCs) has grown because it is a candidate technology for harvesting electricity from natural and waste heat. However, the cost of TGCs has a major component due to the use of the platinum electrode. Here, we investigate new alternative electrode material based on conducting polymers, more especially poly(3,4-ethylenedioxythiophene)-tosylate (PEDOT-Tos) toge...

This contribution is based on our presentation at the 1 International Symposium on Sensor Science, Paris, 16-20 June 2003. It presents recent results regarding the electrochemical determination of submicromolar and nanomolar concentrations of various carcinogenic substances (nitrated polycyclic aromatic hydrocarbons, heterocyclic compounds, azo compounds, aromatic amino compounds, etc.) using b...

Poly 8-(3-acetylimino-6-methyl-2,4-dioxopyran)-1-aminonaphthalene (PAMDAN) films were electrodeposited on platinum electrode (Pt), forming PAMDAN/Pt modified electrode, to study its utility in electrooxidation of iodide ion. The electrooxidation process was investigated by cyclic voltammetry. The effects of different factors e.g. scan rate, iodide ion concentration, film thickness and acid conc...

131 ISSN 1759-7269 10.4155/BFS.12.93 © 2013 Future Science Ltd Microbial electrocatalysis During the last 10 years, research on bioelectrochemical systems with alive microbes on anodes or cathodes (electrodes) has blossomed. We refer to microbial activity on electrodes as microbial electrocatalysis, especially when no artificial mediators are added to the cultures. Initially, researchers focuse...