As a noble metal, gold is considered the most popular material in electrocatalysis. In spite of that, this metal highly expensive manufacture low-cost appliances. present work, scrap gold, produced jewellery as waste, introduced resource to be recycled. A electrode was fabricated by connecting tablet shaped recycled with copper wire inserting into polytetrafluoroethylene (PTFE) tube. The manufa...

In this paper we are interested in the reactivity of magnetic nanoparticles at the electrode involved in the electrochemical synthesis of magnetic and conductive liquids. The reactivity of charged colloidal particles occurs in two steps, first the approach toward the electrode with a possible adsorption phenomenon and secondly the electron transfer. In this paper we focus on the electrochemical...

PURPOSE To examine a photoelectric artifact associated with the ERG-jet corneal contact lens electrode (Universe SA, La Chaux-de-Fons, Switzerland). METHODS An artifact associated with the ERG-jet, gold foil corneal contact lens electrode was reproduced in vitro and in vivo using 50 msec light flashes. In vitro responses were examined using light flashes that varied in intensity, duration, an...

A sensitive and convenient electrochemical assay of plasmin activity and its kinetic analysis are described. Thus, a ferrocenyl peptide substrate (FcPS) having a plasmin-specific substrate sequence, Lys-Thr-Phe-Lys, and a Cys residue was prepared and immobilized on a gold electrode through the sulfur-gold linkage. The obtained electrode showed a redox signal based on the ferrocene moiety, sugge...

We propose an electron transfer-mediated amperometric enzyme biosensor based on plasma-polymerized thin film of dimethylaminomethylferrocene (DMAMF) on a sputtered gold electrode. The DMAMF plasma-polymerized film is deposited directly onto the surface of the electrode under dry conditions. The resulting thin film not only has redox sites but also is extremely thin (approximately 20 nm), adhere...

We are interested here in the reactivity of magnetic nanoparticles at the electrode involved in the electrochemical synthesis of magnetic and conductive liquids. The reactivity of charged colloidal 10 particles occurs in two steps, first the approach toward the electrode with a possible adsorption phenomenon and secondly the electron transfer. In this paper we focus on the electrochemical behav...

The electrocatalytic oxidation of L-tyrosine was investigated on a gold nanoparticles self-assembled glassy carbon electrode (gold nanoparticles/cysteamine/glassy carbon) using cyclic voltammetry and differential pulse voltammetry. Cyclic voltammetry was carried out to study the electrochemical oxidation mechanism of L-tyrosine, which showed an irreversible oxidation process at a potential of 0...

The ferroelectric switching characteristics of a vinylidene fluoride and trifluoroethylene copolymer were significantly changed via the chemical modification of a gold electrode with an alkanethiol self-assembled monolayer (SAM). The alkanethiol SAM-Au electrode successfully suppressed the leakage current (dark current) from the electrode to the bulk ferroelectric. Smaller leakage currents led ...