The effect of colloidal solutions of gold nanoparticles ... - Springer Link

3 downloads 0 Views 232KB Size Report
Oct 15, 2010 - ORIGINAL PAPER. The effect of colloidal solutions of gold nanoparticles on the performance of a glucose oxidase modified carbon electrode.
Microchim Acta (2011) 172:185–191 DOI 10.1007/s00604-010-0474-2

ORIGINAL PAPER

The effect of colloidal solutions of gold nanoparticles on the performance of a glucose oxidase modified carbon electrode Natalija German & Arunas Ramanavicius & Jaroslav Voronovic & Yasemin Oztekin & Almira Ramanaviciene

Received: 13 May 2010 / Accepted: 24 September 2010 / Published online: 15 October 2010 # Springer-Verlag 2010

Abstract The aim of this work was to further evaluate the effect of colloidal solutions of gold nanoparticles (Au-NPs) on the performance of a carbon rod electrode modified with glucose oxidase. The amperometric response of the system at +0.3 V vs. Ag/AgCl was studied in the absence and in the presence of Au-NPs (6 nm and 13 nm in diameter) and in presence of N-methylphenazonium methyl sulfate (PMS) at pH 6.0. This study shows that the application of