Nano Science and Technology InstituteNano Science and Technology Institute
Nano Science and Technology Institute 2004 NSTI Nanotechnology Conference & Trade Show
Nanotech 2004
BioNano 2004
Program
Topics & Tracks
Sunday
Monday
Tuesday
Wednesday
Thursday
Index of Authors
Keynotes
Awards
Tutorials
Business & Investment
2004 Sub Sections
Sponsors
Exhibitors
Venue 2004
Proceedings
Organization
Press Room
Purchase CD/Proceedings
NSTI Events
Subscribe
Site Map
Nanotech Proceedings
Nanotechnology Proceedings
Supporting Organizations
Nanotech Supporting Organizations
Media Sponsors
Nanotech Media Sponsors
Event Contact
696 San Ramon Valley Blvd., Ste. 423
Danville, CA 94526
Ph: (925) 353-5004
Fx: (925) 886-8461
E-mail:
 
 

A Disposable Glucose Biosensor Based on Diffusional Mediator Dispersed in Nanoparticulate Membrane on Screen-Printed Carbon Electrode

Z. Gao, F. Xie, M. Shariff, M. Arshad and J.Y. Ying
Institute of Bioengineering and Nanotechnology, SG

Keywords: Biosensor, glucose, alumina, membrane

Abstract:
In this paper, we described a disposable glucose biosensor based on co-dispersion of a diffusional polymeric mediator and glucose oxidase (GOX) in nanoparticulate membrane on screen-printed carbon electrode. The biosensor exhibited classical features of a kinetically fast redox couple. At scan rates up to 200 mV/s, the peak-to-peak potential separation of the mediator was 59 mV at 25o. In the presence of glucose, a typical catalytic oxidation current was observed, which reached a plateau at 0.30 V (vs. Ag/AgCl). Under optimal experimental conditions, the amperometric peak current at 5 sec and the subsequent currents at longer test times measured at 0.30 V were linear to the glucose concentration in the range of 5 to 600 mg/dl. By constructing a miniature channel on the screen-printed electrode and partially filling the channel with the nanoparticulate sensing membrane, glucose can be accurately determined in as little as 0.20 ml of sample. Successful attempts were made in blood sugar analysis. The results were in good agreement with the reference values obtained with a commercial blood sugar analyzer.

Nanotech 2004 Conference Technical Program Abstract

 
Sponsors
Nanotech Sponsors
News Headlines
NSTI Online Community
 
 

© Nano Science and Technology Institute, all rights reserved.
Terms of use | Privacy policy | Contact