Abstract
An exploration of gold nanoparticles-bacterial cellulose nanofibers (Au-BC) nanocomposite as a platform for amperometric determination of glucose is presented. Two enzymes, glucose oxidase (GOx) and horseradish peroxidase (HRP) were immobilized in Au-BC nanocomposite modified glassy carbon electrode at the same time. A sensitive and fast amperometric response to glucose was observed in the presence of electron mediator (HQ). Both of GOx and HRP kept their biocatalytic activities very well in Au-BC nanocomposite. The detection limit for glucose in optimized conditions was as low as 2.3 μM with a linear range from 10 μM to 400 μM. The biosensor was successfully applied to the determination of glucose in human blood samples.
| Original language | English |
|---|---|
| Pages (from-to) | 2543-2550 |
| Number of pages | 8 |
| Journal | Electroanalysis |
| Volume | 22 |
| Issue number | 21 |
| DOIs | |
| State | Published - Nov 2010 |
| Externally published | Yes |
Keywords
- Au-BC nanocomposite
- Biosensors
- Glucose
- Glucose oxidase
- Horseradish peroxidase