Ferrocene-Modified Polyelectrolyte Film-Coated Electrode and Its Application in Glucose Detection.

ABSTRACT: A polyelectrolyte film-coated electrode for the quantitative detection of glucose was reported. Carbon nanotubes, graphene oxide and polyelectrolyte with a ferrocenyl group were used to modify an enzyme electrode to facilitate the electron transfer between glucose oxidase and the electrode. Cyclic voltammetry and amperometric methods were adopted to investigate the effects of different polyelectrolytes and carbon nanomaterials on the electrochemical properties of enzyme electrodes. The results indicate that the ferrocenyl groups on a polyelectrolyte skeleton act as a mediator between the redox center of glucose oxidase and the electrode, which efficiently enhances the electron transfer between a glassy carbon electrode and glucose oxidase. The calibration curve of the sensor shows a linear

SUBMITTER: Jiang Z 

PROVIDER: S-EPMC6473894 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature