Inhibition of Photo-Induced Silver Nanoparticles to Response Current of Glucose Biosensor

doi:10.7517/j.issn.1674-0475.2009.06.401

Abstract

Abstract: The silver nanoparticle/chitosan composite matrix was developed to fabricate the glucose biosensor. The response current of the enzyme electrode containing AgNPs photo-induced at different time was characterized by chronoamperometry. The experimental results indicated that the response current of the glucose biosensor was inhibited by the photo-induced silver nanoparticles. The inhibitory effect of silver nanoparticles enhanced along with the photo-induced time. When the photo-induced time of silver nanoparticles was 120 min,the response current of the glucose biosensor reached the minimum value,-3.953 μA/cm². The inhibition of response current of the glucose biosensor is probably due to the change of Ag⁺ ions concentration and the new surface formation of silver nanoparticles.

Key words: silver nanoparticle, illumination, glucose oxidase, response current, inhibition

CLC Number:

MA Shi-yu, QU Yi, MU Jin, WANG Guo-jun, JIANG Long. Inhibition of Photo-Induced Silver Nanoparticles to Response Current of Glucose Biosensor[J]. Imaging Science and Photochemistry, 2009, 27(6): 401-408.

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