Non-Enzymatic Electroanalysis of Glucose on Electrodeposited Au-PEDOT Dendrites

作者：Dash Sthitaprajna^*; Munichandraiah N

来源：ECS Electrochemistry Letters, 2013, 2(9): B17-B20.

DOI：10.1149/2.003309eel

Electrodeposition of Au on poly (3,4-ethylenedioxythiophene) (PEDOT) coated carbon paper electrode results in the formation of a stable 3-D urchin-like morphology. Au-PEDOT/C electrode exhibits higher surface area, greater catalytic activity, higher sensitivity and lower detection limit for glucose analysis in an alkaline medium than Au/C electrode. Au-PEDOT/C electrode exhibits a linear current response in glucose concentration ranging up to 10 mu M with sensitivity of 515 mu A cm(-2) mu M-1 (on the basis of geometric area) and a low detection limit of 0.03 mu M with signal to noise ratio of 3. Thus, the PEDOT under-layer improves the property of Au for glucose analysis.

• 出版日期2013