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May 3, 2008Electroanalysis

Direct Electrochemistry of Glucose Oxidase at Carbon Nanotube‐gold Colloid Modified Electrode with Poly(diallyldimethylammonium chloride) Coating

Yanli Yao Kwok‐Keung Shiu

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Abstract

Glucose oxidase showed direct electrochemical transfer at glassy carbon electrodes immobilized with carbon nanotube‐gold colloid (CNT‐Au) composites with poly(diallydimethylammonium chloride) (PDDA) coatings. The modified electrode (GC/CNT/Au/PDDA‐GOD) was employed for the amperometric determination of glucose. Under optimal conditions, the biosensor displayed linear response to glucose from 0.5 to 5 mM with a sensitivity of 2.50 mA M −1 at an applied potential of −0.3 V (vs. Ag|AgCl reference).

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Yao et al. (2008) studied this question.

synapsesocial.com/papers/6a70152e8031ec7bb1dc1a0c https://doi.org/10.1002/elan.200804209

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