C60-mediated bioelectrocatalyzed oxidation of glucose with glucose oxidase

Fernando Patolsky; Guoliang Tao; Eugenii Katz; Itamar Willner

doi:10.1016/S0022-0728(98)00257-5

C₆₀-mediated bioelectrocatalyzed oxidation of glucose with glucose oxidase

Fernando Patolsky, Guoliang Tao, Eugenii Katz, Itamar Willner^*

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

55 Scopus citations

Abstract

This report emphasizes the use of C₆₀ as an electron mediator for electrocatalyzed biotransformations. A fullerene, C₆₀, carboxylic derivative was covalently attached to a cystamine-monolayer-functionalized Au-electrode. The C₆₀-monolayer revealed a quasi-reversible electrochemical behavior (E⁰ = 0.31 V vs SCE) in aqueous electrolyte. The C₆₀-monolayer (surface density F_C60 = 1.3 × 10^-10 mol cm^-2) provided electrical communication between the electrode and a soluble glucose oxidase, GOx, with the electron transfer rate constant k_et = 3 × 10⁴ M^-1 s^-1. The monolayer-immobilized C₆₀-mediated bioelectrocatalyzed glucose oxidation in the presence of GOx which was studied by cyclic voltammetry and the rotating disk electrode technique.

Original language	English
Pages (from-to)	9-13
Number of pages	5
Journal	Journal of Electroanalytical Chemistry
Volume	454
Issue number	1-2
DOIs	https://doi.org/10.1016/S0022-0728(98)00257-5
State	Published - 28 Aug 1998

Keywords

Bioelectrocatalysis
C
C-monolayer
Electron mediator
Fullerene
Glucose oxidase
Modified electrode
Redox enzymes

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10.1016/S0022-0728(98)00257-5

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title = "C60-mediated bioelectrocatalyzed oxidation of glucose with glucose oxidase",

abstract = "This report emphasizes the use of C60 as an electron mediator for electrocatalyzed biotransformations. A fullerene, C60, carboxylic derivative was covalently attached to a cystamine-monolayer-functionalized Au-electrode. The C60-monolayer revealed a quasi-reversible electrochemical behavior (E0 = 0.31 V vs SCE) in aqueous electrolyte. The C60-monolayer (surface density FC60 = 1.3 × 10-10 mol cm-2) provided electrical communication between the electrode and a soluble glucose oxidase, GOx, with the electron transfer rate constant ket = 3 × 104 M-1 s-1. The monolayer-immobilized C60-mediated bioelectrocatalyzed glucose oxidation in the presence of GOx which was studied by cyclic voltammetry and the rotating disk electrode technique.",

keywords = "Bioelectrocatalysis, C, C-monolayer, Electron mediator, Fullerene, Glucose oxidase, Modified electrode, Redox enzymes",

author = "Fernando Patolsky and Guoliang Tao and Eugenii Katz and Itamar Willner",

year = "1998",

month = aug,

day = "28",

doi = "10.1016/S0022-0728(98)00257-5",

language = "אנגלית",

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AU - Patolsky, Fernando

AU - Tao, Guoliang

AU - Katz, Eugenii

AU - Willner, Itamar

PY - 1998/8/28

Y1 - 1998/8/28

N2 - This report emphasizes the use of C60 as an electron mediator for electrocatalyzed biotransformations. A fullerene, C60, carboxylic derivative was covalently attached to a cystamine-monolayer-functionalized Au-electrode. The C60-monolayer revealed a quasi-reversible electrochemical behavior (E0 = 0.31 V vs SCE) in aqueous electrolyte. The C60-monolayer (surface density FC60 = 1.3 × 10-10 mol cm-2) provided electrical communication between the electrode and a soluble glucose oxidase, GOx, with the electron transfer rate constant ket = 3 × 104 M-1 s-1. The monolayer-immobilized C60-mediated bioelectrocatalyzed glucose oxidation in the presence of GOx which was studied by cyclic voltammetry and the rotating disk electrode technique.

AB - This report emphasizes the use of C60 as an electron mediator for electrocatalyzed biotransformations. A fullerene, C60, carboxylic derivative was covalently attached to a cystamine-monolayer-functionalized Au-electrode. The C60-monolayer revealed a quasi-reversible electrochemical behavior (E0 = 0.31 V vs SCE) in aqueous electrolyte. The C60-monolayer (surface density FC60 = 1.3 × 10-10 mol cm-2) provided electrical communication between the electrode and a soluble glucose oxidase, GOx, with the electron transfer rate constant ket = 3 × 104 M-1 s-1. The monolayer-immobilized C60-mediated bioelectrocatalyzed glucose oxidation in the presence of GOx which was studied by cyclic voltammetry and the rotating disk electrode technique.

KW - Bioelectrocatalysis

KW - C

KW - C-monolayer

KW - Electron mediator

KW - Fullerene

KW - Glucose oxidase

KW - Modified electrode

KW - Redox enzymes

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JO - Journal of Electroanalytical Chemistry

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IS - 1-2

ER -

C₆₀-mediated bioelectrocatalyzed oxidation of glucose with glucose oxidase

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Keywords

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