Electron-transfer properties of different carbon nanotube materials, and their use in glucose biosensors

Yanli Yao; Kwok Keung SHIU

doi:10.1007/s00216-006-0924-1

Electron-transfer properties of different carbon nanotube materials, and their use in glucose biosensors

Yanli Yao, Kwok Keung SHIU^*

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

71 Citations (Scopus)

Abstract

Different types of carbon nanotube material (single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) of different internal diameter) have been used for preparation of CNT-modified glassy-carbon electrodes. Redox reactions involving ferricyanide and hydrogen peroxide were examined at the CNT-modified electrodes. Electrodes modified with SWCNTs usually had better electron-transfer properties than MWCNT-modified electrodes. Glucose biosensors were also prepared with electropolymerized polyphenylenediamine films, CNT materials, and glucose oxidase. Amperometric behavior in glucose determination was examined. SWCNT-modified glucose biosensors usually had a wider dynamic range (from 0.1 to 5.5 mmol L^-1) and greater sensitivity in glucose determination. The detection limit was estimated to be 0.05 mmol L^-1.

Original language	English
Pages (from-to)	303-309
Number of pages	7
Journal	Analytical and Bioanalytical Chemistry
Volume	387
Issue number	1
DOIs	https://doi.org/10.1007/s00216-006-0924-1
Publication status	Published - Jan 2007

Scopus Subject Areas

Analytical Chemistry
Biochemistry

User-Defined Keywords

Carbon nanotubes
Electron-transfer properties
Glucose biosensors
Polyphenylenediamine
Tube internal diameter

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10.1007/s00216-006-0924-1

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title = "Electron-transfer properties of different carbon nanotube materials, and their use in glucose biosensors",

abstract = "Different types of carbon nanotube material (single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) of different internal diameter) have been used for preparation of CNT-modified glassy-carbon electrodes. Redox reactions involving ferricyanide and hydrogen peroxide were examined at the CNT-modified electrodes. Electrodes modified with SWCNTs usually had better electron-transfer properties than MWCNT-modified electrodes. Glucose biosensors were also prepared with electropolymerized polyphenylenediamine films, CNT materials, and glucose oxidase. Amperometric behavior in glucose determination was examined. SWCNT-modified glucose biosensors usually had a wider dynamic range (from 0.1 to 5.5 mmol L-1) and greater sensitivity in glucose determination. The detection limit was estimated to be 0.05 mmol L-1.",

keywords = "Carbon nanotubes, Electron-transfer properties, Glucose biosensors, Polyphenylenediamine, Tube internal diameter",

author = "Yanli Yao and SHIU, {Kwok Keung}",

note = "Funding Information: Acknowledgement This work was partially supported by the Research Grants Council of Hong Kong (HKBU 2018/04P).",

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doi = "10.1007/s00216-006-0924-1",

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AU - Yao, Yanli

AU - SHIU, Kwok Keung

N1 - Funding Information: Acknowledgement This work was partially supported by the Research Grants Council of Hong Kong (HKBU 2018/04P).

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Y1 - 2007/1

N2 - Different types of carbon nanotube material (single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) of different internal diameter) have been used for preparation of CNT-modified glassy-carbon electrodes. Redox reactions involving ferricyanide and hydrogen peroxide were examined at the CNT-modified electrodes. Electrodes modified with SWCNTs usually had better electron-transfer properties than MWCNT-modified electrodes. Glucose biosensors were also prepared with electropolymerized polyphenylenediamine films, CNT materials, and glucose oxidase. Amperometric behavior in glucose determination was examined. SWCNT-modified glucose biosensors usually had a wider dynamic range (from 0.1 to 5.5 mmol L-1) and greater sensitivity in glucose determination. The detection limit was estimated to be 0.05 mmol L-1.

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KW - Polyphenylenediamine

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Electron-transfer properties of different carbon nanotube materials, and their use in glucose biosensors

Abstract

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