A high throughput glucose biosensor based on FIA and gold nanowire arrays at low potential

Jianing Hui, Jiewu Cui, Yan Wang, Yong Zhang, Jinkun Liang, Xinyi Zhang, Wei Chen, Edward E. Ogabiela, Samuel B. Adeloju, Yucheng Wu

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A hybrid flow injection-nanobiosensor system for the detection of glucose at low potential is presented in this paper. For the fabrication of the biosensor, highly ordered gold nanowire arrays (AuNWAs) are synthesized by direct electrodeposition in combination with template approach. Glucose oxidase and horseradish peroxidase are immobilized on the surface of the resultant AuNWAs by cross-linking with glutaraldehyde (GLA) and bovine serum albumin (BSA). In combination with a flow injection system, the biosensor demonstrate high performance in glucose detection with a sensitivity of 25.34 μA. cm-2. mM-1, a linear range between 5 and 1000 μM, a detection limit of 1 μM, and a sample throughput of 45 h-1. High selectivity against uric acid, nitrate and chloride ions is also achieved. In addition, it shows good reproducibility, repeatability and stability, which are beneficial for the practical applications in glucose detection. Finally, the developed nanobiosensor is applied to the detection of glucose in river water and the biosensor presents good performance with a relative standard deviation of 1.33% and a recovery rate of 100.4∼102.9%.

Original languageEnglish
Pages (from-to)B291-C296
Number of pages6
JournalJournal of the Electrochemical Society
Volume161
Issue number14
DOIs
Publication statusPublished - 01 Jan 2014

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bioinstrumentation
Biosensors
glucose
Gold
Nanowires
Glucose
nanowires
Throughput
gold
Glucose Oxidase
Glucose oxidase
injection
Glutaral
uric acid
Horseradish Peroxidase
Bovine Serum Albumin
Uric Acid
Electrodeposition
Nitrates
oxidase

Cite this

Hui, Jianing ; Cui, Jiewu ; Wang, Yan ; Zhang, Yong ; Liang, Jinkun ; Zhang, Xinyi ; Chen, Wei ; Ogabiela, Edward E. ; Adeloju, Samuel B. ; Wu, Yucheng. / A high throughput glucose biosensor based on FIA and gold nanowire arrays at low potential. In: Journal of the Electrochemical Society. 2014 ; Vol. 161, No. 14. pp. B291-C296.
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A high throughput glucose biosensor based on FIA and gold nanowire arrays at low potential. / Hui, Jianing; Cui, Jiewu; Wang, Yan; Zhang, Yong; Liang, Jinkun; Zhang, Xinyi; Chen, Wei; Ogabiela, Edward E.; Adeloju, Samuel B.; Wu, Yucheng.

In: Journal of the Electrochemical Society, Vol. 161, No. 14, 01.01.2014, p. B291-C296.

Research output: Contribution to journalArticle

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