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Sensors (Basel). 2012;12(5):5996-6022. doi: 10.3390/s120505996. Epub 2012 May 10.

A critical review of glucose biosensors based on carbon nanomaterials: carbon nanotubes and graphene.

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  • 1Electrical Engineering Division, Department of Engineering, University of Cambridge, J J Thomson Avenue, Cambridge, CB3 0FA, UK. Zhigang.Zhu259@gmail.com

Abstract

There has been an explosion of research into the physical and chemical properties of carbon-based nanomaterials, since the discovery of carbon nanotubes (CNTs) by Iijima in 1991. Carbon nanomaterials offer unique advantages in several areas, like high surface-volume ratio, high electrical conductivity, chemical stability and strong mechanical strength, and are thus frequently being incorporated into sensing elements. Carbon nanomaterial-based sensors generally have higher sensitivities and a lower detection limit than conventional ones. In this review, a brief history of glucose biosensors is firstly presented. The carbon nanotube and grapheme-based biosensors, are introduced in Sections 3 and 4, respectively, which cover synthesis methods, up-to-date sensing approaches and nonenzymatic hybrid sensors. Finally, we briefly outline the current status and future direction for carbon nanomaterials to be used in the sensing area.

KEYWORDS:

carbon nanotube; glucose biosensor; graphene; nanotechnology; non-enzymatic sensor

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