Nanoelectronic biosensors based on CVD grown graphene

Yinxi Huang, Xiaochen Dong, Yumeng Shi, Chang Ming Li, Lain-Jong Li*, Peng Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

337 Scopus citations

Abstract

Graphene, a single-atom-thick and two-dimensional carbon material, has attracted great attention recently. Because of its unique electrical, physical, and optical properties, graphene has great potential to be a novel alternative to carbon nanotubes in biosensing. We demonstrate the use of large-sized CVD grown graphene films configured as field-effect transistors for real-time biomolecular sensing. Glucose or glutamate molecules were detected by the conductance change of the graphene transistor as the molecules are oxidized by the specific redox enzyme (glucose oxidase or glutamic dehydrogenase) functionalized onto the graphene film. This study indicates that graphene is a promising candidate for the development of real-time nanoelectronic biosensors.

Original languageEnglish (US)
Pages (from-to)1485-1488
Number of pages4
JournalNanoscale
Volume2
Issue number8
DOIs
StatePublished - Aug 1 2010

ASJC Scopus subject areas

  • Materials Science(all)

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