Solution-Gated Graphene Transistors for Chemical and Biological Sensors

Feng Yan, Meng Zhang, Jinhua Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

95 Citations (Scopus)

Abstract

Graphene has attracted much attention in biomedical applications for its fascinating properties. Because of the well-known 2D structure, every atom of graphene is exposed to the environment, so the electronic properties of graphene are very sensitive to charged analytes (ions, DNA, cells, etc.) or an electric field around it, which renders graphene an ideal material for high-performance sensors. Solution-gated graphene transistors (SGGTs) can operate in electrolytes and are thus excellent candidates for chemical and biological sensors, which have been extensively studied in the recent 5 years. Here, the device physics, the sensing mechanisms, and the performance of the recently developed SGGT-based chemical and biological sensors, including pH, ion, cell, bacterial, DNA, protein, glucose sensors, etc., are introduced. Their advantages and shortcomings, in comparison with some conventional techniques, are discussed. Conclusions and challenges for the future development of the field are addressed in the end. KGaA, Weinheim.
Original languageEnglish
Pages (from-to)313-331
Number of pages19
JournalAdvanced healthcare materials
Volume3
Issue number3
DOIs
Publication statusPublished - 1 Jan 2014

Keywords

  • Biosensors
  • Chemical sensors
  • Graphene
  • Transistors

ASJC Scopus subject areas

  • Biomaterials
  • Biomedical Engineering
  • Pharmaceutical Science

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