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Sensing at the Surface of Graphene Field‐Effect Transistors

Fu, Wangyang ; Jiang, Lin ; van Geest, Erik P. ; Lima, Lia M. C. ; Schneider, Grégory F.

Advanced materials (Weinheim), 2017-02, Vol.29 (6), p.np-n/a [Periódico revisado por pares]

Germany: Wiley Subscription Services, Inc

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  • Título:
    Sensing at the Surface of Graphene Field‐Effect Transistors
  • Autor: Fu, Wangyang ; Jiang, Lin ; van Geest, Erik P. ; Lima, Lia M. C. ; Schneider, Grégory F.
  • Assuntos: Adsorption ; Biochemistry ; Covalence ; debye screening ; Deoxyribonucleic acid ; Detection ; DNA ; Electrolytic cells ; electronic biochemical sensors ; Field effect transistors ; Graphene ; Nanotubes ; Obstacles ; Proteins ; Semiconductor devices ; Sensitivity ; Sensors ; Surface chemistry ; surface functionalization ; Transistors
  • É parte de: Advanced materials (Weinheim), 2017-02, Vol.29 (6), p.np-n/a
  • Notas: ObjectType-Article-2
    SourceType-Scholarly Journals-1
    ObjectType-Feature-3
    content type line 23
    ObjectType-Review-1
    ObjectType-Article-1
    ObjectType-Feature-2
  • Descrição: Recent research trends now offer new opportunities for developing the next generations of label‐free biochemical sensors using graphene and other two‐dimensional materials. While the physics of graphene transistors operated in electrolyte is well grounded, important chemical challenges still remain to be addressed, namely the impact of the chemical functionalizations of graphene on the key electrical parameters and the sensing performances. In fact, graphene – at least ideal graphene – is highly chemically inert. The functionalizations and chemical alterations of the graphene surface – both covalently and non‐covalently – are crucial steps that define the sensitivity of graphene. The presence, reactivity, adsorption of gas and ions, proteins, DNA, cells and tissues on graphene have been successfully monitored with graphene. This review aims to unify most of the work done so far on biochemical sensing at the surface of a (chemically functionalized) graphene field‐effect transistor and the challenges that lie ahead. The authors are convinced that graphene biochemical sensors hold great promise to meet the ever‐increasing demand for sensitivity, especially looking at the recent progresses suggesting that the obstacle of Debye screening can be overcome. The work done so far on biochemical sensing at the surface of a (chemically functionalized) graphene field‐effect transistor and the challenges that lie ahead, including the recent progress in meeting the ever increasing demand for sensitivity by overcoming the obstacle of Debye screening, are discussed.
  • Editor: Germany: Wiley Subscription Services, Inc
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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