Nano self-assembled nanoparticle ion-sensitive field-effect transistors for acetylcholine biosensing

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

We present an inexpensive way to fabricate high-performance nanoparticle based ion-sensitive field-effect transistors (ISFETs) for the acetylcholine bioscnsing application. The fabrication is implemented with a low-cost layer-by-layer nano self-assembly and microfabrication techniques. Self-assembled silica nanoparticle thin film and indium oxide nanoparticle thin film work as the gate dielectric and semiconducting channel respectively. The ISFETs operate at a low-voltage range of less than 2 V, and has a high mobility of 43.10 cm2/Vs. Acetylcholine in a concentration as low as 100 nM could be detected with this sensor. The results presented herein suggest a route to inexpensive, high mobility ion-sensitive field-effect transistors for biosensing applications.

Original languageEnglish (US)
Title of host publicationProceedings of the 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE NEMS 2007
Pages382-385
Number of pages4
DOIs
StatePublished - Aug 28 2007
Event2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE NEMS 2007 - Bangkok, Thailand
Duration: Jan 16 2007Jan 19 2007

Publication series

NameProceedings of the 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE NEMS 2007

Other

Other2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE NEMS 2007
CountryThailand
CityBangkok
Period1/16/071/19/07

Keywords

  • Biosensor
  • Field-effect transistor
  • Nano self-assembly
  • Nanoparticle

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