Lithography-free fabrication of bistability graphene FET biosensor

Xueqiu You, James Jungho Pak

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

4 Citations (Scopus)

Abstract

A novel non-lithographic, contamination-free technique for the fabrication of graphene field effect transistors (GFET) is presented. The GFET was modified with C reactive protein aptamer. Iron nanoparticles were immobilized on the GFET channel surface by using an aptamer-target protein (CRP)-aptamer sandwich method. Bistability signal was obtained by backgate voltage up/down sweeping. The bistability phenomenon caused by the target protein induced NPs adsorption demonstrates a novel high sensitive biosensing method.

Original languageEnglish
Title of host publicationProceedings of the IEEE Conference on Nanotechnology
Pages617-620
Number of pages4
DOIs
Publication statusPublished - 2011 Dec 1
Event2011 11th IEEE International Conference on Nanotechnology, NANO 2011 - Portland, OR, United States
Duration: 2011 Aug 152011 Aug 19

Other

Other2011 11th IEEE International Conference on Nanotechnology, NANO 2011
CountryUnited States
CityPortland, OR
Period11/8/1511/8/19

    Fingerprint

ASJC Scopus subject areas

  • Bioengineering
  • Electrical and Electronic Engineering
  • Materials Chemistry
  • Condensed Matter Physics

Cite this

You, X., & Pak, J. J. (2011). Lithography-free fabrication of bistability graphene FET biosensor. In Proceedings of the IEEE Conference on Nanotechnology (pp. 617-620). [6144386] https://doi.org/10.1109/NANO.2011.6144386