ZnS/silica nanocable field effect transistors as biological and chemical nanosensors

H. He*, Yi Y. Zhang, Jin Liu, Daniel Moore, Gang Bao, Zhong L. Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

75 Scopus citations

Abstract

Compound semiconductor/isolator (ZnS/silica) core/shell nanocables have been used to fabricate single nanowire-based field effect transistors. Using the surface-adsorbed charged molecules as the gate, the nanocable-based devices show potential for label-free, real-time, and sensitive detection of biological species. After chemical modification, amine- and oxide-functionalized nanocables exhibit linear pH-dependent conductance, which could be elucidated in terms of the changes of surface charge during protonation and deprotonation. Selective biological recognition of nanocable sensors has been demonstrated using biotinylation.

Original languageEnglish (US)
Pages (from-to)12152-12156
Number of pages5
JournalJournal of Physical Chemistry C
Volume111
Issue number33
DOIs
StatePublished - Aug 23 2007

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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