Carbon nanotube transistor controlled by a biological ion pump gate

Shih Chieh J Huang, Alexander B. Artyukhin, Nipun Misra, Julio A. Martinez, Pieter A. Stroeve, Costas P. Grigoropoulos, Jiann Wen W Ju, Aleksandr Noy

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

We report a hybrid bionanoelectronic transistor that has a local ATP-powered protein gate. ATP-dependent activity of a membrane ion pump, Na +/K+-ATPase, embedded in a lipid membrane covering the carbon nanotube, modulates the transistor output current by up to 40%. The ion pump gates the device by shifting the pH of the water layer between the lipid bilayer and nanotube surface. This transistor is a versatile bionanoelectronic platform that can incorporate other membrane proteins.

Original languageEnglish (US)
Pages (from-to)1812-1816
Number of pages5
JournalNano Letters
Volume10
Issue number5
DOIs
StatePublished - May 12 2010
Externally publishedYes

Keywords

  • Carbon nanotube
  • Ion pump
  • Lipid bilayer
  • Membrane protein
  • Nanobioelectronics

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering

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