Three-dimensional, flexible nanoscale field-effect transistors as localized bioprobes

Bozhi Tian, Tzahi Cohen-Karni, Quan Qing, Xiaojie Duan, Ping Xie, Charles M. Lieber

Research output: Contribution to journalArticle

487 Citations (Scopus)

Abstract

Nanoelectronic devices offer substantial potential for interrogating biological systems, although nearly all work has focused on planar device designs. We have overcome this limitation through synthetic integration of a nanoscale field-effect transistor (nanoFET) device at the tip of an acute-angle kinked silicon nanowire, where nanoscale connections are made by the arms of the kinked nanostructure, and remote multilayer interconnects allow three-dimensional (3D) probe presentation. The acute-angle probe geometry was designed and synthesized by controlling cis versus trans crystal conformations between adjacent kinks, and the nanoFET was localized through modulation doping. 3D nanoFET probes exhibited conductance and sensitivity in aqueous solution, independent of large mechanical deflections, and demonstrated high pH sensitivity. Additionally, 3D nanoprobes modified with phospholipid bilayers can enter single cells to allow robust recording of intracellular potentials.

Original languageEnglish (US)
Pages (from-to)830-834
Number of pages5
JournalScience
Volume329
Issue number5993
DOIs
StatePublished - Aug 13 2010
Externally publishedYes

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Biosensing Techniques
Nanowires
Equipment Design
Equipment and Supplies
Nanostructures
Silicon
Phospholipids

ASJC Scopus subject areas

  • General

Cite this

Tian, B., Cohen-Karni, T., Qing, Q., Duan, X., Xie, P., & Lieber, C. M. (2010). Three-dimensional, flexible nanoscale field-effect transistors as localized bioprobes. Science, 329(5993), 830-834. https://doi.org/10.1126/science.1192033

Three-dimensional, flexible nanoscale field-effect transistors as localized bioprobes. / Tian, Bozhi; Cohen-Karni, Tzahi; Qing, Quan; Duan, Xiaojie; Xie, Ping; Lieber, Charles M.

In: Science, Vol. 329, No. 5993, 13.08.2010, p. 830-834.

Research output: Contribution to journalArticle

Tian, B, Cohen-Karni, T, Qing, Q, Duan, X, Xie, P & Lieber, CM 2010, 'Three-dimensional, flexible nanoscale field-effect transistors as localized bioprobes', Science, vol. 329, no. 5993, pp. 830-834. https://doi.org/10.1126/science.1192033
Tian, Bozhi ; Cohen-Karni, Tzahi ; Qing, Quan ; Duan, Xiaojie ; Xie, Ping ; Lieber, Charles M. / Three-dimensional, flexible nanoscale field-effect transistors as localized bioprobes. In: Science. 2010 ; Vol. 329, No. 5993. pp. 830-834.
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