Tunuguntla RH, Bangar MA, Kim K, Stroeve P, Grigoropoulos C, Ajo-Franklin CM, Noy A. Bioelectronic light-gated transistors with biologically tunable performance.
Adv Mater 2015;
27:831-836. [PMID:
25410490 DOI:
10.1002/adma.201403988]
[Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 10/13/2014] [Indexed: 06/04/2023]
Abstract
Light-activated bioelectronic silicon nanowire transistor devices are made by fusing proteoliposomes containing a bacteriorhodopsin (bR) proton pump onto the nanowire surface. Under green-light illumination, bR pumps protons toward the nanowire, and the pH gradient developed by the pump changes the transistor output. Furthermore, co-assembly of small biomolecules that alter the bilayer permeability to other ions can upregulate and downregulate the response of field-effect transistor devices.
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