Journal
ADVANCED MATERIALS
Volume 27, Issue 5, Pages 831-836Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201403988
Keywords
bioelectronics; silicon nanowire field-effect transistors (FETs); bacteriorhodopsin; biological regulation; ionophores
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Funding
- U.S. Department of Energy, the Office of Basic Energy Sciences, the Division of Materials Sciences and Engineering
- U.S. Department of Energy [DE-AC52-07NA27344]
- Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]
- LSP program at LLNL
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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 fieldeffect transistor devices.
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