Journal
ENERGY & ENVIRONMENTAL SCIENCE
Volume 6, Issue 2, Pages 494-499Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ee23718k
Keywords
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Funding
- Airforce
- MURI
- U.S. Department of Energy, Office of Basic Energy Sciences [DE-FG02-07ER46394]
- NSF
- Knowledge Innovation Program of the Chinese Academy of Sciences [KJCX2-YW-M13]
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [0946418] Funding Source: National Science Foundation
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Based on a metal-semiconductor-metal structure, the performance of a ZnO nanowire (NW) based sensor has been studied for detecting Immunoglobulin G (IgG)-targeted protein. By applying a compressive strain, the piezotronic effect on ZnO NW protein sensors can not only increase the resolution of such sensors by tens of times, but also largely improve the detection limit and sensitivity. A theoretical model is proposed to explain the observed behaviors of the sensor. This study demonstrates a prospective approach to raise the resolution, improve the detection limit and enhance the general performance of a biosensor.
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