Nanowire Chemical/Biological Sensors: Status and a Roadmap for the Future
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201505308.pdf
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4.38 MB
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Adobe PDF
Checksum (MD5)
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Author(s)
Fennell, John Francis
Liu, Sophie
Azzarelli, Joseph M.
Weis, Jonathan Garrett
Rochat, Sebastien
Mirica, Katherine
Ravnsbaek, Jens Bomholdt
Swager, Timothy M
Date Issued
December 2015
Journal
Angewandte Chemie International Edition
Publisher
Wiley Blackwell
Citation
Fennell, John F. “Nanowire Chemical/Biological Sensors: Status and a Roadmap for the Future.” Angewandte Chemie International Edition 55, 4 (December 2015): 1266–1281 © 2015 Wiley-VCH Verlag
Version
Author's final manuscript
Abstract
Chemiresistive sensors are becoming increasingly important as they offer an inexpensive option to conventional analytical instrumentation, they can be readily integrated into electronic devices, and they have low power requirements. Nanowires (NWs) are a major theme in chemosensor development. High surface area, interwire junctions, and restricted conduction pathways give intrinsically high sensitivity and new mechanisms to transduce the binding or action of analytes. This Review details the status of NW chemosensors with selected examples from the literature. We begin by proposing a principle for understanding electrical transport and transduction mechanisms in NW sensors. Next, we offer the reader a review of device performance parameters. Then, we consider the different NW types followed by a summary of NW assembly and different device platform architectures. Subsequently, we discuss NW functionalization strategies. Finally, we propose future developments in NW sensing to address selectivity, sensor drift, sensitivity, response analysis, and emerging applications.
MIT Department
Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies
Massachusetts Institute of Technology. Department of Chemistry
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Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1002/anie.201505308
