Nanowire Chemical/Biological Sensors: Status and a Roadmap for the Future

被引：193

作者：

Fennell, John F., Jr. ^{[1
,2
]}

Liu, Sophie F. ^{[1
,2
]}

Azzarelli, Joseph M. ^{[1
,2
]}

Weis, Jonathan G. ^{[1
,2
]}

Rochat, Sebastien ^{[1
,2
]}

Mirica, Katherine A. ^{[1
,2
]}

Ravnsbaek, Jens B. ^{[1
,2
]}

Swager, Timothy M. ^{[1
,2
]}

机构：

[1] MIT, Dept Chem, Cambridge, MA 02139 USA

[2] MIT, Inst Soldier Nanotechnol, Cambridge, MA 02139 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2016年 / 55卷 / 04期

基金：

美国国家科学基金会; 美国国家卫生研究院;

关键词：

metal oxides; nanocarbons; nanowires; sensors; transductionmechanism; WALLED CARBON NANOTUBES; LABEL-FREE DETECTION; CONDUCTING POLYMER NANOWIRES; MOLECULAR WIRE APPROACH; GAS-SENSING PROPERTIES; ELECTRICAL DETECTION; THIN-FILMS; OXIDE NANOSTRUCTURES; CONJUGATED POLYMERS; SELECTIVE DETECTION;

D O I：

10.1002/anie.201505308

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：1266 / 1281

页数：16

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