Polymer single-nanowire optical sensors

被引：262

作者：

Gu, Fuxing ^{[1
]}

Zhang, Lei ^{[2
]}

Yin, Xuefeng ^{[2
]}

Tong, Limin ^{[1
]}

机构：

[1] Zhejiang Univ, State Key Lab Modern Opt Instrumentat, Dept Opt Engn, Hangzhou 310027, Peoples R China

[2] Zhejiang Univ, Inst Microanalyt Syst, Dept Chem, Hangzhou 310027, Peoples R China

来源：

NANO LETTERS | 2008年 / 8卷 / 09期

关键词：

D O I：

10.1021/nl8012314

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report highly versatile nanosensors using polymer single nanowires. On the basis of the optical response of waveguiding polymer single nanowires when exposed to specimens, functionalized polymer nanowires are used for humidity sensing with a response time of 30 ms and for NO2 and NH3 detection down to subparts-per-million level. The compact and flexible sensing scheme shown here may be attractive for very fast detection in physical, chemical, and biological applications with high sensitivity and small footprint.

引用

页码：2757 / 2761

页数：5

共 31 条

[1] Polymers in sensor applications [J].

Adhikari, B ;

Majumdar, S .

PROGRESS IN POLYMER SCIENCE, 2004, 29 (07) :699-766

[2] Humidity-sensing inverse opal hydrogels [J].

Barry, RA ;

Wiltzius, P .

LANGMUIR, 2006, 22 (03) :1369-1374

[3] Optical fiber-based evanescent ammonia sensor [J].

Cao, WQ ;

Duan, YX .

SENSORS AND ACTUATORS B-CHEMICAL, 2005, 110 (02) :252-259

[4] Stable and highly sensitive gas sensors based on semiconducting oxide nanobelts [J].

Comini, E ;

Faglia, G ;

Sberveglieri, G ;

Pan, ZW ;

Wang, ZL .

APPLIED PHYSICS LETTERS, 2002, 81 (10) :1869-1871

[5] Nanowire nanosensors for highly sensitive and selective detection of biological and chemical species [J].

Cui, Y ;

Wei, QQ ;

Park, HK ;

Lieber, CM .

SCIENCE, 2001, 293 (5533) :1289-1292

[6] NO2-induced optical absorbance changes in semiconductor polyaniline thin films [J].

Elizalde-Torres, J ;

Hu, HL ;

García-Valenzuela, A .

SENSORS AND ACTUATORS B-CHEMICAL, 2004, 98 (2-3) :218-226

[7] Polymer surface modification for the attachment of bioactive compounds [J].

Goddard, J. M. ;

Hotchkiss, J. H. .

PROGRESS IN POLYMER SCIENCE, 2007, 32 (07) :698-725

[8] Direct drawing of suspended filamentary micro- and nanostructures from liquid polymers [J].

Harfenist, SA ;

Cambron, SD ;

Nelson, EW ;

Berry, SM ;

Isham, AW ;

Crain, MM ;

Walsh, KM ;

Keynton, RS ;

Cohn, RW .

NANO LETTERS, 2004, 4 (10) :1931-1937

[9] High response and stability in CO and humidity measures using a single SnO2 nanowire [J].

Hernandez-Ramirez, F. ;

Tarancon, A. ;

Casals, O. ;

Arbiol, J. ;

Romano-Rodriguez, A. ;

Morante, J. R. .

SENSORS AND ACTUATORS B-CHEMICAL, 2007, 121 (01) :3-17

[10] Polyaniline nanofibers: Facile synthesis and chemical sensors [J].

Huang, JX ;

Virji, S ;

Weiller, BH ;

Kaner, RB .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (02) :314-315

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