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Polymers 2017, 9(5), 155; doi:10.3390/polym9050155

Chemo-Electrical Gas Sensors Based on Conducting Polymer Hybrids

1
Hazards Monitoring Bionano Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, 34141 Daejeon, Korea
2
Department of Polymer Engineering, Graduate School, Chonnam National University, 77 Yongbong-ro, Buk-gu, 61186 Gwangju, Korea
3
School of Polymer Science and Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, 61186 Gwangju, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Po-Chih Yang
Received: 10 March 2017 / Revised: 24 April 2017 / Accepted: 24 April 2017 / Published: 26 April 2017
(This article belongs to the Special Issue Polymers for Chemosensing)
View Full-Text   |   Download PDF [4896 KB, uploaded 27 April 2017]   |  

Abstract

Conducting polymer (CP) hybrids, which combine CPs with heterogeneous species, have shown strong potential as electrical transducers in chemosensors. The charge transport properties of CPs are based on chemical redox reactions and provide various chemo-electrical signal transduction mechanisms. Combining CPs with other functional materials has provided opportunities to tailor their major morphological and physicochemical properties, often resulting in enhanced sensing performance. The hybrids can provide an enlarged effective surface area for enhanced interaction and chemical specificity to target analytes via a new signal transduction mechanism. Here, we review a selection of important CPs, including polyaniline, polypyrrole, polythiophene and their derivatives, to fabricate versatile organic and inorganic hybrid materials and their chemo-electrical sensing performance. We focus on what benefits can be achieved through material hybridization in the sensing application. Moreover, state-of-the-art trends in technologies of CP hybrid sensors are discussed, as are limitations and challenges. View Full-Text
Keywords: conducting polymers; composites; sensors; polypyrrole; polyaniline; polythiophene conducting polymers; composites; sensors; polypyrrole; polyaniline; polythiophene
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Park, S.J.; Park, C.S.; Yoon, H. Chemo-Electrical Gas Sensors Based on Conducting Polymer Hybrids. Polymers 2017, 9, 155.

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