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Chemo-Electrical Gas Sensors Based on Conducting Polymer Hybrids

机译:基于导电聚合物杂化体的化学气体传感器

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摘要

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.
机译:导电聚合物(CP)杂化体将CP与异质物质结合在一起,已显示出作为化学传感器中电传感器的强大潜力。 CP的电荷传输特性基于化学氧化还原反应,并提供各种化学电信号转导机制。 CPs与其他功能材料的结合提供了调整其主要形态和物理化学特性的机会,这通常会增强传感性能。杂种可通过新的信号转导机制提供扩大的有效表面积,以增强对目标分析物的相互作用和化学特异性。在这里,我们回顾了重要的CP的选择,包括聚苯胺,聚吡咯,聚噻吩及其衍生物,以制造通用的有机和无机杂化材料及其化学电感应性能。我们专注于在传感应用中通过材料杂交可以实现哪些好处。此外,还讨论了CP混合传感器技术的最新趋势以及局限性和挑战。

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