A Review on Chemsensors

R. Saxena, S. Saxena
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Abstract

Chemsensors have been playing a crucial role in various aspects of biomedical science, analytical and environmental chemistry. The toxic metal ions like Zn, Cd, Cu, Pb and Hg have increased gradually but now have reached an alarming situation, crossing the threshold value. Due to high toxicity of these heavy metals there is an obvious need for a sensor system to detect their presence. Chemsensors including surface acoustic wave sensors, enzymes, carbon nanotubes, nanoparticles, and chromophore-based sensors have attracted increasing attention over the last few years. Chemsensors prove very promising as the system is rapid, selective, sensible, low-cost, easy-to-use, and has the ability to provide real-time signals. However, recently, considerable effort has been devoted to the synthesis of sterically encumbered selenium containing species reported to display strong affinities with Hg2+ or Ag2+. This chapter reviews the basic principles involved in the design of chemsensors, their variety and applications in various established and emerging fields.
化学传感器研究进展
化学传感器在生物医学科学、分析化学和环境化学的各个方面发挥着至关重要的作用。Zn、Cd、Cu、Pb、Hg等有毒金属离子逐渐增加,目前已达到警戒状态,已超过阈值。由于这些重金属的高毒性,显然需要一个传感器系统来检测它们的存在。化学传感器包括表面声波传感器、酶、碳纳米管、纳米颗粒和基于发色团的传感器,在过去的几年里引起了越来越多的关注。化学传感器被证明是非常有前途的,因为该系统具有快速、选择性、敏感、低成本、易于使用以及能够提供实时信号的能力。然而,近年来,大量研究人员致力于合成与Hg2+或Ag2+具有强亲和性的位阻含硒物质。本章回顾了化学传感器设计的基本原理,它们的种类和在各种已建立和新兴领域的应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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