Research Center for Biomimetic Functional Materials and Sensing Devices, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, 230031, PR China.
Nanoscale. 2012 Mar 21;4(6):1948-63. doi: 10.1039/c2nr11757f. Epub 2012 Feb 15.
Since the discovery of carbon nanotubes (CNTs), they have drawn considerable research attention and have shown great potential application in many fields due to their unique structural, mechanical, and electronic properties. However, their native insolubility severely holds back the process of application. In order to overcome this disadvantage and broaden the scope of their application, chemical functionalization of CNTs has attracted great interest over the past several decades and produced various novel hybrid materials with specific applications. Notably, the rapid development of functionalized CNTs used as electrochemical sensors has been successfully witnessed. In this featured article, the recent progress of electrochemical sensors based on functionalized CNTs is discussed and classified according to modifiers covering organic (oxygen functional groups, small organic molecules, polymers, DNA, protein, etc.), inorganic (metal nanoparticles, metal oxide, etc.) and organic-inorganic hybrids. By employing some representative examples, it will be demonstrated that functionalized CNTs as templates, carriers, immobilizers and transducers are promising for the construction of electrochemical sensors.
自碳纳米管（CNTs）被发现以来，由于其独特的结构、力学和电子性能，它们引起了相当多的研究关注，并在许多领域显示出巨大的潜在应用。然而，其本身的不溶性严重阻碍了其应用进程。为了克服这一缺点并拓宽其应用范围，过去几十年中，对 CNTs 的化学功能化引起了极大的兴趣，并产生了具有特定应用的各种新型杂化材料。值得注意的是，功能化 CNTs 作为电化学传感器的快速发展已经得到了成功见证。在这篇专题文章中，根据修饰剂（包括有机（氧官能团、小分子、聚合物、DNA、蛋白质等）、无机（金属纳米粒子、金属氧化物等）和有机-无机杂化）对基于功能化 CNTs 的电化学传感器的最新进展进行了讨论和分类。通过采用一些有代表性的例子，将证明功能化 CNTs 作为模板、载体、固定剂和换能器在电化学传感器的构建中具有广阔的应用前景。
