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首页> 外文期刊>Chemistry: A European journal >Biofunctionalization of multiwalled carbon nanotubes by irradiation of electropolymerized poly(pyrrole-diazirine) films
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Biofunctionalization of multiwalled carbon nanotubes by irradiation of electropolymerized poly(pyrrole-diazirine) films

机译：通过电聚合的聚吡咯-重氮基薄膜的辐照实现多壁碳纳米管的生物功能化

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摘要

A photoactivatable poly(pyrrole-diazirine) film was synthesized and electropolymerized as a versatile tool for covalent binding of laccase and glucose oxidase on multiwalled carbon nanotube coatings and Pt, respectively. Irradiation of the functionalized nanotubes allowed photochemical grafting of laccase and its subsequent direct electrical wiring, as illustrated by the electrocatalytic reduction of oxygen. Moreover, covalent binding of glucose oxidase as model enzyme, achieved by UV activation of electropolymerized pyrrole-diazirine, allowed a glucose biosensor to be realized. This original method to graft biomolecules combines electrochemical and photochemical techniques. The simplicity of this new method allows it to be extended easily to other biological systems. A photoactivatable polymer that grafts biomolecules: A simple procedure to fabricate a photoactivatable polymer that uses diazirine groups to attach biomolecules covalently under UV irradiation is reported. For this purpose, a compound containing diazirine and pyrrole groups was synthesized, electropolymerized, and then irradiated in the presence of proteins on both carbon nanotubes and platinum electrodes (see figure).
机译：合成了可光活化的聚（吡咯-二嗪）薄膜，并将其电聚合为通用工具，用于将漆酶和葡萄糖氧化酶共价结合在多壁碳纳米管涂层和Pt上。功能化的纳米管的辐照允许漆酶的光化学接枝及其随后的直接电布线，如氧的电催化还原所示。而且，通过电聚合的吡咯-重氮嗪的紫外线活化而实现的葡萄糖氧化酶作为模型酶的共价结合使得葡萄糖生物传感器得以实现。这种嫁接生物分子的原始方法结合了电化学和光化学技术。这种新方法的简单性使其可以轻松地扩展到其他生物系统。嫁接生物分子的可光活化聚合物：报道了一种简单的程序来制造可光活化的聚合物，该聚合物使用重氮基团在紫外线辐射下共价连接生物分子。为此，合成了包含重氮基和吡咯基团的化合物，进行电聚合，然后在蛋白质存在的情况下将其辐照在碳纳米管和铂电极上（参见图）。

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