Magnetically controlled bioelectrocatalytic system based on ferrocene-tagged magnetic nanoparticles by thiol-ene reaction
Magnetically controlled bioelectrocatalytic system based on ferrocene-tagged magnetic nanoparticles by thiol-ene reaction
复制标题
基于硫醇-烯反应的二茂铁标记磁性纳米粒子的磁控生物电催化系统
DOI：
10.1016/j.electacta.2012.02.089
复制
发表时间：
2012-05-01
影响因子：
6.6
通讯作者：
Xian, Yuezhong
中科院分区：
文献类型：
--
作者：
Liang, Cong;Jing, Li;Xian, Yuezhong
基于紫外光诱导的硫醇-烯点击化学，发展了一种简单、通用的在纳米Fe3O4表面引入电化学基团的方法。合成了硫醇封端的Fe3O4纳米粒子，并在365 nm紫外光下与乙烯基二茂铁反应。利用粉末X射线衍射仪、透射电子显微镜、傅里叶变换红外光谱仪、振动样品磁强计等对功能化磁性纳米粒子进行了表征。所得纳米复合材料具有磁性和电化学活性。基于Fe3O4纳米粒子的超顺磁性和二茂铁的电催化活性，开发了一种可回收的磁控葡萄糖氧化生物电催化体系。利用外加磁体实现二茂铁功能化纳米粒子的生物催化活性和可回收利用的切换，为生物电传感提供了一种简单、绿色、方便的策略。(C)2012爱思唯尔有限公司。保留所有权利。
A simple and versatile method for the introduction of electrochemical moieties onto the surface of Fe3O4 nanoparticles has been developed based on UV-induced thiol-ene click chemistry. Thiol-terminated Fe3O4 nanoparticles were synthesized and further reacted with vinylferrocence under 365 nm UV. The functionalized magnetic nanoparticles were characterized using a powder X-ray diffractometer (XRD), transmission electron microscope (TEM), Fourier transform infrared spectroscope (FTIR), and vibrating sample magnetometer (VSM). The resulting nanocomposites possess of magnetism and electrochemical activity. Based on the superparamagnetism of Fe3O4 nanoparticles and the electrocatalytic activity of ferrocene, a recyclable, magneto-controlled bioelectrocatalytic system for glucose oxidation is developed. The switching of the biocatalytic activity and recyclable usage of the ferrocene functionalized nanoparticles by means of the external magnet could provide a simple, green and convenient strategy for bioelectrosensing. (C) 2012 Elsevier Ltd. All rights reserved.