Ferrocene-modified multiwalled carbon nanotubes as building block for construction of reagentless enzyme-based biosensors
作者: Jian-Ding QiuMin-Qiang DengRu-Ping LiangMeng Xiong
作者单位: 1Institute for Advanced Study and Department of Chemistry, Nanchang University, Nanchang 330031, PR China
2Department of Chemical Engineering, Pingxiang College, Pingxiang 337055, PR China
刊名: Sensors & Actuators: B. Chemical, 2008, Vol.135 (1), pp.181-187
来源数据库: Elsevier Journal
DOI: 10.1016/j.snb.2008.08.017
关键词: FerroceneMultiwalled carbon nanotubes3-(Aminopropyl) triethoxysilaneGlucose oxidase biosensorChitosan
原始语种摘要: Abstract(#br)A novel amperometric sensor for glucose was constructed by entrapping glucose oxidase (GOD) in a new chitosan composite doped with ferrocene monocarboxylic acid-modified 3-(aminopropyl) triethoxysilane enwrapping multiwalled carbon nanotubes (FMC-AMWNTs). The approach was very simple, timesaving and effectively prevented the leakage of the ferrocene monocarboxylic acid mediator during measurements. The entrapped FMC-AMWNTs composite performed excellent redox electrochemistry and acted as an electron transfer mediator. This matrix showed a biocompatible microenvironment for retaining the native activity of the entrapped GOD and a very low mass transport barrier to the substrate. Under optimal conditions, this biosensor was able to detect glucose in the linear range of...
全文获取路径: Elsevier  (合作)
影响因子:3.535 (2012)