A silk derived carbon fiber mat modified with Au@Pt urchilike nanoparticles: A new platform as electrochemical microbial biosensor.
作者： Liu Deng , Shaojun Guo , Ming Zhou , Ling Liu , Chang Liu
DOI: 10.1016/J.BIOS.2010.02.005
关键词:
摘要: We present here a facile and efficient route to prepare silk derived carbon mat modified with Au@Pt urchilike nanoparticles (Au@Pt NPs) develop an Escherichia coli (E. coli)-based electrochemical sensor using this material. Silk is natural protein fiber, it abundant kinds of functionalities which are important in the development The 5-derived fiber have amino, pyridine carbonyl functional groups, these existent allow NPs self-assemble on surface provide biocompatible microenvironment for bacteria. S-derived sensitive detect E. activities low detection limit, where glucose used as prelimiltary substrate evaluate them. performance Au@Pt/carbon based biosensor much better than that commercial paper biosensor. high sensitivity stems from unique electrocatalytic properties quinone groups presented fiber. This also tested organophosphate pesticides, fenamiphos. relative inhibition activity linear -log[fenamiphos] at concentration range 0.5 mg/L 36.6 lowest observable effect (LOEC) 0.09 mg/L. possesses conductivity, biocompatibility be can advanced electrode materials microbial improvement. material shows potential applications environmental monitoring. (C) 2010 Elsevier B.V. All rights reserved.
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