期刊
ACS APPLIED MATERIALS & INTERFACES
卷 1, 期 6, 页码 1166-1168出版社
AMER CHEMICAL SOC
DOI: 10.1021/am900185c
关键词
switchable interface; local pH change; enzyme; modified electrode; magnetic nanoparticles; logic gate
资金
- NSF [DMR-0706209]
- ONR [N00014-08-1-1202]
- SRC [2008-RJ-1839G]
- Clarkson University
An electrode surface modified with a pH-sensitive polymeric brush was reversibly activated by local pH changes produced in situ by glucose oxidase associated with magnetic nanoparticles confined at the surface in the presence of an external magnet. The system mimics Boolean AND logic gate, with the magnetic and chemical input signals stimulating the electrochemical reactions at the switchable interface. Biomedical applications of the smart interface controlled by enzymatic reactions through local pH changes are anticipated in various implantable biomedical devices.
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