期刊
ANALYTICAL CHEMISTRY
卷 83, 期 13, 页码 5436-5441出版社
AMER CHEMICAL SOC
DOI: 10.1021/ac2011087
关键词
-
资金
- National Science Foundation
- Air Force Office of Scientific Research
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1140656] Funding Source: National Science Foundation
Self-powered sensors are able to automatically signal the presence of a specific analyte without the aid of an external power source, making them useful as potential devices for batteryless sensing. Here, we present a self-powered enzymatic ethylenediaminetetraacetic acid (EDTA) sensor based on the inhibition and subsequent activation of glucose oxidase (GOx)-based bioelectrodes within the framework of a biofuel cell. Although EDTA is not redox-active, it is detected by the activation of a Cu2+-inhibited GOx bioanode in either a typical amperometric sensor (using a standard three-electrode setup) or in a self-powered sensor where the GOx bioanode is coupled to a platinum cathode. The sensors are able to detect concentrations of EDTA that correspond to the amount of Cu2+ that is used to inhibit the enzymatic electrode. The self-powered sensor shows a greater than 10-fold increase in power output when it is activated by the presence of EDTA. This represents the first time that a non-redox-active analyte has been detected in a self-powered sensor that turns on in the presence of said analyte.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据