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首页> 外文会议>Sensors, actuators, and microsystems general session;Meeting of The Electrochemical Society >Co-doped ZnO Nanomaterials as a Novel Platform for Hydrogen Peroxide Biosensing
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Co-doped ZnO Nanomaterials as a Novel Platform for Hydrogen Peroxide Biosensing

机译：共掺杂ZnO纳米材料作为过氧化氢生物传感的新型平台

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Co-doped ZnO nanofilms have been synthesized successfully on indium tin oxide glass by direct electrochemical deposition. They have been using as platforms to immobilize horseradish peroxidase enzyme and to enhance the response of hydrogen peroxide. The structure and morphology of Co-doped ZnO film have been characterized and the electrochemical testaments have been preformed to evaluate the sensing abilities. It was found that the Co-doped ZnO nanofilms had good conductivity and fast electron transfer in electrocatalytic reduction. According to the amperometry response, a broad linear response was in the range of 0.05 to. 1.15 mM and the detection limit was 13 μM (S/N=3) within 10 s at an applied working potential of -0.3 V. The sensitivity and K_m~(app) value for the electrode were 22.7 μA/mM and 2.93 mM, respectively. The proposed biosensor was not affected by other pollutants and maintained nearly 90% of its original activity after a monthly storage.
机译：通过直接电化学沉积已经成功地在氧化铟锡玻璃上合成了共掺杂的ZnO纳米薄膜。它们已被用作固定辣根过氧化物酶和增强过氧化氢反应的平台。表征了Co掺杂ZnO薄膜的结构和形貌，并进行了电化学测试以评价其传感能力。发现Co掺杂的ZnO纳米膜在电催化还原中具有良好的电导率和快速的电子转移。根据电流分析法响应，宽线性响应在0.05至范围内。在-0.3 V的施加工作电势下，在10 s内，检测限为1.15 mM（S / N = 3），为13μM（S / N = 3）。电极的灵敏度和K_m〜（app）值为22.7μA/ mM和2.93 mM，分别。所提议的生物传感器不受其他污染物的影响，并且在每月存储后保持其原始活性的近90％。

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