山东科学 ›› 2015, Vol. 28 ›› Issue (1): 43-46.doi: 10.3976/j.issn.1002-4026.2015.01.007

• 生物传感器 • 上一篇    下一篇

基于沉金电极修饰醛氧化酶的甲醛气体传感器

高广恒,毕春元,朱思荣,周万里,赵晓华,张利群,史建国   

  1. 1.山东省科学院中日友好生物技术研究中心,山东省生物传感器重点实验室,山东 济南 250014; 2.山东省科学院生物研究所,山东 济南 250014
  • 收稿日期:2014-05-26 出版日期:2015-02-20 发布日期:2015-02-20
  • 通信作者: 史建国(1960-),男,博士,研究员,研究方向为工业生物过程糖分析的生物传感器及相关系统的研究。 E-mail:shijg@sdas.org
  • 作者简介:高广恒(1984-),男,硕士,研究方向为信号采集与处理、生物传感器设计与应用。Email: hgg5738@163.com
  • 基金资助:
    山东省科技发展计划项目(2014GSF121023)

Analdehyse oxidase modified gold electrode based formaldehyde gas sensor

GAO Guangheng,BI Chunyuan,ZHU Sirong, ZHOU Wanli,   

  1. 1. Shandong Provincial Key Laboratory of Biosensors, Biotechnology Center, Shandong Academy of Sciences, Jinan 250014, China; 2. Institute of Biology, Shandong Academy of Sciences, Jinan 250014, China
  • Received:2014-05-26 Online:2015-02-20 Published:2015-02-20

摘要: 本文设计了一种基于醛氧化酶原理来检测甲醛的气体传感器,该传感器的敏感元件以沉金电极为基底经过自组装、活化、吸附等工艺制作而成,对甲醛有较好的电催化氧化作用。利用该电极,以LPC1788为处理核心设计了一套生物传感器甲醛气体检测装置。利用0.1 mg/m3的甲醛气体对传感器进行测试,结果表明传感器对甲醛响应时间为20 s、恢复时间短,检测下限为0.01 mg/m3。

关键词: 醛氧化酶, 沉金电极, LPC1788, 生物传感器

Abstract: We designed a formaldehyde gas detection sensor based on the aldehyde oxidase principle. Its sensitive component was manufactured through such process as selfassembly, activation, and adsorption with gold electrode as substrate, and had better electrocatalysis and oxidation effect to formaldehyde. We further designed a formaldehyde gas detection biosensor with the electrode and a LPC1788 chip as its CPU. The biosensor was tested with formaldehyde gas of 0.1 mg/m3.Results demonstrate that the sensor has as rapid response time as 20 s, shorter recovery time and lower detection limit as 0.01 mg/m3 to formaldehyde gas.

Key words: aldehyde oxidase, gold electrode, biosensor, LPC1788

中图分类号: 

  • TP274

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