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A Study on the Microfabricated Clark-type Sensor for Measuring Dissolved Oxygen  

Park, Jung-Il (고려대 공대 대학원 전기공학과)
Chang, Jong-Hyeon (고려대 공대 대학원 전기공학과)
Choi, Myung-Ki (고려대 공대 대학원 전기공학과)
Lee, Dong-Young (울산대 의대 아산생명과학연구소)
Kim, Young-Mi (울산대 의대 아산생명과학연구소)
Pak, Jung-Ho (고려대 공대 전기전자전파공학부)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.56, no.8, 2007 , pp. 1450-1454 More about this Journal
Abstract
This paper presents a microfabricated Clark-type sensor which exactly can measure dissolved oxygen in the cell containing solution. We designed, fabricated, and characterized a microfabircated Clark-type oxygen sensor for measuring dissolved oxygen. The microfabricated oxygen sensor consists of 3-electrodes on a glass substrate, a FEP (Fluorinated ethylene propylene) oxygen-permeable membrane, and PDMS (Polydimethylsiloxane) reservoir for storing sample solution. Thin-film Ag/AgCl was employed as a reference electrode and its durability was verified by obtaining a stable open circuit potential for 2 hours against a commercial Ag/AgCl electrode and a stable cyclic voltammetry curve. Selectivity, response time, and linearity of the fabricated oxygen sensor were also verified well by cyclic voltammetry and amperometry depending. The fabricated oxygen sensor showed a 90% response time of 40sec and an excellent linearity with a correlation coefficient of 0.994.
Keywords
Clark-Type; Oxygen Sensor; Dissolved Oxygen; Mmembrane;
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Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 0
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