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  • 03월 02일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제109회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Development and Application of an Electrochemical Dual Microsensor for Simultaneous O2/pH Measurements

2012년 2월 16일 11시 34분 38초
ELEC.P-1247 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
4월 25일 (수요일) 18:00~21:00
저자 및
하예진, 박선아1, 심준호2, 이영미
이화여자대학교 화학나노과학과, Korea
1이화여자대학교 화학 나노과학과, Korea
2대구대학교 화학·응용화학과, Korea
Simultaneous measurements of more than two biological analytes could be a key method for confirming their functional roles and relationship. For example, an O2/pH dual sensor is of interest since it can provide experimental data helpful to understand some biological mechanisms where O2 as well as pH change are involved. In this presentation, we demonstrate the development and characterization of O2/pH dual sensors. The developed sensor is composed of a working electrode possessing two Pt microdisks and a Ag/AgCl reference/counter electrode. Two Pt disks of the working electrode are modified independently with gas permeable membrane and electrodeposited metal for analyzing O2 concentration and pH, respectively. For an application, the O2/pH dual sensor is employed to measure O2 and proton concentrations at different parts of the surface of a rat kidney. The current and potential in response to O2 concentration and pH respectively, are measured simultaneously while the sensor is scanned over the rat kidney surface using scanning electrochemical microscope (SECM). This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2011-0005623).