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학술발표회초록보기

초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

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

제109회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Graphene-based electrochemical detection of biomolecules

등록일
2012년 2월 21일 21시 20분 41초
접수번호
1317
발표코드
ELEC.P-1293 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 25일 (수요일) 18:00~21:00
발표형식
포스터
발표분야
전기화학
저자 및
공동저자
정한올, 박혜진, 김규원
인천대학교 화학과, Korea
In electrochemical biosensor applications, graphene, graphene oxide and reduced graphene oxide have usually been used as a platform for probe immobilization or an electrocatalyst for enhancing electrochemical signal. In this presentation we demonstrate graphene oxide as an electrochemical indicator as well as a platform of probe biomolecules, to probe target biomolecules such as DNA and protein. Bare gold film electrode was treated with mercaptopropionic acid to prepare negatively charged surface. A positively charged polymer was attached on the resulting surface through an electrostatic interaction. To immobilize graphene oxide, the positively charged polymer-immobilized gold electrode surfaces was exposed to graphene oxide solution. The graphene oxide-attached surface was modified with a probe DNA oligomer. We used the modified surfaces to detect target biomolecules such as thrombin. The electrochemical properties of graphene oxide were dependent upon the concentration of target biomolecules.

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