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  • 09월 04일 13시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

Electrochemical Detection of Metal Ions and Biomolecules

등록일
2009년 9월 15일 19시 12분 05초
접수번호
1621
발표코드
금21F1분념 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 13시 : 30분
발표형식
분과기념
발표분야
전기화학 - Electrochemical Microchip Devices
저자 및
공동저자
곽주현
KAIST 화학과, Korea
The amperometric detection methods of chemical species, especially metal ions and biomolecules, using various elelectrodes will be broadly discussed. First, for the amperometric detection of the heavy metal ions, the anodic stripping volammetric technique can be selected as a very sensitive tool. For example, this traditional electrochemical technique was implemented to make a miniaturized low-power wireless remote environmental monitoring system with the help of modern semiconductor technique. Secondly, the enzyme-amplified electrochemical detection method was recently developed for the sensitive detection of biomolecules such as DNA and protein. We will discuss how to generate the enzyme-amplified amperometric signal caused by the DNA hybridization reaction or antigen-antibody interaction. For the enhanced detection of biomolecules, we developed a method combining the old and new techniques, namely anodic stripping voltammetry and enzyme-amplified electrochemical detection method. In brief, the silver metal was deposited by the immobilized enzyme with specific interaction of biomolecules at the modified electrode. When the accumulated silver metal is stripped out with anodic potential scan, the anodic current signal allows us the ultrasenstitive detection of biomolecules.

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