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  • 08월 18일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제108회 대한화학회 학술발표회, 총회 및 기기전시회 Electrochemical Sensors and Biosensors for Chemical and Biochemical Analysis

2011년 9월 5일 14시 34분 05초
ELEC-7 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
금 14시 : 00분
전기화학 - Energy related materials & Electrochemistry
저자 및
연세대학교 화학과, Korea
Electrochemical sensors and biosensors based on electrochemiluminescence (ECL) of luminol and tris(2,2’-bipyridyl)ruthenium(II) (Ru(bpy)32+) electrochemiluminescence (ECL) haven developed over the last 10 years in my laboratory. In particular, ECL has attracted much attention as a powerful analytical tool due to its inherent sensitivity, selectivity, and wide linear dynamic range for a variety of analytes such as alkylamines, amino acids, NADH, and a number of pharmaceutical compounds. The ECL emission of the Ru(bpy)32+/analyte system presumably arises from the energetic electron transfer between the electrogenerated Ru(bpy)33+ and a strong reducing intermediate (reductant) formed by the oxidation of analytes. The reaction scheme for Ru(bpy)32+ ECL indicates that the starting material Ru(bpy)32+ is regenerated in-situ when it is immobilized on an electrode surface. Therefore, much efforts have been focused on the immobilization of Ru(bpy)32+ on an electrode surface, thus recycling Ru(bpy)32+ permanently in theory and making the detection system simpler in ECL-based chemical sensors, biosensors, and detectors in flowing streams such as high-performance liquid chromatography, capillary electrophoresis and microchip. In the present seminar, novel approaches for the preparation of the Ru(bpy)32+ ECL sensor will be presented. Electrochemical and ECL behaviors of the new ECL sensors will be presented along with their possible applications as chemical sensors and biosensors. In addition, electrochemical biosensing of carbohydrate and carbohydrate-binding proteins based on carbohydrate-stabilized gold nanoparticles will be discussed.