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  • 09월 05일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제120회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Use of Nanoscale Functional Materials in Electrochemiluminescence: Making Electrochemiluminescence Brighter

2017년 9월 14일 17시 17분 59초
ELEC2-3 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
금 10시 : 20분
Electrochemistry - Recent Advances in Electrochemistry
저자 및
Joohoon Kim
Department of Chemistry, Kyung Hee University, Korea
Electrochemiluminescence (ECL) is a unique luminescent phenomenon in which electrochemically generated species are involved to form excited states emitting light. Since ECL provides beneficial characteristics over photoluminescence, including low background emission, good temporal and spatial controllability, robustness, and instrumental simplicity, the ECL technique has been utilized as a versatile tool in a variety of electroanalytical applications. Especially, since Bard and his co-workers presented for the first time a new approach for generating ECL (i.e., coreactant pathways) in the 1980s, the ECL technique has been achievable in aqueous environment, and thus been popular to the clinical and bioanalytical applications. To further expand the usefulness of ECL in the applications, many promising approaches have been suggested for amplification of ECL signals. Of the approaches, we recently reported the use of nanoscale functional materials such as dendrimer-encapsulated nanoparticles and chemically converted graphenes for the enhancement of ECL. In the present talk, as a humble first-step to the long journey toward making ECL brighter, we discuss mainly about the use of dendrimers for enhanced ECL. First, we discuss highly enhanced ECL of Ru(bpy)32+ (bpy = 2,2’-bipyridyl) or luminol with appropriate coreactants on electrodes modified with amine-terminated dendrimers encapsulating catalytic nanoparticles. Second, we discuss intense ECL of Ru(bpy)32+ in the presence of amine-terminated dendrimers as a coreactant especially when utilizing intramolecular reactions between Ru(bpy)32+ and dendrimers.