화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2006년 봄 (04/20 ~ 04/21, 대구 인터불고 호텔)
권호 12권 1호, p.384
발표분야 생물화공
제목 Immobilization of avidin on multi-wall carbon nanotube for biomedical application
초록 There has been intense interest on carbon nanotubes since their discovery by Iijima in 1991 because of their excellent mechanical, electrical and nonlinear optical properties. These properties made them a potential candidate for nanoelectronics, sensors, electrochemical storage of energy, and high-tech electrical and optical actuator applications. For some of these applications, highly purified carbon nanotubes are necessary. Carbon nanotubes purification methods used involve oxidation by mineral acids to remove catalytic particles and carbonaceous by-products, respectively. The aim of our work is to investigate a material by the formation of complex carbon nanotube for biomedical applications. The functionalization process leads to an important amount of functional groups such as carbonyl, and hydroxyl are introduced by this treatment step. The XPS studies showed a shift in the C 1s peak position and changes in the bands with treatment. There is a clear shift of the main peak towards lower energy side indicating a chemical shift due to the functionalization and immobilization of CNT. These changes can be ascribed to the increase in surface area with functionalization and influence of immobilization with avidin.
저자 김영순, 김형일, 조중희, 서형기, 김길성, 신형식
소속 전북대
키워드 Carbon nanotube; Chemicaly functionalized carbon; avidin; X-ray photoelectron spectroscopy
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