화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2008년 봄 (04/23 ~ 04/25, 제주ICC)
권호 14권 1호, p.1232
발표분야 재료
제목 In-situ characterization of well-arranged biomolecules on smart surfaces fabricated by scanning probe lithography
초록 The surface immobilization of bio-macromolecules, such as proteins and cells, has long been a goal in biosensing, biomaterials, and tissue-engineering research and for use as detection systems, or as simplified model systems to study biointeractions. Patterning biomolecules at the nanometer scale gives a significant potential for studying how biological systems function at the macromolecular length scale. Herein, we combined the scanning probe lithography (SPL) with self-assembly method and/or wet etching method for the fabrication of positive and/or negative 3D micro/nano-structures. These prepared smart surfaces via SPL were then used to achieve site-selective arrays of biomolecules. In this study, we arrayed bio-molecules on the pre-fabricated silicon structures, even a single molecular level. In addition, direct observations of immobilized biomaterials were performed by real-time AFM imaging and tip-induced force-distance curve measuring. These studies provide understanding on characteristics and behaviors of biomolecules through visualization and manipulation at the single molecular level.
저자 최인희1, 홍수린1, 이정진1, 이수승1, 양영인1, 김영훈2, 이종협1
소속 1서울대, 2광운대
키워드 Atomic force microscopy; cell; scanning probe lithography; protein; surface
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