화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2004년 가을 (10/08 ~ 10/09, 경북대학교)
권호 29권 2호, p.553
발표분야 복합재료
제목 Microsphere-Nanosphere Assembly though Specific Interaction
초록 Surface functionalized nanospheres have been prepared through single step heterogeneous polymerization technique1, followed by adsorption through chemical or electrostatic interaction onto inert gold surface to provide well ordered self-assembly hyperstructure for the applications of microelectronics and biomaterials.2
Monodisperse organic nanospheres having carboxylic acid on the surface were prepared by emulsifier-free emulsion polymerization, and then functionalized by thiol-containing hydrocarbon.3 The surface properties of nanospheres with diameter of about 140 ㎚ examined on electrophoretic light scattering (ELS), X-ray photoelectron spectroscope (XPS) and scanning electron microscope (SEM). Self-assembly of these fuctionalized nanospheres on gold microsphere was examined by SEM and thermogravimetric analyzer (TGA) to verify structural homogeneity and stability.



Fig 1. SEM photographs of nanospheres self-assembled onto gold microsphere surfaces



Fig 2. TGA of (1) neat gold microspheres (2) nanospheres self-assembled onto gold microsphere surfaces


Reference
1. R.M. Fitch, Polymer Colloids : A Comprehensive Introduction, Academic Press, New York, 1997, pp 145.
2. F. Caruso, Colloids and Colloid Assemblies, WILEY-VCH, 2004, pp 406.
3. S. Xu and X. Han, Biosensors and Bioelectronics 19, 1117(2004).
저자 우상욱1, 박혜진2, 김중현3, 최철림1, 김준경1, 박민1, 이상수1
소속 1한국과학기술(연), 2서울대, 3연세대
키워드 assembly; nanosphere; microsphere
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