생체분자 분리를 위한 Fe3O4 나노입자의 표면수식과 분산안정성 향상

Title
생체분자 분리를 위한 Fe3O4 나노입자의 표면수식과 분산안정성 향상
Other Titles
Functionalization of Fe3O4 Nanoparticles and Improvement of Dispersion Stability for Seperation of Biomolecules
Author
김희택
Keywords
Magnetite nanoparticles; Functionalization; Dispersion stability
Issue Date
2007-08
Publisher
한국분말야금학회
Citation
한국분말야금학회지, v. 14, No. 4, Page. 256-260
Abstract
The surface of magnetite () nanoparticles prepared by coprecipitation method was modified by carboxylic acid group of poly(3-thiophenacetic acid (3TA)) and meso-2,3-dimercaptosuccinic acid (DMSA). Then the lysozyme protein was immobilized on the carboxylic acid group of the modification of the magnetite nanoparticles. The magnetite nanoparticles are spherical and the particle size is approximately 10 nm. We measured quantitative dispersion state by dispersion stability analyzer for each nanoparticles with and without surface modification. The concentration of lysozyme on the modified magnetite nanoparticles was also investigated by a UV-Vis spectrometer and compared to that of magnetite nanoparticles without surface modification. The functionalized magnetite particles had higher enzymatic capacity and dispersion stability than non-functionalized magnetite nanoparticles
URI
http://db.koreascholar.com/Article?code=2553http://repository.hanyang.ac.kr/handle/20.500.11754/106866
ISSN
2287-8173; 1225-7591
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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