TY - JOUR AU - 김희택 DA - 2007/08 PY - 2007 UR - http://db.koreascholar.com/Article?code=2553 UR - https://repository.hanyang.ac.kr/handle/20.500.11754/106866 AB - 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 PB - 한국분말야금학회 KW - Magnetite nanoparticles KW - Functionalization KW - Dispersion stability TI - 생체분자 분리를 위한 Fe3O4 나노입자의 표면수식과 분산안정성 향상 TT - Functionalization of Fe3O4 Nanoparticles and Improvement of Dispersion Stability for Seperation of Biomolecules T2 - 한국분말야금학회지 ER -