| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 봄 (04/10 ~ 04/11, 컨벤션 뷰로(대전)) |
| 권호 |
33권 1호 |
| 발표분야 |
기능성 유무기 하이브리드 나노재료 |
| 제목 |
Strategy for Stabilization of Magnetite (Fe3O4) Nanoparticles Using Polymeric Surfactants |
| 초록 |
Magnetite nanoparticles (MNP) of 10-20nm in diameter were synthesized by controlled chemical co-precipitation method using precursors of FeCl3•6H2O and FeCl2•4H2O in alkaline medium at room temperature. In the process, polymeric surfactants such as polyethylene glycols (PEGs) and PEG-branched polymers were used as a surfactant to obtain the biocompatibility and stability of MNPs. Well-dispersed MNPs were further modified with biomolecules and the robust bonding between the particles and biomolecules was confirmed with harsh ultrasonication followed by UV-visible spectroscopic measurement. The surface of MNPs coated with surfactants was characterized by atomic force microscopy and transmission electron microscopy. |
| 저자 |
김명진, 정재연, 이종환, 나경아, 김옥진, 박수범, 현진호
|
| 소속 |
서울대 |
| 키워드 |
chemical co-precipitation; magnetite; nanoparticles; polyethylene glycol; surfactant
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| E-Mail |
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