| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 봄 (04/08 ~ 04/09, 대전컨벤션센터) |
| 권호 |
35권 1호 |
| 발표분야 |
세포기능조절 고분자(의료용 고분자 부문위원회) |
| 제목 |
Nanoparticles for various biological applications |
| 초록 |
Magnetic nanoparticles with high magnetic moments and very small size are under active development as such materials find growing uses in biotechnology and medicine. Ferromagnetic metals rather than their corresponding oxides, have been suggested as an ideal constituent for MNPs. Here we present a new monometallic MNP consisting of an elemental iron core and an artificial ferrite-shell. The iron cores were enlarged into a thermally stable ferromagnetic state. Subsequently, protective ferrite shells were grown onto the cores and metal-doped to further enhance magnetization. The MNPs had very high magnetization and transverse relaxivities, and could be used for highly sensitive detection of proteins in the pico-molar ranges and single cancer cells. The mechanism and MNP featured here could serve as a new strategy in preparing stable, highly magnetic and yet dispersible nanoparticles from ferromagnetic crystals. |
| 저자 |
윤태종 |
| 소속 |
차의과학대 |
| 키워드 |
nanoparticle; bio-imaging; MR sensing
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| E-Mail |
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