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  • 08월 18일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제108회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Size- and Shape-Controlled Fe3O4 Nanocrystal Synthesis and Surface Modification for Biocompatibility

등록일
2011년 8월 1일 15시 43분 57초
접수번호
1281
발표코드
Ⅱ-MAT.P-295 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 <발표Ⅱ>
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
이동헌, 정 현
동국대학교 화학과, Korea
Monodisperse magnetite (Fe3O4) nanoparticles provide a factual model to study the interface interactions between the surfactants and magnetic nanoparticles. High-temperature solution phase reaction of iron(III) acetylacetonate, Fe(acac)3, with 1,2-hexadecanediol in the presence of oleic acid and oleylamine leads to monodisperse Fe3O4 nanoparticles. The magnetite nanoparticles with controllerable size from 6.0 to 30.0 nm have been synthesized in one pot. The shape of as-prepared Fe3O4 nanoparticles could be controlled from spheres to cubes by adjusting the reaction parameters. These obtained particles capped with organic ligands (oleic acid and oleylamine) could be readily dispersed in nonpolar solvent. In order to obtain stable and biocompatible nanoparticles in the biological environments, silica-coating was selected for surface modification of Fe3O4 nanoparticles. The surface modificated Fe3O4 nanoparticles were produced via water-in-cyclohexane reverse microemulsion method by hydrolysis and condensation reaction of tetraethylorthosilicate (TEOS) in the presence of ammonium hydroxide catalyst. The structures, morphologies, and sizes of the obtained Fe3O4 nanoparticles were investigated in detail by X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM). Further, the silica-coated Fe3O4 nanoparticles were followed with measurements of XRD, HRTEM and fourier transform infrared spectroscopy (FT-IR).

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