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

제108회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Large-scale Synthesis of Ultrathin Manganese Oxide Nanoplates and their Applications to T1 MRI Contrast Agents

등록일
2011년 8월 1일 15시 36분 00초
접수번호
1255
발표코드
Ⅱ-MAT.P-292 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 <발표Ⅱ>
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
박미현
서울대학교 화학생물공학부, Korea

Two-dimensional (2-D) nanostructured materials have attracted tremendous attention from many researchers in various disciplines for their unique properties. Thin 2-D nanomaterials have many potential applications in solar cells, and electrochemical devices as a result of their high surface areas, which provide enhanced interfacial interactions. In this study, lamellar structured ultrathin manganese oxide nanoplates have been synthesized from thermal decomposition of manganese precursor in the presence of surfactants, which promoted 2-D growth by acting not only as a strongly binding agent but also as a structure-directing agent. Ultrathin manganese oxide nanoplates with thickness of about 1 nm were assembled into a lamellar structure and the width of the nanoplates could be controlled from 8 nm to 70 nm. These hydrophobic manganese oxide nanoplates were ligand-exchanged with poly(ethyleneglycol) derivatives to generate water-dispersible nanoplates and applied to T1 contrast agents for magnetic resonance imaging. They exhibited very high longitudinal relaxivity value of up to 5.5 mM-1s-1 derived from their high concentration of manganese ions exposed on the surface.


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