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제120회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Defocused Dark-Field Orientation Imaging of Single Gold Microrods on Synthetic Membranes

등록일
2017년 8월 14일 14시 32분 32초
접수번호
3009
발표코드
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발표시간
목 09시 : 36분
발표형식
구두발표
발표분야
Analytical Chemistry - Oral Presentation of Young Analytical Chemists I
저자 및
공동저자
Junho Lee, JI WON HA*
Department of Chemistry, University of Ulsan, Korea
Plasmonic gold microrods (AuMRs) are promising optical probes because of direct observation of their in-plane orientations and motions under an optical microscope. However, our understanding on the optical properties of AuMRs is still very limited at the single particle level and their out-of-plane orientations cannot be resolved by eye with high accuracy. Herein, we present the scattering properties of 1 μm-long AuMRs under defocused DF microscopy. Characteristic defocused scattering patterns of single AuMRs allowed us to resolve both in-plane and out-of-plane angles of single AuMRs. We further demonstrate the feasibility of using the defocused orientation imaging technique to track rotational motions and out-of-plane angles of single AuMRs on synthetic membranes.

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