|
Type |
Oral Presentation |
Area |
Oral Presentation of Young Analytical Chemists I |
Room No. |
Room C311+C312 |
Time |
THU 09:36-: |
Code |
ANAL1.O-11 |
Subject |
Defocused Dark-Field Orientation Imaging of Single Gold Microrods on Synthetic Membranes |
Authors |
Junho Lee, JI WON HA* Department of Chemistry, University of Ulsan, Korea |
Abstract |
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. |
E-mail |
mastar92@naver.com |
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