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  • 09월 10일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제124회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Plasmonic Nanodisks Embedded in Magnetic Gyro-Nanorods for Fourier Transform Surface Plasmon Resonance Based Biosensing

2019년 8월 30일 11시 08분 51초
MAT.O-1 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
목 09시 : 00분
Material Chemistry - Oral Presentation for Young Material Chemists
저자 및
Seongkeun Ih, Jieun Shin, Sungho Park*
Department of Chemistry, Sungkyunkwan University, Korea

Herein, we demonstrated a simple and effective LSPR based biosensing with magnetic rotation by inserted ferromagnetic segment into plasmonic blocks. As template-based electrochemical deposition method enabled to act as plasmonic nanoparticle with magnetic functionality. Due to the presence of the magnetic segment, the synthesized gyro-nanodisks (GNDs) are not only plasmonically active, but are also magnetically response. Owing to the magnetically-responsive and plasmonically-active GNDs, periodic extinction signals were generated under the external rotating magnetic field, which can be converted to frequency-domains using Fourier-transform. After binding a target molecule on GNDs, an increase in the resistance force causes a dynamically perturbed frequency signal which allows us to investigate biodetection. By modulating the design of the GNDs with respect to number and the embedded location of plasmonic nanodisks, we investigated the correlation between hydrodynamic force and the magnetic cancellation effect. The concepts and approaches will contribute to further advanced sensing module performance, as well as a better understanding of dynamic nanoparticle system, by modulated periodic fluctuation of surface plasmon bands under the external magnetic fields.