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학술발표회초록보기

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  • 02월 28일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제123회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Scattering Fourier Transform Biosensor (SFTB)

등록일
2019년 2월 14일 14시 49분 02초
접수번호
4462
발표코드
MAT.P-515 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 19일 (금요일) 11:00~12:30
발표형식
포스터
발표분야
Material Chemistry
저자 및
공동저자
Sungwoo Lee, Sungjae Yoo, Hajir Hilal Khaleel Al Hammad, Sungho Park*
Department of Chemistry, Sungkyunkwan University, Korea
A binary mixture composed of Au nanospheres (Au NSs) and magnetically responsive nanoparticles (magnetic nanostirrer, MNS) for biosensing platform is reported. Through wet-chemical approach, highly uniform MNSs were synthesized by coating Au NSs with Pt layer and Ni layer, consecutively. Suspension of binary mixture of Au NSs and MNSs were modulated with external rotating magnetic field, which produced perturbed periodically fluctuating optical response due to the presence of Au NSs. As we control the concentration of Au NSs and surrounding refractive index, we can tune to intensity of plasmonic band, which leads to the change in perturbation on modulated light. Based on this, limit of detection was achieved as low as 5 pM of target analytes through bioassay, which were two orders of magnitude enhancement compared to LSPR spectral band shift assay.

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