상세정보
학술지
Plasmonic Biosensor
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- 발행일
- 200712
- 출처
- BioChip Journal, v.1 no.4, pp.1-22
- ISSN
- 1976-0280
- 출판사
- 한국바이오칩학회
- 협약과제
- 07MB2700, 유비쿼터스 건강관리용 모듈 시스템, 박선희
- 초록
- Issues on optical and physical characteristics of plasmonic biosensor were described. Starting from physical principles of surface plasmons, resonant coupling, and dispersion, we then discussed more practical and essentially important aspects on dielectric functions, penetration depth, and functional differences in SPR imaging systems. Scaling procedure from experimentally obtained SPR curve to incident angle was also discussed. Also, physical background of plasmon-resonant, extinction-, scattering- and near-field cross-section of metallic nanoparticles was briefly explained, based on Mie scattering. Extinction spectra were calculated for various sizes of gold and silver anoparticles and compared with experimentally observed extinction spectra for colloidal gold.
- KSP 제안 키워드
- Colloidal gold, Cross section, Incident angle, Mie scattering, Physical characteristics, SPR curve, SPR imaging, Surface plasmon(SP), dielectric function, extinction spectra, imaging system