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Proceedings Article

SILVER nano-cylinders designed by EBL used as label free LSPR nano-biosensors

[+] Author Affiliations
Neval A. Cinel, Serkan Bütün, Ekmel Özbay

Bilkent Univ. (Turkey)

Proc. SPIE 7911, Plasmonics in Biology and Medicine VIII, 79111I (February 11, 2011); doi:10.1117/12.879139
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From Conference Volume 7911

  • Plasmonics in Biology and Medicine VIII
  • Tuan Vo-Dinh; Joseph R. Lakowicz
  • San Francisco, California, USA | January 22, 2011

abstract

Localized Surface Plasmon Resonance (LSPR) is based on the electromagnetic-field enhancement of metallic nanoparticles. It is observed at the metal-dielectric interface and the resonance wavelength can be tuned by the size, shape, and periodicity of the metallic nanoparticles and the surrounding dielectric environment. This makes LSPR a powerful candidate in bio-sensing. In the present work, the size and period dependency of the LSPR wavelength was studied through simulations and fabrications. The surface functionalization, that transforms the surface into a sensing platform was done and verified. Finally, the concentration dependency of the LSPR shifts was observed. All the measurements were done by a transmission set-up. The study is at an early stage, however results are promising. The detection of specific bacteria species can be made possible with such a detection method.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Neval A. Cinel ; Serkan Bütün and Ekmel Özbay
"SILVER nano-cylinders designed by EBL used as label free LSPR nano-biosensors", Proc. SPIE 7911, Plasmonics in Biology and Medicine VIII, 79111I (February 11, 2011); doi:10.1117/12.879139; http://dx.doi.org/10.1117/12.879139


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