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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 9, Iss. 5 — Apr. 29, 2014

Effect of coupled graphene oxide on the sensitivity of surface plasmon resonance detection

Yeonsoo Ryu, Seyoung Moon, Youngjin Oh, Yonghwi Kim, Taewoong Lee, Dong Ha Kim, and Donghyun Kim  »View Author Affiliations


Applied Optics, Vol. 53, Issue 7, pp. 1419-1426 (2014)
http://dx.doi.org/10.1364/AO.53.001419


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Abstract

We investigated graphene-oxide-(GO-) coupled surface plasmon resonance (SPR) detection sensitivity for sandwiched antigen-antibody interaction between human and antihuman immunoglobulin G molecules. GO was prepared in a Langmuir–Blodgett solution on gold and dielectric surfaces. Theoretical and experimental data suggest that an increased dielectric spacer thickness reduces resonance shifts for GO-coupled SPR detection as dielectric properties of GO appear to prevail. In general, a metal-enhanced structure was shown to provide a larger resonance shift by plasmonic field enhancement. The far-field properties were described in terms of near-field overlap. The peak resonance shift that was obtained with GO-coupled SPR detection was enhanced to 113% of the resonance shift obtained by conventional thin-film-based SPR detection and may further be improved by GO stacking.

© 2014 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(310.0310) Thin films : Thin films
(280.1415) Remote sensing and sensors : Biological sensing and sensors

ToC Category:
Optics at Surfaces

History
Original Manuscript: November 19, 2013
Revised Manuscript: January 26, 2014
Manuscript Accepted: January 29, 2014
Published: February 27, 2014

Virtual Issues
Vol. 9, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Yeonsoo Ryu, Seyoung Moon, Youngjin Oh, Yonghwi Kim, Taewoong Lee, Dong Ha Kim, and Donghyun Kim, "Effect of coupled graphene oxide on the sensitivity of surface plasmon resonance detection," Appl. Opt. 53, 1419-1426 (2014)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-53-7-1419

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