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Investigating nanoparticle-substrate interaction in LSPR biosensing using the image-charge theory

conference contribution
posted on 2012-01-01, 00:00 authored by Daryoush Mortazavi, Abbas KouzaniAbbas Kouzani, Akif KaynakAkif Kaynak
Localized surface plasmon resonance (LSPR) has been used to develop optical biosensors. Tuning the resonance wavelength to detect target biomolecules with a particular dipolar resonance is essential when designing LSPR biosensors. In this paper, the interaction of nanoparticles (NPs) with glass substrate (SiO2) for LSPR wavelength is investigated using the concept of the image-charge theory. Using the FDTD method, it is shown how the NP and substrate size change the plasmon wavelength. Next, this phenomenon is interpreted using the analytical electrostatic eigenvalue method.

History

Event

IEEE Engineering in Medicine and Biology Society. Conference (34th : 2012 : San Diego, California)

Pagination

2363 - 2366

Publisher

IEEE

Location

San Diego, California

Place of publication

Piscataway, N.J.

Start date

2012-08-28

End date

2012-09-01

ISBN-13

9781424441198

ISBN-10

1424441196

Language

eng

Publication classification

E1 Full written paper - refereed; E Conference publication

Copyright notice

2012, IEEE

Title of proceedings

EMBC 2012 : Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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