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

Mortazavi, Daryoush, Kouzani, Abbas Z. and Kaynak, Akif 2012, Investigating nanoparticle-substrate interaction in LSPR biosensing using the image-charge theory, in EMBC 2012 : Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, IEEE, Piscataway, N.J., pp. 2363-2366.

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Title Investigating nanoparticle-substrate interaction in LSPR biosensing using the image-charge theory
Author(s) Mortazavi, Daryoush
Kouzani, Abbas Z.
Kaynak, Akif
Conference name IEEE Engineering in Medicine and Biology Society. Conference (34th : 2012 : San Diego, California)
Conference location San Diego, California
Conference dates 28 Aug.-1 Sep. 2012
Title of proceedings EMBC 2012 : Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Editor(s) [Unknown]
Publication date 2012
Conference series IEEE Engineering in Medicine and Biology Society Conference
Start page 2363
End page 2366
Total pages 4
Publisher IEEE
Place of publication Piscataway, N.J.
Keyword(s) biosensors
glass
permittivity
plasmons
shape
substrates
surface waves
Summary 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.
ISBN 9781424441198
9781424441204
Language eng
Field of Research 090606 Photonics and Electro-Optical Engineering (excl Communications)
091306 Microelectromechanical Systems (MEMS)
090304 Medical Devices
Socio Economic Objective 920203 Diagnostic Methods
HERDC Research category E1 Full written paper - refereed
Copyright notice ©2012, IEEE
Persistent URL http://hdl.handle.net/10536/DRO/DU:30051048

Document type: Conference Paper
Collection: School of Engineering
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