DocumentCode :
3291189
Title :
Optical characterization of supported gold nanoparticles for plasmonic biosensors
Author :
Pluchery, Olivier ; Lacaze, Emmanuelle ; Simion, Monica ; Miu, Mihaela ; Bragaru, Adina ; Radoi, Antonio
Author_Institution :
Inst. des Nanosci. de Paris, Univ. Pierre et Marie Curie-Paris6, Paris, France
Volume :
01
fYear :
2010
fDate :
11-13 Oct. 2010
Firstpage :
159
Lastpage :
162
Abstract :
Gold nanoparticles (AuNP) continue rising a strong interest for research and especially in the field of biosensors as attested by growing number of publications. One reason is that AuNP exhibit an optical response dominated by the localised surface plasmon resonance (LSPR) that is highly sensitive to the molecular environment. This paper describes the preparation of monodisperse supported AuNP and their characterization by optical UV-visible spectroscopy. It is shown how the surface density of AuNP can be extracted from the spectra, using a complementary check against AFM images. An example of a plasmonic biosensor capable of the specific recognition of avidin is presented.
Keywords :
biosensors; gold; nanoparticles; plasmonics; surface plasmon resonance; ultraviolet spectroscopy; localised surface plasmon resonance; optical UV-visible spectroscopy; optical characterization; plasmonic biosensors; supported gold nanoparticles; Biosensors; Dielectrics; Gold; Nanoparticles; Plasmons; Substrates; Suspensions; AFM; LSPR; UV-visible spectroscopy; avidin; biosensor; gold nanoparticles; plasmon;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Semiconductor Conference (CAS), 2010 International
Conference_Location :
Sinaia
ISSN :
1545-827X
Print_ISBN :
978-1-4244-5783-0
Type :
conf
DOI :
10.1109/SMICND.2010.5649061
Filename :
5649061
Link To Document :
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