The effect of size of Au-core Ag-shell nanoparticles on their enhancement of fluorescence

Fang Xie*, Ewa M. Goldys

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

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Abstract

A simple method has been developed for homogeneous deposition of uniform Au-core Ag-shell nanoparticles on glass substrate. The method uses uniform gold colloid as seed and a silver enhancing kit to provide silver overlayer with improved fluorescence enhancement properties. Depending on size of these nanoparticles, the fluorescence of FITC-HSA monolayer deposited over the nanoparticles is either quenched, not affected or, enhanced in comparison to the control area - bare glass surface. Thus a pronounced size effect underpins the ability of these nanoparticles to enhance fluorescence. Nanostructures of appropriate size thus prepared can produce promising substrates for fluorescence enhancement. One of the outstanding advantages of this method is that such substrates are spatially homogeneous, which will pave the way for application of such substrates in biotechnology and life sciences.

Original languageEnglish
Title of host publicationProceedings of the 2006 International Conference on Nanoscience and Nanotechnology, ICONN
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages202-205
Number of pages4
ISBN (Print)1424404533, 9781424404537
DOIs
Publication statusPublished - 2006
Event2006 International Conference on Nanoscience and Nanotechnology, ICONN 2006 - Brisbane, Australia
Duration: 3 Jul 20066 Jul 2006

Other

Other2006 International Conference on Nanoscience and Nanotechnology, ICONN 2006
CountryAustralia
CityBrisbane
Period3/07/066/07/06

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