Plasmonic Enhancement in the Fluorescence of Organic and Biological Molecules by Photovoltaic Tweezing Assembly

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Title: Plasmonic Enhancement in the Fluorescence of Organic and Biological Molecules by Photovoltaic Tweezing Assembly
Authors: Elvira, Iris | Muñoz-Martínez, Juan F. | Jubera, Mariano | García-Cabañes, Angel | Bella, José L. | Haro-González, Patricia | Díaz-García, María A. | Agulló-López, Fernando | Carrascosa, Mercedes
Research Group/s: Física de la Materia Condensada
Center, Department or Service: Universidad de Alicante. Departamento de Física Aplicada | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Bulk-photovoltaic effect | Enhanced biomolecule fluorescence | Nanoparticle optical manipulation | Optoelectronic tweezers | Plasmonic luminescence enhancement
Knowledge Area: Física de la Materia Condensada
Issue Date: Aug-2017
Publisher: Wiley-VCH Verlag GmbH & Co. KGaA
Citation: Advanced Materials Technologies. 2017, 2(8): 1700024. doi:10.1002/admt.201700024
Abstract: The potential of photovoltaic tweezers to produce plasmonic platforms for fluorescence enhancement of organic or biological molecules is demonstrated. 1D and 2D patterns of silver nanoparticles are produced on the surface of LiNbO3:Fe substrates using this photovoltaic tool, which allows depositing in parallel a large number of particles in accordance with imposed 1D and 2D light profiles. The nanoparticle patterns reveal a variety of plasmonic features whose resonances cover a broad spectral range and are able to produce efficient fluorescence enhancement. First, a remarkable average enhancement factor of ten is measured for Disperse Red 1 organic molecules deposited on the patterns. Clear enhancements are also obtained from fluorescein labeled biological molecules (DNA and asynthetic peptide). Finally, the possibility of using the photoelectrically generated metallic patterns with other substrates is also demonstrated by enhancement experiments for which the nanoparticle pattern is transferred to a non-photovoltaic substrate.
Sponsor: This work was supported by the funding of the Ministerio de Economía y Competitividad of Spain under Project No. MAT2014-57704-C3. M.A.D.-G. also acknowledges Spanish Government (MINECO) and the European Community (FEDER) through Grant No. MAT2015-66586-R.
ISSN: 2365-709X
DOI: 10.1002/admt.201700024
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Peer Review: si
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Appears in Collections:INV - Física de la Materia Condensada - Artículos de Revistas

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