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Emission wavelength tuning in rare earth fluoride upconverting nanoparticles decorated with dye coated titanate nanotubes

Emission wavelength tuning in rare earth fluoride upconverting nanoparticles decorated with dye coated titanate nanotubes
Emission wavelength tuning in rare earth fluoride upconverting nanoparticles decorated with dye coated titanate nanotubes
The radiative energy transfer from the rare earth fluoride upconverting (UC) NaxLiyYF4:Yb3+,Er3+ nanoparticles to Rhodamine dyes have been systematically studied in colloidal solutions at room temperature. The UC emission bands at 520 nm and 550 nm have been shifted to the longer wavelength (ca 600 nm) region suitable for bio-medical applications. In order to decrease the optical length between the upconverting emitter and the fluorophore, the UC nanoparticles were decorated with titanate nanotubes coated with a dense layer of dye molecules providing possible resonance energy transfer between them. The fabricated nanostructured composite shows efficient harvesting of UC emission within proximity of the nanoparticles allowing local generation of light suitable for photodynamic therapy applications.
NaYF4, solvothermal synthesis, cancer therapy, time resolved fluorescence.
0743-7463
17419-17425
Bavykin, Dmitry V.
1e9fabfc-d078-4585-876f-85ff33b7eed5
Stuchinskaya, Tanya L.
1e23c7f0-babe-403d-ae6a-fdd4792ccc69
Danos, Lefteris
c831e137-37b9-42cc-ab8c-49de31038922
Russell, David A.
31ce19da-fcea-4a11-886c-0f247c42144c
Bavykin, Dmitry V.
1e9fabfc-d078-4585-876f-85ff33b7eed5
Stuchinskaya, Tanya L.
1e23c7f0-babe-403d-ae6a-fdd4792ccc69
Danos, Lefteris
c831e137-37b9-42cc-ab8c-49de31038922
Russell, David A.
31ce19da-fcea-4a11-886c-0f247c42144c

Bavykin, Dmitry V., Stuchinskaya, Tanya L., Danos, Lefteris and Russell, David A. (2012) Emission wavelength tuning in rare earth fluoride upconverting nanoparticles decorated with dye coated titanate nanotubes. Langmuir, 28 (50), 17419-17425. (doi:10.1021/la304043d).

Record type: Article

Abstract

The radiative energy transfer from the rare earth fluoride upconverting (UC) NaxLiyYF4:Yb3+,Er3+ nanoparticles to Rhodamine dyes have been systematically studied in colloidal solutions at room temperature. The UC emission bands at 520 nm and 550 nm have been shifted to the longer wavelength (ca 600 nm) region suitable for bio-medical applications. In order to decrease the optical length between the upconverting emitter and the fluorophore, the UC nanoparticles were decorated with titanate nanotubes coated with a dense layer of dye molecules providing possible resonance energy transfer between them. The fabricated nanostructured composite shows efficient harvesting of UC emission within proximity of the nanoparticles allowing local generation of light suitable for photodynamic therapy applications.

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More information

Published date: 2012
Keywords: NaYF4, solvothermal synthesis, cancer therapy, time resolved fluorescence.
Organisations: Engineering Mats & Surface Engineerg Gp, Engineering Science Unit

Identifiers

Local EPrints ID: 346959
URI: https://eprints.soton.ac.uk/id/eprint/346959
ISSN: 0743-7463
PURE UUID: 8ad655d3-fcc3-4245-ac37-0272c209c8cd

Catalogue record

Date deposited: 23 Jan 2013 11:38
Last modified: 19 Jul 2019 21:46

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Contributors

Author: Tanya L. Stuchinskaya
Author: Lefteris Danos
Author: David A. Russell

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