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Two-Photon Excitation Temperature Nanosensors Based on a Conjugated Fluorescent Polymer Doped with a Europium Probe

Wang, Xu-dong and Meier, Robert J. and Schäferling, Michael and Bange, Sebastian and Lupton, John M. and Sperber, Michaela and Wegener, Joachim and Ondrus, Vladimir and Beifuss, Uwe and Henne, Ulrich and Klein, Christian and Wolfbeis, Otto S. (2016) Two-Photon Excitation Temperature Nanosensors Based on a Conjugated Fluorescent Polymer Doped with a Europium Probe. Advanced Optical Materials, 4 (11), pp. 1854-1859. Wiley. DOI: 10.1002/adom.201600601 ISSN 2195-1071

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/adom.201600601/full

Abstract

A strongly fluorescent organic semiconducting polymer doped with a highly temperature dependent fluorescent europium(III) complex is converted into a nanosized material that is capable of optically sensing temperature (T) in the range from 0 to 50 °C via two-photon excitation at 720 nm. The nanosensors are prepared from a blue-fluorescent polyfluorene that acts as both a lightharvesting antenna (to capture two-photon energy) and an energy donor in a fluorescence resonance energy transfer (FRET) system. The photonic energy absorbed by the polymer is transferred to the T-sensitive red-luminescent europium complex contained in the nanoparticles. The close spatial proximity of the donor and the acceptor warrants efficient FRET. A poly(ethylene glycol)-co-poly(propylene oxide) block copolymer is also added to render the particles biocompatible. It is shown that T can be calculated from a) the intensity of the luminescence of the europium complex, b) the ratio of the intensities of the red and blue luminescence, or c) the T-dependent luminescence lifetime of the Eu(III) complex.

Item URL in elib:https://elib.dlr.de/97488/
Document Type:Article
Additional Information:First published: 24 August 2016
Title:Two-Photon Excitation Temperature Nanosensors Based on a Conjugated Fluorescent Polymer Doped with a Europium Probe
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wang, Xu-dongInstitute of Analytical Chemistry, Chemo- and Biosensors; University of Regensburg, 93040 Regensburg, GermanyUNSPECIFIED
Meier, Robert J.Institute of Analytical Chemistry, Chemo- and Biosensors; University of Regensburg, 93040 Regensburg, GermanyUNSPECIFIED
Schäferling, MichaelInstitute of Analytical Chemistry, Chemo- and Biosensors; University of Regensburg, 93040 Regensburg, GermanyUNSPECIFIED
Bange, SebastianInstitute of Experimental and Applied Physics; University of Regensburg, 93040 Regensburg, GermanyUNSPECIFIED
Lupton, John M.Institute of Experimental and Applied Physics; University of Regensburg, 93040 Regensburg, GermanyUNSPECIFIED
Sperber, MichaelaInstitute of Analytical Chemistry, Chemo- and Biosensors; University of Regensburg, 93040 Regensburg, GermanyUNSPECIFIED
Wegener, JoachimInstitute of Analytical Chemistry, Chemo- and Biosensors; University of Regensburg, 93040 Regensburg, GermanyUNSPECIFIED
Ondrus, VladimirUni HohenheimUNSPECIFIED
Beifuss, UweUni HohenheimUNSPECIFIED
Henne, Ulrichulrich.henne (at) dlr.deUNSPECIFIED
Klein, Christianchristian.klein (at) dlr.deUNSPECIFIED
Wolfbeis, Otto S.University of Regensburg, Institute of Analytical Chemistry, Chemo- and Biosensors, 93040 Regensburg (Germany)UNSPECIFIED
Date:2016
Journal or Publication Title:Advanced Optical Materials
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:4
DOI :10.1002/adom.201600601
Page Range:pp. 1854-1859
Publisher:Wiley
Series Name:MaterialsViews
ISSN:2195-1071
Status:Published
Keywords:Fluorescent polymer, two-photon excitation, fluorescence resonance energy transfer, temperature, nanosensor
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Micknaus, Ilka
Deposited On:16 Dec 2016 12:33
Last Modified:08 Mar 2018 18:39

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