Please use this identifier to cite or link to this item: https://doi.org/10.1002/marc.200800655
Title: Enhanced one- and two-photon excitation emission of a porphyrin photosensitizer by FRET from a conjugated polyelectrolyte
Authors: Wu, C. 
Xu, Q.-H. 
Keywords: Conjugated polymers
Energy transfer
Fluorescence
Self-assembly
Two-photon excitation
Issue Date: 1-Apr-2009
Citation: Wu, C., Xu, Q.-H. (2009-04-01). Enhanced one- and two-photon excitation emission of a porphyrin photosensitizer by FRET from a conjugated polyelectrolyte. Macromolecular Rapid Communications 30 (7) : 504-508. ScholarBank@NUS Repository. https://doi.org/10.1002/marc.200800655
Abstract: Porphyrin-based systems are widely used as photosensitizers for photodynamic therapy, photocatalysis, and drug release. Strategies to enhance one- or two-photon excitation emission of porphyrin sensitizers have been of great interest and significance. Here we report an electrostatic assembly, which comprises a cationic conjugated polyelectrolyte, PFP, and a negatively charged hematoporphyrin (HP). An enhancement of over 9-fold in the HP emission intensity for onephoton excitation Forster resonance energy transfer (FRET), and an enhancement factor of 30-fold for two-photon excitation FRIT were obtained. This electrostatic assembly can be easily modified in the future to construct DMA- or proteinprogrammed enhancement of porphyrin emission, which will be of great interest in porphyrin-based applications. © 2009 WILEY-VCH Verlag GmbH & Co. KGaA.
Source Title: Macromolecular Rapid Communications
URI: http://scholarbank.nus.edu.sg/handle/10635/93757
ISSN: 10221336
DOI: 10.1002/marc.200800655
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