Journal
CHEMICAL PHYSICS LETTERS
Volume 625, Issue -, Pages 151-156Publisher
ELSEVIER
DOI: 10.1016/j.cplett.2015.03.003
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Funding
- MENRT
- Region Bretagne
- China Scholarship Council PhD Program (CSC)
- 'Universite Europeenne de Bretagne' (UEB)
- FEDER by an EPT grant in the 'MITTSI' program from RTR BRES-MAT
- ISCR
- Conseil Regional d'Aquitaine
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The two-photon absorption (2PA), the luminescence and the photosensitization properties of porphyrin-cored fluorenyl dendrimers and meso-substituted fluorenylporphyrin monomer, dimer and trimer are described. In comparison with model tetraphenylporphyrin, these compounds combine enhanced (non-resonant) 2PA cross-sections in the near infrared and enhanced fluorescence quantum yields, together with maintained singlet oxygen generation quantum yields. 'Semi-disconnection' between fluorenyl groups and porphyrins (i.e. direct meso substitution) proved to be more efficient than non-conjugated systems (based on efficient FRET between fluorenyl antennae and porphyrins). These results are of interest for combined two-photon imaging and photodynamic therapy. (C) 2015 Elsevier B.V. All rights reserved.
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