Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/5228
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Pineiro, Marta | - |
dc.contributor.author | Pereira, Mariette M. | - |
dc.contributor.author | Rocha Gonsalves, A. M. d'A. | - |
dc.contributor.author | Arnaut, Luis G. | - |
dc.contributor.author | Formosinho, Sebastião J. | - |
dc.date.accessioned | 2008-09-01T15:06:08Z | - |
dc.date.available | 2008-09-01T15:06:08Z | - |
dc.date.issued | 2001 | en_US |
dc.identifier.citation | Journal of Photochemistry and Photobiology A: Chemistry. 138:2 (2001) 147-157 | en_US |
dc.identifier.uri | https://hdl.handle.net/10316/5228 | - |
dc.description.abstract | Flash photolysis and photoacoustic calorimetry were used to measure the energy-transfer rates and singlet oxygen quantum yields originated by the triplet states of halogenated tetrakisphenylporphyrins and related chlorins in aerated toluene. The chlorins ([lambda]max[approximate]660 nm, [var epsilon][approximate]3×104 M-1 cm-1) have long-lived triplet states (>12 [mu]s) in the absence of molecular oxygen, and in its presence the singlet oxygen production quantum yields of the 2-chloro and 2,6-dichlorophenyl derivatives are 0.89±0.05 and 0.98±0.02, respectively. The high absorptivity in the red, the photostability and the efficiency of these chlorins in producing singlet oxygen suggests a ground for the development of better sensitisers for photodynamic therapy. | en_US |
dc.description.uri | http://www.sciencedirect.com/science/article/B6TGY-41YG70D-7/1/de6fc7896eaf9c58239551fa798e3e7b | en_US |
dc.format.mimetype | aplication/PDF | en |
dc.language.iso | eng | eng |
dc.rights | openAccess | eng |
dc.subject | Photoacoustic calorimetry | en_US |
dc.subject | Chlorin | en_US |
dc.subject | Singlet oxygen | en_US |
dc.subject | Sensitisers | en_US |
dc.subject | Photodynamic therapy | en_US |
dc.title | Singlet oxygen quantum yields from halogenated chlorins: potential new photodynamic therapy agents | en_US |
dc.type | article | en_US |
dc.identifier.doi | 10.1016/S1010-6030(00)00382-8 | - |
uc.controloAutoridade | Sim | - |
item.fulltext | Com Texto completo | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.languageiso639-1 | en | - |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
crisitem.author.dept | Faculty of Sciences and Technology | - |
crisitem.author.parentdept | University of Coimbra | - |
crisitem.author.researchunit | CQC - Coimbra Chemistry Centre | - |
crisitem.author.researchunit | CQC - Coimbra Chemistry Centre | - |
crisitem.author.researchunit | CQC - Coimbra Chemistry Centre | - |
crisitem.author.researchunit | CQC - Coimbra Chemistry Centre | - |
crisitem.author.researchunit | CQC - Coimbra Chemistry Centre | - |
crisitem.author.parentresearchunit | Faculty of Sciences and Technology | - |
crisitem.author.parentresearchunit | Faculty of Sciences and Technology | - |
crisitem.author.parentresearchunit | Faculty of Sciences and Technology | - |
crisitem.author.parentresearchunit | Faculty of Sciences and Technology | - |
crisitem.author.parentresearchunit | Faculty of Sciences and Technology | - |
crisitem.author.orcid | 0000-0002-7460-3758 | - |
crisitem.author.orcid | 0000-0003-4958-7677 | - |
crisitem.author.orcid | 0000-0001-9987-7301 | - |
crisitem.author.orcid | 0000-0002-3223-4819 | - |
crisitem.author.orcid | 0000-0001-6607-0026 | - |
Appears in Collections: | FCTUC Química - Artigos em Revistas Internacionais |
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filed7382f7e05584011bb8f4c1a6129e61b.pdf | 315.99 kB | Adobe PDF | View/Open |
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