| Literature DB >> 2498482 |
L E Bennett1, K P Ghiggino, R W Henderson.
Abstract
The absorption and fluorescence spectra of monomeric and aggregated species present in aqueous solutions of porphyrin c have been resolved by steady-state and time-resolved spectroscopy. The dependence of the singlet oxygen formation yield (phi delta) on excitation wavelength has also been determined. In the Q-band spectral region, the aggregate absorption and emission spectra are shifted to longer wavelengths with respect to the monomer spectrum with phi delta (monomer) = 0.59 and phi delta (aggregate) = 0.33. The relevance of these findings to the optimization of irradiation conditions in tumour phototherapy using porphyrin c are discussed.Entities:
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Year: 1989 PMID： 2498482 DOI： 10.1016/1011-1344(89)80022-3
Source DB: PubMed Journal: J Photochem Photobiol B ISSN： 1011-1344 Impact factor: 6.252