The species of 8-methoxy-psoralen in hydrophobic and hydrophilic environments and its solubilization in neutral and charged micelles

dc.creatorMarques, ADS
dc.creatorTakahata, Y
dc.creatorJunior, JRL
dc.creatorSouza, MC
dc.creatorSimoes, SS
dc.creatorAzevedo, WM
dc.creatorde Sa, GF
dc.date2002
dc.dateJUN
dc.date2014-11-16T07:53:23Z
dc.date2015-11-26T17:24:00Z
dc.date2014-11-16T07:53:23Z
dc.date2015-11-26T17:24:00Z
dc.date.accessioned2018-03-29T00:11:19Z
dc.date.available2018-03-29T00:11:19Z
dc.identifierJournal Of Luminescence. Elsevier Science Bv, v. 97, n. 41732, n. 237, n. 249, 2002.
dc.identifier0022-2313
dc.identifierWOS:000176076600013
dc.identifier10.1016/S0022-2313(02)00230-2
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/72482
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/72482
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/72482
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1283969
dc.description8-methoxy-psoralen (8MOP), was studied with UV absorption spectroscopy at room temperature and steady state and time-resolved emission spectroscopic techniques at 77 K. UV absorption spectra were interpreted with the aid of molecular orbital calculations using AM1/MOPAC-93 and HAM/3-CI methods. There exist different species depending upon environments. Each one of them displays quite distinct photophysical properties. The following species were found: in methylcyclohexane, the molecular aggregation and monomer were found; in ethanol, hydrogen bonding complex (HBC) between 8MOP and ethanol; in ethanol plus 3,3,3,1,1,1-hexafluoroisopropanol, a strong hydrogen bonding complex (SHBC) in buffer solution (pH = 7.0, I = 0.1 M), a strong hydrophobic aggregation (SHA) and in buffer solution (pH = 8.5. I = 0.25 M) monomer from SHA. We used the anionic, cationic and neutral micellar solutions to mimic a biological membrane, The species of 8MOP in anionic, cationic and neutral micelles solution is the monomer that penetrates into the interior of micelle staying anchored to its hydrophobic region forming SHBC. (C) 2002 Published by Elsevier Science B.V.
dc.description97
dc.description41732
dc.description237
dc.description249
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationJournal Of Luminescence
dc.relationJ. Lumines.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subject8-methoxy-psoralen
dc.subjectfluorescent probes
dc.subjectHAM/3-CI
dc.subjectmicelles
dc.subjectemission spectroscopy
dc.subjectAM1-MOPAC/93
dc.subjectSemiempirical Ham/3 Method
dc.subjectElectron-affinities
dc.subjectPsoralens
dc.subjectCoumarin
dc.subjectFurocoumarins
dc.subjectResonance
dc.subjectStates
dc.subjectMedia
dc.titleThe species of 8-methoxy-psoralen in hydrophobic and hydrophilic environments and its solubilization in neutral and charged micelles
dc.typeArtículos de revistas


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