Autoagregação da 5,10,15,20-tetrakis(4-metoxifenil)porfirina (tmpp): estudos espectroscópicos e análises multivariadas

Autoagregação da 5,10,15,20-tetrakis(4-metoxifenil)porfirina (tmpp): estudos espectroscópicos e análises multivariadas

In this work, the spectroscopic properties of 5,10,15,20-tetrakis(4-methoxyphenyl)porphyrin (TMPP) in solvents of different polarities and water/ethanol mixtures were studied by electronic absorption spectroscopy and resonance light scattering associated with statistical analysis. The molar absorpti...

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Main Authors: Gustavo Braga, Jader L. Aparicio, Bruno H. Vilsinski, André L. Tessaro, Adriana P. Gerola, Noboru Hioka, Wilker Caetano
Format: Article
Language:English
Published: Sociedade Brasileira de Química 2014-01-01
Series:Química Nova
Subjects:
photodynamic therapy
5,10,15,20-tetrakis(4-methoxyphenyl)porphyrin; self-aggregation
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422014000400012&lng=en&tlng=en
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spelling doaj-469becc0dd7e4be698e977254e0f6bb52020-11-25T00:47:18ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642014-01-0137464865210.5935/0100-4042.20140105S0100-40422014000400012Autoagregação da 5,10,15,20-tetrakis(4-metoxifenil)porfirina (tmpp): estudos espectroscópicos e análises multivariadasGustavo Braga0Jader L. Aparicio1Bruno H. Vilsinski2André L. Tessaro3Adriana P. Gerola4Noboru Hioka5Wilker Caetano6Universidade Estadual de MaringáUniversidade Estadual de MaringáUniversidade Estadual de MaringáUniversidade Tecnológica Federal do ParanáUniversidade Estadual de MaringáUniversidade Estadual de MaringáUniversidade Estadual de MaringáIn this work, the spectroscopic properties of 5,10,15,20-tetrakis(4-methoxyphenyl)porphyrin (TMPP) in solvents of different polarities and water/ethanol mixtures were studied by electronic absorption spectroscopy and resonance light scattering associated with statistical analysis. The molar absorption coefficient and emission maximum of TMPP were dependent on solvent polarity. In the water/ethanol mixture, TMPP remained monomeric up to 25% of water, when it reaches its critical aggregation percentage. Oblique head-to-tail aggregate was found at intermediate water content (35 - 55%), while formation of a J-type aggregate was observed at higher water content (> 60%).http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422014000400012&lng=en&tlng=enphotodynamic therapy5,10,15,20-tetrakis(4-methoxyphenyl)porphyrin; self-aggregation
collection DOAJ
language English
format Article
sources DOAJ
author Gustavo Braga
Jader L. Aparicio
Bruno H. Vilsinski
André L. Tessaro
Adriana P. Gerola
Noboru Hioka
Wilker Caetano
spellingShingle Gustavo Braga
Jader L. Aparicio
Bruno H. Vilsinski
André L. Tessaro
Adriana P. Gerola
Noboru Hioka
Wilker Caetano
Autoagregação da 5,10,15,20-tetrakis(4-metoxifenil)porfirina (tmpp): estudos espectroscópicos e análises multivariadas
Química Nova
photodynamic therapy
5,10,15,20-tetrakis(4-methoxyphenyl)porphyrin; self-aggregation
author_facet Gustavo Braga
Jader L. Aparicio
Bruno H. Vilsinski
André L. Tessaro
Adriana P. Gerola
Noboru Hioka
Wilker Caetano
author_sort Gustavo Braga
title Autoagregação da 5,10,15,20-tetrakis(4-metoxifenil)porfirina (tmpp): estudos espectroscópicos e análises multivariadas
title_short Autoagregação da 5,10,15,20-tetrakis(4-metoxifenil)porfirina (tmpp): estudos espectroscópicos e análises multivariadas
title_full Autoagregação da 5,10,15,20-tetrakis(4-metoxifenil)porfirina (tmpp): estudos espectroscópicos e análises multivariadas
title_fullStr Autoagregação da 5,10,15,20-tetrakis(4-metoxifenil)porfirina (tmpp): estudos espectroscópicos e análises multivariadas
title_full_unstemmed Autoagregação da 5,10,15,20-tetrakis(4-metoxifenil)porfirina (tmpp): estudos espectroscópicos e análises multivariadas
title_sort autoagregação da 5,10,15,20-tetrakis(4-metoxifenil)porfirina (tmpp): estudos espectroscópicos e análises multivariadas
publisher Sociedade Brasileira de Química
series Química Nova
issn 1678-7064
publishDate 2014-01-01
description In this work, the spectroscopic properties of 5,10,15,20-tetrakis(4-methoxyphenyl)porphyrin (TMPP) in solvents of different polarities and water/ethanol mixtures were studied by electronic absorption spectroscopy and resonance light scattering associated with statistical analysis. The molar absorption coefficient and emission maximum of TMPP were dependent on solvent polarity. In the water/ethanol mixture, TMPP remained monomeric up to 25% of water, when it reaches its critical aggregation percentage. Oblique head-to-tail aggregate was found at intermediate water content (35 - 55%), while formation of a J-type aggregate was observed at higher water content (> 60%).
topic photodynamic therapy
5,10,15,20-tetrakis(4-methoxyphenyl)porphyrin; self-aggregation
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422014000400012&lng=en&tlng=en
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