Surface pressure-area isotherms for Langmuir monolayers and a docking molecular orientation of perylene tetracarboxylic derivatives on a water surface
Autor(a) principal: | |
---|---|
Data de Publicação: | 2004 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/225053 |
Resumo: | The surface pressure-molecular area (π-A) isotherms for Langmuir monolayers of four perylenetetracarboxylic (PTCD) derivatives, measured with varying subphase temperatures and compression speeds, are reported. The behavior of these PTCD derivatives at the water-air interface is modeled using the rigid docking method. This approach is the first attempt to model the molecular orientation of PTCD on the water surface to be compared with experimental Langmuir isotherms. Through this methodology, it would be possible to anticipate aggregation and determine if favorable spatial orientations of perylenes are generated on the water surface. The π-A isotherm experiments show that these molecules can support high surface pressures, indicating strong packing on the water surface and that the isotherms are compression speed independent but temperature dependent. The molecular orientation and stacking was further examined in Langmuir-Blodgett (LB) monolayers deposited onto glass and glass coated with Ag island films using UV-visible absorption and surface-enhanced fluorescence (SEF) measurements. |
id |
UNSP_0c6fb9e502be18f0638eb37a0fccaac6 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/225053 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Surface pressure-area isotherms for Langmuir monolayers and a docking molecular orientation of perylene tetracarboxylic derivatives on a water surfaceDockingLangmuir-Blodgett filmMolecular organizationPeryleneSurface-enhanced fluorescenceUV-visThe surface pressure-molecular area (π-A) isotherms for Langmuir monolayers of four perylenetetracarboxylic (PTCD) derivatives, measured with varying subphase temperatures and compression speeds, are reported. The behavior of these PTCD derivatives at the water-air interface is modeled using the rigid docking method. This approach is the first attempt to model the molecular orientation of PTCD on the water surface to be compared with experimental Langmuir isotherms. Through this methodology, it would be possible to anticipate aggregation and determine if favorable spatial orientations of perylenes are generated on the water surface. The π-A isotherm experiments show that these molecules can support high surface pressures, indicating strong packing on the water surface and that the isotherms are compression speed independent but temperature dependent. The molecular orientation and stacking was further examined in Langmuir-Blodgett (LB) monolayers deposited onto glass and glass coated with Ag island films using UV-visible absorption and surface-enhanced fluorescence (SEF) measurements.DFQB FCT UNESP, 19060-900 Presidente Prudente, SPInst. de Quim. de São Carlos Universidade de São Paulo, 13560-970 São Carlos, SPDepartamento de Química Univ. Federal de São Carlos, 13565-905 São Carlos, SPMaterials and Surface Science Group University of Windsor, Windsor, Ont. N9B 3P4DFQB FCT UNESP, 19060-900 Presidente Prudente, SPUniversidade Estadual Paulista (UNESP)Universidade de São Paulo (USP)Universidade Federal de São Carlos (UFSCar)University of WindsorConstantino, C. J.L. [UNESP]Antunes, P. A. [UNESP]Oliveira, C. B.Trsic, M.Caracelli, I.Aroca, R. R.2022-04-28T20:37:17Z2022-04-28T20:37:17Z2004-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article64-72Canadian Journal of Analytical Sciences and Spectroscopy, v. 49, n. 2, p. 64-72, 2004.1205-6685http://hdl.handle.net/11449/2250532-s2.0-3943073038Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCanadian Journal of Analytical Sciences and Spectroscopyinfo:eu-repo/semantics/openAccess2024-06-19T12:44:23Zoai:repositorio.unesp.br:11449/225053Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:09:00.040280Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Surface pressure-area isotherms for Langmuir monolayers and a docking molecular orientation of perylene tetracarboxylic derivatives on a water surface |
title |
Surface pressure-area isotherms for Langmuir monolayers and a docking molecular orientation of perylene tetracarboxylic derivatives on a water surface |
spellingShingle |
Surface pressure-area isotherms for Langmuir monolayers and a docking molecular orientation of perylene tetracarboxylic derivatives on a water surface Constantino, C. J.L. [UNESP] Docking Langmuir-Blodgett film Molecular organization Perylene Surface-enhanced fluorescence UV-vis |
title_short |
Surface pressure-area isotherms for Langmuir monolayers and a docking molecular orientation of perylene tetracarboxylic derivatives on a water surface |
title_full |
Surface pressure-area isotherms for Langmuir monolayers and a docking molecular orientation of perylene tetracarboxylic derivatives on a water surface |
title_fullStr |
Surface pressure-area isotherms for Langmuir monolayers and a docking molecular orientation of perylene tetracarboxylic derivatives on a water surface |
title_full_unstemmed |
Surface pressure-area isotherms for Langmuir monolayers and a docking molecular orientation of perylene tetracarboxylic derivatives on a water surface |
title_sort |
Surface pressure-area isotherms for Langmuir monolayers and a docking molecular orientation of perylene tetracarboxylic derivatives on a water surface |
author |
Constantino, C. J.L. [UNESP] |
author_facet |
Constantino, C. J.L. [UNESP] Antunes, P. A. [UNESP] Oliveira, C. B. Trsic, M. Caracelli, I. Aroca, R. R. |
author_role |
author |
author2 |
Antunes, P. A. [UNESP] Oliveira, C. B. Trsic, M. Caracelli, I. Aroca, R. R. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade de São Paulo (USP) Universidade Federal de São Carlos (UFSCar) University of Windsor |
dc.contributor.author.fl_str_mv |
Constantino, C. J.L. [UNESP] Antunes, P. A. [UNESP] Oliveira, C. B. Trsic, M. Caracelli, I. Aroca, R. R. |
dc.subject.por.fl_str_mv |
Docking Langmuir-Blodgett film Molecular organization Perylene Surface-enhanced fluorescence UV-vis |
topic |
Docking Langmuir-Blodgett film Molecular organization Perylene Surface-enhanced fluorescence UV-vis |
description |
The surface pressure-molecular area (π-A) isotherms for Langmuir monolayers of four perylenetetracarboxylic (PTCD) derivatives, measured with varying subphase temperatures and compression speeds, are reported. The behavior of these PTCD derivatives at the water-air interface is modeled using the rigid docking method. This approach is the first attempt to model the molecular orientation of PTCD on the water surface to be compared with experimental Langmuir isotherms. Through this methodology, it would be possible to anticipate aggregation and determine if favorable spatial orientations of perylenes are generated on the water surface. The π-A isotherm experiments show that these molecules can support high surface pressures, indicating strong packing on the water surface and that the isotherms are compression speed independent but temperature dependent. The molecular orientation and stacking was further examined in Langmuir-Blodgett (LB) monolayers deposited onto glass and glass coated with Ag island films using UV-visible absorption and surface-enhanced fluorescence (SEF) measurements. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-01-01 2022-04-28T20:37:17Z 2022-04-28T20:37:17Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Canadian Journal of Analytical Sciences and Spectroscopy, v. 49, n. 2, p. 64-72, 2004. 1205-6685 http://hdl.handle.net/11449/225053 2-s2.0-3943073038 |
identifier_str_mv |
Canadian Journal of Analytical Sciences and Spectroscopy, v. 49, n. 2, p. 64-72, 2004. 1205-6685 2-s2.0-3943073038 |
url |
http://hdl.handle.net/11449/225053 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Canadian Journal of Analytical Sciences and Spectroscopy |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
64-72 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128612075831296 |