Water state and carbonyl distribution populations in confined regions of lipid bilayers observed by FTIR spectroscopy

Autores
Disalvo, Edgardo Anibal; Frías, María de los Ángeles
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
It has been suggested that water in confined regions presents different properties than bulk water, mainly because of the changes in water population species that may be induced by the adjacent walls of different polarities in terms of hydrogen bond formation. In this context, it would be expected that lipids in the gel and the fluid states should offer different templates for water organization. The presence of water pockets or defects in lipid bilayers has been proposed to explain the insertion of charged and polar peptides and amino acids in membranes. In this work, we provide direct evidence by means of FTIR spectroscopy that water band profiles are changed whether lipids are in the solid state, in the gel state after heating and cooling across the phase transition, or in the fluid state. The different bands found in each case were assigned to different H-bonded water populations in agreement with the exposure of carbonyl groups.
Fil: Disalvo, Edgardo Anibal. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Santiago del Estero. Universidad Nacional de Santiago del Estero. Centro de Investigaciones y Transferencia de Santiago del Estero; Argentina
Fil: Frías, María de los Ángeles. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Santiago del Estero. Universidad Nacional de Santiago del Estero. Centro de Investigaciones y Transferencia de Santiago del Estero; Argentina
Materia
Lipid Membranes
Water
Agua
Lipid Interface
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/22080
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/22080
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Water state and carbonyl distribution populations in confined regions of lipid bilayers observed by FTIR spectroscopyDisalvo, Edgardo AnibalFrías, María de los ÁngelesLipid MembranesWaterAguaLipid Interfacehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1It has been suggested that water in confined regions presents different properties than bulk water, mainly because of the changes in water population species that may be induced by the adjacent walls of different polarities in terms of hydrogen bond formation. In this context, it would be expected that lipids in the gel and the fluid states should offer different templates for water organization. The presence of water pockets or defects in lipid bilayers has been proposed to explain the insertion of charged and polar peptides and amino acids in membranes. In this work, we provide direct evidence by means of FTIR spectroscopy that water band profiles are changed whether lipids are in the solid state, in the gel state after heating and cooling across the phase transition, or in the fluid state. The different bands found in each case were assigned to different H-bonded water populations in agreement with the exposure of carbonyl groups.Fil: Disalvo, Edgardo Anibal. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Santiago del Estero. Universidad Nacional de Santiago del Estero. Centro de Investigaciones y Transferencia de Santiago del Estero; ArgentinaFil: Frías, María de los Ángeles. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Santiago del Estero. Universidad Nacional de Santiago del Estero. Centro de Investigaciones y Transferencia de Santiago del Estero; ArgentinaAmerican Chemical Society2013-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/22080Disalvo, Edgardo Anibal; Frías, María de los Ángeles; Water state and carbonyl distribution populations in confined regions of lipid bilayers observed by FTIR spectroscopy; American Chemical Society; Langmuir; 29; 23; 1-2013; 6969-69740743-7463CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/la304390rinfo:eu-repo/semantics/altIdentifier/doi/10.1021/la304390rinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:13:15Zoai:ri.conicet.gov.ar:11336/22080instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:13:15.585CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Water state and carbonyl distribution populations in confined regions of lipid bilayers observed by FTIR spectroscopy
title Water state and carbonyl distribution populations in confined regions of lipid bilayers observed by FTIR spectroscopy
spellingShingle Water state and carbonyl distribution populations in confined regions of lipid bilayers observed by FTIR spectroscopy
Disalvo, Edgardo Anibal
Lipid Membranes
Water
Agua
Lipid Interface
title_short Water state and carbonyl distribution populations in confined regions of lipid bilayers observed by FTIR spectroscopy
title_full Water state and carbonyl distribution populations in confined regions of lipid bilayers observed by FTIR spectroscopy
title_fullStr Water state and carbonyl distribution populations in confined regions of lipid bilayers observed by FTIR spectroscopy
title_full_unstemmed Water state and carbonyl distribution populations in confined regions of lipid bilayers observed by FTIR spectroscopy
title_sort Water state and carbonyl distribution populations in confined regions of lipid bilayers observed by FTIR spectroscopy
dc.creator.none.fl_str_mv Disalvo, Edgardo Anibal
Frías, María de los Ángeles
author Disalvo, Edgardo Anibal
author_facet Disalvo, Edgardo Anibal
Frías, María de los Ángeles
author_role author
author2 Frías, María de los Ángeles
author2_role author
dc.subject.none.fl_str_mv Lipid Membranes
Water
Agua
Lipid Interface
topic Lipid Membranes
Water
Agua
Lipid Interface
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv It has been suggested that water in confined regions presents different properties than bulk water, mainly because of the changes in water population species that may be induced by the adjacent walls of different polarities in terms of hydrogen bond formation. In this context, it would be expected that lipids in the gel and the fluid states should offer different templates for water organization. The presence of water pockets or defects in lipid bilayers has been proposed to explain the insertion of charged and polar peptides and amino acids in membranes. In this work, we provide direct evidence by means of FTIR spectroscopy that water band profiles are changed whether lipids are in the solid state, in the gel state after heating and cooling across the phase transition, or in the fluid state. The different bands found in each case were assigned to different H-bonded water populations in agreement with the exposure of carbonyl groups.
Fil: Disalvo, Edgardo Anibal. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Santiago del Estero. Universidad Nacional de Santiago del Estero. Centro de Investigaciones y Transferencia de Santiago del Estero; Argentina
Fil: Frías, María de los Ángeles. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Santiago del Estero. Universidad Nacional de Santiago del Estero. Centro de Investigaciones y Transferencia de Santiago del Estero; Argentina
description It has been suggested that water in confined regions presents different properties than bulk water, mainly because of the changes in water population species that may be induced by the adjacent walls of different polarities in terms of hydrogen bond formation. In this context, it would be expected that lipids in the gel and the fluid states should offer different templates for water organization. The presence of water pockets or defects in lipid bilayers has been proposed to explain the insertion of charged and polar peptides and amino acids in membranes. In this work, we provide direct evidence by means of FTIR spectroscopy that water band profiles are changed whether lipids are in the solid state, in the gel state after heating and cooling across the phase transition, or in the fluid state. The different bands found in each case were assigned to different H-bonded water populations in agreement with the exposure of carbonyl groups.
publishDate 2013
dc.date.none.fl_str_mv 2013-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/22080
Disalvo, Edgardo Anibal; Frías, María de los Ángeles; Water state and carbonyl distribution populations in confined regions of lipid bilayers observed by FTIR spectroscopy; American Chemical Society; Langmuir; 29; 23; 1-2013; 6969-6974
0743-7463
CONICET Digital
CONICET
url http://hdl.handle.net/11336/22080
identifier_str_mv Disalvo, Edgardo Anibal; Frías, María de los Ángeles; Water state and carbonyl distribution populations in confined regions of lipid bilayers observed by FTIR spectroscopy; American Chemical Society; Langmuir; 29; 23; 1-2013; 6969-6974
0743-7463
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/la304390r
info:eu-repo/semantics/altIdentifier/doi/10.1021/la304390r
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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