Coordination forces between lipid bilayers produced by ferricyanide and Ca2+

Detalhes bibliográficos
Autor(a) principal: Frías, Maria A.
Data de Publicação: 2012
Outros Autores: Contis, Griselda, Hollmann, Axel, Disalvo, E. Anibal
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10451/10788
Resumo: © 2011 Elsevier B.V. All rights reserved.
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spelling Coordination forces between lipid bilayers produced by ferricyanide and Ca2+Lipid membranesFerricyanideCa2+ ionsVesicle aggregationComplex adsorptionZeta potential© 2011 Elsevier B.V. All rights reserved.Attractive forces usually invoked to take place in membrane–membrane contact in aggregation are hydrogen bonding cross-linkings and hydrophobic interactions between opposing surfaces. However, little is known in relation to the presence of coordination forces in the membrane–membrane interaction. These are understood as those that may be favoured by the formation or the participation of coordination complexes between surface specific groups. In this work, we have analyzed the formation of this type of aggregates between phosphatidylcholine vesicles mediated by a coadsorption of ferricyanide and Ca2+ ions to the interface. The results obtained by surface potential measures, optical and electronic microscopy, FTIR and 1H NMR spectroscopies indicate that ferricyanide [Fe(CN)6]3− but not of ferrocyanide [Fe(CN)6]4− can form the complex when Ca2+ has been adsorbed previously to the membrane surface. In this condition, the anion is likely to act as a bridge between two opposing membranes causing a tight aggregation in which geometry and the polarizability of the ligands to Fe3+ play a role.ElsevierRepositório da Universidade de LisboaFrías, Maria A.Contis, GriseldaHollmann, AxelDisalvo, E. Anibal2014-03-27T14:41:45Z20122012-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10451/10788engColloids and Surfaces B: Biointerfaces 91 (2012) 26– 330927-7765http://dx.doi.org/10.1016/j.colsurfb.2011.10.046metadata only accessinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-08T15:56:33Zoai:repositorio.ul.pt:10451/10788Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:34:42.103256Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Coordination forces between lipid bilayers produced by ferricyanide and Ca2+
title Coordination forces between lipid bilayers produced by ferricyanide and Ca2+
spellingShingle Coordination forces between lipid bilayers produced by ferricyanide and Ca2+
Frías, Maria A.
Lipid membranes
Ferricyanide
Ca2+ ions
Vesicle aggregation
Complex adsorption
Zeta potential
title_short Coordination forces between lipid bilayers produced by ferricyanide and Ca2+
title_full Coordination forces between lipid bilayers produced by ferricyanide and Ca2+
title_fullStr Coordination forces between lipid bilayers produced by ferricyanide and Ca2+
title_full_unstemmed Coordination forces between lipid bilayers produced by ferricyanide and Ca2+
title_sort Coordination forces between lipid bilayers produced by ferricyanide and Ca2+
author Frías, Maria A.
author_facet Frías, Maria A.
Contis, Griselda
Hollmann, Axel
Disalvo, E. Anibal
author_role author
author2 Contis, Griselda
Hollmann, Axel
Disalvo, E. Anibal
author2_role author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Frías, Maria A.
Contis, Griselda
Hollmann, Axel
Disalvo, E. Anibal
dc.subject.por.fl_str_mv Lipid membranes
Ferricyanide
Ca2+ ions
Vesicle aggregation
Complex adsorption
Zeta potential
topic Lipid membranes
Ferricyanide
Ca2+ ions
Vesicle aggregation
Complex adsorption
Zeta potential
description © 2011 Elsevier B.V. All rights reserved.
publishDate 2012
dc.date.none.fl_str_mv 2012
2012-01-01T00:00:00Z
2014-03-27T14:41:45Z
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 http://hdl.handle.net/10451/10788
url http://hdl.handle.net/10451/10788
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Colloids and Surfaces B: Biointerfaces 91 (2012) 26– 33
0927-7765
http://dx.doi.org/10.1016/j.colsurfb.2011.10.046
dc.rights.driver.fl_str_mv metadata only access
info:eu-repo/semantics/openAccess
rights_invalid_str_mv metadata only access
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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