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Bolaform surfactants with polyoxometalate head groups and their assembly into ultra-small monolayer membrane vesicles

Surfactants are indispensable in established technologies as detergents or emulsification agents, and also in recent studies for controlling the growth of nanoparticles or for creating nanocarriers. Although the properties of conventional, organic surfactants are thoroughly explored, strong interest...

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Detalles Bibliográficos
Autores principales: Landsmann, Steve, Luka, Martin, Polarz, Sebastian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Pub. Group 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3535418/
https://www.ncbi.nlm.nih.gov/pubmed/23250429
http://dx.doi.org/10.1038/ncomms2321
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author Landsmann, Steve
Luka, Martin
Polarz, Sebastian
author_facet Landsmann, Steve
Luka, Martin
Polarz, Sebastian
author_sort Landsmann, Steve
collection PubMed
description Surfactants are indispensable in established technologies as detergents or emulsification agents, and also in recent studies for controlling the growth of nanoparticles or for creating nanocarriers. Although the properties of conventional, organic surfactants are thoroughly explored, strong interest persists in surfactants that possess unique features inaccessible for ordinary systems. Here we present dipolar, bolaform surfactants with a head group comprising of 11 tungsten atoms. These novel compounds are characterized by an exceptionally low critical self-organization concentration, which leads to monolayer vesicles with a diameter of only 15 nm, that is, substantially smaller than for any other system. The membrane of the vesicles is impermeable for water-soluble and oil-soluble guests. Control over release kinetics, which can be followed via the quantitative fluorescence quenching of confined fluorophores, is gained by means of pH adjustments.
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spelling pubmed-35354182013-01-03 Bolaform surfactants with polyoxometalate head groups and their assembly into ultra-small monolayer membrane vesicles Landsmann, Steve Luka, Martin Polarz, Sebastian Nat Commun Article Surfactants are indispensable in established technologies as detergents or emulsification agents, and also in recent studies for controlling the growth of nanoparticles or for creating nanocarriers. Although the properties of conventional, organic surfactants are thoroughly explored, strong interest persists in surfactants that possess unique features inaccessible for ordinary systems. Here we present dipolar, bolaform surfactants with a head group comprising of 11 tungsten atoms. These novel compounds are characterized by an exceptionally low critical self-organization concentration, which leads to monolayer vesicles with a diameter of only 15 nm, that is, substantially smaller than for any other system. The membrane of the vesicles is impermeable for water-soluble and oil-soluble guests. Control over release kinetics, which can be followed via the quantitative fluorescence quenching of confined fluorophores, is gained by means of pH adjustments. Nature Pub. Group 2012-12-18 /pmc/articles/PMC3535418/ /pubmed/23250429 http://dx.doi.org/10.1038/ncomms2321 Text en Copyright © 2012, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/
spellingShingle Article
Landsmann, Steve
Luka, Martin
Polarz, Sebastian
Bolaform surfactants with polyoxometalate head groups and their assembly into ultra-small monolayer membrane vesicles
title Bolaform surfactants with polyoxometalate head groups and their assembly into ultra-small monolayer membrane vesicles
title_full Bolaform surfactants with polyoxometalate head groups and their assembly into ultra-small monolayer membrane vesicles
title_fullStr Bolaform surfactants with polyoxometalate head groups and their assembly into ultra-small monolayer membrane vesicles
title_full_unstemmed Bolaform surfactants with polyoxometalate head groups and their assembly into ultra-small monolayer membrane vesicles
title_short Bolaform surfactants with polyoxometalate head groups and their assembly into ultra-small monolayer membrane vesicles
title_sort bolaform surfactants with polyoxometalate head groups and their assembly into ultra-small monolayer membrane vesicles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3535418/
https://www.ncbi.nlm.nih.gov/pubmed/23250429
http://dx.doi.org/10.1038/ncomms2321
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