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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...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Pub. Group
2012
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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. |
format | Online Article Text |
id | pubmed-3535418 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Nature Pub. Group |
record_format | MEDLINE/PubMed |
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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