Pressure effect on micellization of non-ionic surfactant Triton X-100

Micellar aggregates can be arranged in new types of conformational assemblies when they are isotropically compressed. Thus, the pressure effects in the underlying fundamental interactions leading to self-assembly of micellar aggregates can be represented by changes in the phase boundaries with incre...

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Autores principales: Espinosa Silva, Yanis Ricardo, Caffarena, Ernesto Raúl, Berrueta Martínez, Yanina, Grigera, José Raúl
Formato: Articulo
Lenguaje:Inglés
Publicado: 2018
Materias:
Biología
Física
Triton X-100
Self-assembly
Pressure effects
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/99468
https://ri.conicet.gov.ar/11336/90672
http://aip.scitation.org/doi/10.1063/1.5003358
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-99468
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Biología
Física
Triton X-100
Self-assembly
Pressure effects
spellingShingle Biología
Física
Triton X-100
Self-assembly
Pressure effects
Espinosa Silva, Yanis Ricardo
Caffarena, Ernesto Raúl
Berrueta Martínez, Yanina
Grigera, José Raúl
Pressure effect on micellization of non-ionic surfactant Triton X-100
topic_facet Biología
Física
Triton X-100
Self-assembly
Pressure effects
description Micellar aggregates can be arranged in new types of conformational assemblies when they are isotropically compressed. Thus, the pressure effects in the underlying fundamental interactions leading to self-assembly of micellar aggregates can be represented by changes in the phase boundaries with increasing pressure. In this paper, we have employed molecular dynamics simulations to study the self-assembly of micelles composed of the non-ionic surfactant Triton X-100 at the atomic scale, monitoring the changes in the solvation dynamics when the micelles are subjected to a wide range of hydrostatic pressures. The computational molecular model was capable of self-assembling and forming a non-ionic micelle, which subsequently was coupled to a high-pressure barostat producing a geometric transition of the micelle due to changes in the solvation dynamics. Accordingly, under a high pressure regime, the hydrogen bonds are redistributed, the water density is modified, and water acts as an unstructured liquid, capable of penetrating into the micelle.
format Articulo
Articulo
author Espinosa Silva, Yanis Ricardo
Caffarena, Ernesto Raúl
Berrueta Martínez, Yanina
Grigera, José Raúl
author_facet Espinosa Silva, Yanis Ricardo
Caffarena, Ernesto Raúl
Berrueta Martínez, Yanina
Grigera, José Raúl
author_sort Espinosa Silva, Yanis Ricardo
title Pressure effect on micellization of non-ionic surfactant Triton X-100
title_short Pressure effect on micellization of non-ionic surfactant Triton X-100
title_full Pressure effect on micellization of non-ionic surfactant Triton X-100
title_fullStr Pressure effect on micellization of non-ionic surfactant Triton X-100
title_full_unstemmed Pressure effect on micellization of non-ionic surfactant Triton X-100
title_sort pressure effect on micellization of non-ionic surfactant triton x-100
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/99468
https://ri.conicet.gov.ar/11336/90672
http://aip.scitation.org/doi/10.1063/1.5003358
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