Structural properties of cationic surfactant-fatty alcohol bilayers: insights from dissipative particle dynamics.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F21%3A00547868" target="_blank" >RIV/67985858:_____/21:00547868 - isvavai.cz</a>

Alternative codes found

RIV/44555601:13440/21:43896378

Result on the web

<a href="http://hdl.handle.net/11104/0324034" target="_blank" >http://hdl.handle.net/11104/0324034</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d1sm00850a" target="_blank" >10.1039/d1sm00850a</a>

Result language

angličtina

Original language name

Structural properties of cationic surfactant-fatty alcohol bilayers: insights from dissipative particle dynamics.

Original language description

Bilayers, self-assembled by cationic surfactants and fatty alcohols in water, are the basic units of lamellar gel networks – creamy formulations extensively used in cosmetics and pharmaceutics. Mesoscopic modelling and study of the bilayers formed by single- or double-tail cationic surfactants (CTAC or DHDAC), and fatty alcohols (FAs) in the lamellar fluid and gel phases were employed. Fatty alcohols with alkyl tail equal to or greater than the surfactant alkyl tail, i.e., C16FA or C18FA and C22FA, were considered. A model formulation was explored with the FA concentration greater than that of the surfactant and the structure of the fluid and gel bilayers in tensionless state characterised via the density profiles across the bilayers, orientational order parameters of the surfactant and FA chains, intrinsic analysis of the bilayer interfaces, and bending rigidity. The intrinsic analysis allows identification and quantification of the coexistence of the interdigitated and non-interdigitated phases present within the gel bilayers. The FA chains were found to conform the primary scaffolding of the bilayers while the surfactant chains tessellate bilayer monolayers from their water-hydrophobic interface. Further, the overlap of the FA chains from the apposed monolayers of the fluid bilayers rises with increasing FA length. Finally, the prevalence of the non-interdigitated phase over the interdigitated phase within the gel bilayers becomes enhanced upon the FA length increase with a preference of the surfactant chains to reside in the non-interdigitated phase rather than the interdigitated phase.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10403 - Physical chemistry

Project

<a href="/en/project/EF17_048%2F0007411" target="_blank" >EF17_048/0007411: UniQSurf - Centre of biointerfaces and hybrid functional materials</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Soft Matter

ISSN

1744-683X

e-ISSN

1744-6848

Volume of the periodical

17

Issue of the periodical within the volume

OCT 21

Country of publishing house

GB - UNITED KINGDOM

Number of pages

18

Pages from-to

"9967–9984"

UT code for WoS article

000711594600001

EID of the result in the Scopus database

2-s2.0-85118935477