%0 Journal Article
%T In situ assessment of the contact angles of nanoparticles adsorbed at fluid interfaces by multiple angle of incidence ellipsometry
%+ Laboratoire Charles Coulomb (L2C)
%+ University of South Australia
%A Stocco, Antonio
%A Su, Ge
%A Nobili, Maurizio
%A In, Martin
%A Wang, Dayang
%< avec comité de lecture
%Z L2C:14-158
%@ 1744-683X
%J Soft Matter
%I Royal Society of Chemistry
%V 10
%N 36
%P 6999
%8 2014-09-28
%D 2014
%R 10.1039/C4SM00482E
%Z Chemical Sciences/Polymers
%Z Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft]
%Z Physics [physics]/Physics [physics]/Optics [physics.optics]
%Z Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph]Journal articles
%X Here multiple angle of incidence ellipsometry was successfully applied to in situ assess the contact angle and surface coverage of gold nanoparticles as small as 18 nm, coated with stimuli-responsive polymers, at water-oil and water-air interfaces in the presence of NaCl and NaOH, respectively. The interfacial adsorption of the nanoparticles was found very slow and took days to reach a fairly low surface coverage. For water-oil interfaces, in-situ nanoparticle contact angles agree with the macroscopic equilibrium contact angles of planar gold surfaces with the same polymer coatings; whilst for water-air interfaces, significant differences have been observed.
%G English
%2 https://hal.science/hal-01064084/document
%2 https://hal.science/hal-01064084/file/REVISEDmanuscriptSM-ART-03-2014-000482final.pdf
%L hal-01064084
%U https://hal.science/hal-01064084
%~ CNRS
%~ L2C
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UM-2015-2021