Structuring of macroions confined between like-charged surfaces

Langmuir : the ACS Journal of Surfaces and Colloids
Aysen TulparJohn Y Walz

Abstract

We investigate the structuring of charged spherical nanoparticles and micelles (i.e., "macroions") between two surfaces as a function of bulk macroion concentration. Structuring is deduced from measured force profiles between a silica particle and a silica plate in the presence of an aqueous macroion (Ludox silica nanoparticle or sodium dodecyl sulfate micelle) solution, obtained with an atomic force microscope. We observe oscillatory force profiles that decay with separation. We find that the wavelength of the force profiles scales with the bulk number density as rho(-)(1/3), rather than with the effective macroion size. Only at very high silica nanoparticle concentration (above 10 vol %) in a low ionic strength solution does the wavelength become smaller than that predicted by the simple rho(-)(1/3) scaling; however, the original scaling is recovered upon the addition of a small amount of electrolyte. A comparison between the measured wavelength and the predicted spacing between the macroions in the bulk shows that the two variables differ in both magnitude and bulk density scaling. This finding suggests that confined macroions are more ordered than those in the bulk and the nature of this ordering is maintained over a relati...Continue Reading

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Citations

Apr 28, 2007·The Journal of Chemical Physics·Madeleine Kittner, Sabine H L Klapp
Mar 17, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Yan Zeng, Regine von Klitzing
Nov 3, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Xiaochen XingTo Ngai
Apr 19, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·David Herman, John Y Walz
Apr 21, 2011·Nanoscale·Jesse RooseAndreas Hartwig
Jan 23, 2016·Biointerphases·Buddha Ratna Shrestha, Xavier Banquy
Sep 1, 2012·Advances in Colloid and Interface Science·Svetoslav E AnachkovKavssery P Ananthapadmanabhan
Oct 11, 2011·Journal of Colloid and Interface Science·Clayton T McKee, John Y Walz
Sep 8, 2015·Advances in Colloid and Interface Science·Wei WangJing Gong
Jul 17, 2012·Advances in Colloid and Interface Science·Georgia A Pilkington, Wuge H Briscoe
Apr 6, 2013·Advances in Colloid and Interface Science·Krassimir D DanovKavssery P Ananthapadmanabhan
Apr 1, 2015·Journal of Colloid and Interface Science·Yan ZengRegine von Klitzing
Jan 28, 2014·Journal of Colloid and Interface Science·G K James, J Y Walz
Jan 14, 2012·Journal of Colloid and Interface Science·Rico F TaborDerek Y C Chan
Jun 23, 2018·Soft Matter·Sebastian Schön, Regine von Klitzing
Oct 21, 2009·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Felipe Jiménez-ÁngelesMarcelo Lozada-Cassou
Jun 12, 2012·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Jiayi WenBo Li
Nov 2, 2012·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Yan Zeng, Regine von Klitzing
Mar 5, 2009·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Guillaume Tresset
Dec 29, 2020·Physical Chemistry Chemical Physics : PCCP·Michael Ludwig, Regine von Klitzing
Jun 4, 2008·Physical Review Letters·Sabine H L KlappRegine von Klitzing
Jun 25, 2009·The Journal of Physical Chemistry. B·Babak FazelabdolabadiPaul R Van Tassel
Jan 14, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Nikolay C ChristovRegine von Klitzing
Jun 18, 2021·Proceedings of the National Academy of Sciences of the United States of America·Chrystian OchoaVivek Sharma
Aug 9, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Nozomi AraiMinoru T Miyahara
Nov 18, 2020·Langmuir : the ACS Journal of Surfaces and Colloids·Liam R J ScarrattMichal Borkovec
Apr 11, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·David Herman, John Y Walz
Sep 5, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Sebastian SchönRegine von Klitzing
Feb 24, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Aysen TulparJohn Y Walz
Sep 20, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Ratna J Oetama, John Y Walz
Apr 10, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Jan Forsman
Oct 4, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Jaroslaw DrelichJacob Masliyah
Jan 26, 2007·The Journal of Physical Chemistry. B·Sabine H L KlappRegine V Klitzing

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