Steady state sedimentation of ultrasoft colloids

The Journal of Chemical Physics
Sunil P SinghRoland G Winkler

Abstract

The structural and dynamical properties of ultra-soft colloids-star polymers-exposed to a uniform external force field are analyzed by applying the multiparticle collision dynamics technique, a hybrid coarse-grain mesoscale simulation approach, which captures thermal fluctuations and long-range hydrodynamic interactions. In the weak-field limit, the structure of the star polymer is nearly unchanged; however, in an intermediate regime, the radius of gyration decreases, in particular transverse to the sedimentation direction. In the limit of a strong field, the radius of gyration increases with field strength. Correspondingly, the sedimentation coefficient increases with increasing field strength, passes through a maximum, and decreases again at high field strengths. The maximum value depends on the functionality of the star polymer. High field strengths lead to symmetry breaking with trailing, strongly stretched polymer arms and a compact star-polymer body. In the weak-field-linear response regime, the sedimentation coefficient follows the scaling relation of a star polymer in terms of functionality and arm length.

References

Jul 1, 1976·Biophysical Chemistry·B H ZimmC B Zimm
Aug 1, 1993·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·D Ertas, M Kardar
Mar 12, 1999·Science·D E SmithS Chu
Jul 20, 1999·Annual Review of Biophysics and Biomolecular Structure·T M Laue, W F Stafford
Mar 8, 2003·American Journal of Physiology. Heart and Circulatory Physiology·Katherine B Abbitt, Gerard B Nash
Mar 11, 2004·The European Physical Journal. E, Soft Matter·N KikuchiJ M Yeomans
Jul 23, 2004·The Journal of Chemical Physics·Richard M JendrejackMichael D Graham
Dec 17, 2004·Physical Review Letters·J T Padding, A A Louis
Feb 9, 2005·Physical Review Letters·Hiroshi Noguchi, Gerhard Gompper
Jun 11, 2005·The Journal of Chemical Physics·M A Webster, J M Yeomans
Aug 11, 2005·Physical Review Letters·Charles M SchroederSteven Chu
Sep 28, 2005·Proceedings of the National Academy of Sciences of the United States of America·Hiroshi Noguchi, Gerhard Gompper
Oct 22, 2005·The Journal of Chemical Physics·K MussawisadeG Gompper
Oct 26, 2005·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·T Ihle, D M Kroll
Feb 21, 2006·Physical Review Letters·Chaouqi Misbah
Feb 21, 2006·Physical Review Letters·Vasiliy Kantsler, Victor Steinberg
Feb 21, 2006·Physical Review Letters·Sergiy Gerashchenko, Victor Steinberg
May 23, 2006·Physical Review Letters·M RipollG Gompper
Jul 21, 2006·The Journal of Physical Chemistry. B·C M Pooley, J M Yeomans
Oct 10, 2006·Physical Review Letters·Roland G Winkler
Nov 30, 2006·The Journal of Chemical Physics·J F Ryder, J M Yeomans
Mar 16, 2007·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Petia M Vlahovska, Ruben Serral Gracia
May 16, 2007·Physical Review Letters·Xaver Schlagberger, Roland R Netz
May 16, 2007·Physical Review Letters·Manouk AbkarianAnnie Viallat
Feb 1, 2008·Physical Review Letters·V V LebedevS S Vergeles
Sep 4, 2008·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Hiroshi Noguchi, Gerhard Gompper
Oct 15, 2008·Physical Review Letters·Igor V Pivkin, George Em Karniadakis
Feb 26, 2009·The Journal of Chemical Physics·Roland G Winkler, Chien-Cheng Huang
Apr 17, 2009·Proceedings of the National Academy of Sciences of the United States of America·J Liam McWhirterGerhard Gompper
Nov 13, 2009·Physical Review Letters·Badr KaouiChaouqi Misbah
Dec 23, 2009·The Journal of Chemical Physics·Sandra Frank, Roland G Winkler
Aug 24, 2010·The Journal of Chemical Physics·Arash Nikoubashman, Christos N Likos
Nov 24, 2011·Physical Review Letters·Sunil P SinghGerhard Gompper
Jun 29, 2012·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Chien-Cheng HuangRoland G Winkler
Sep 26, 2012·Physical Review Letters·Andreas Zöttl, Holger Stark
Nov 2, 2012·Journal of Physics. Condensed Matter : an Institute of Physics Journal·S GuptaD Richter
Nov 2, 2012·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Sunil P SinghGerhard Gompper
Dec 6, 2012·Proceedings of the National Academy of Sciences of the United States of America·Jules DupireAnnie Viallat
Dec 12, 2012·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Chien-Cheng HuangRoland G Winkler
Dec 12, 2012·Physical Review Letters·Raghunath ChelakkotGerhard Gompper
Mar 15, 2013·Proceedings of the National Academy of Sciences of the United States of America·Jens Elgeti, Gerhard Gompper
Mar 26, 2013·Physical Review Letters·Markus HarasimAndreas R Bausch
Mar 19, 2014·Advances in Colloid and Interface Science·David AbreuUdo Seifert
Apr 23, 2014·Soft Matter·Dmitry A FedosovGerhard Gompper
Apr 14, 2013·The Journal of Chemical Physics·Chien-Cheng HuangRoland G Winkler
Jul 12, 2014·Soft Matter·Mingcheng YangMarisol Ripoll
Sep 1, 2014·The Journal of Chemical Physics·Sunil P SinghRoland G Winkler
Feb 14, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Chien-Cheng HuangRoland G Winkler

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Citations

Nov 6, 2018·The Journal of Chemical Physics·H H Katkar, M Muthukumar
Apr 11, 2019·Polymers·Deepika Srivastva, Arash Nikoubashman
Nov 11, 2019·The Journal of Chemical Physics·Keerthi Radhakrishnan, Sunil P Singh
Aug 24, 2019·The Journal of Chemical Physics·José Ruiz-FrancoEmanuela Zaccarelli
Jun 25, 2020·Physical Review. E·Aitor Martin-GomezRoland G Winkler
Jun 20, 2019·Physical Review. E·Nikolai I LebovkaNikolai V Vygornitskii

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