000845319 001__ 845319 000845319 005__ 20240610121216.0 000845319 0247_ $$2doi$$a10.1063/1.5001886 000845319 0247_ $$2ISSN$$a0021-9606 000845319 0247_ $$2ISSN$$a1089-7690 000845319 0247_ $$2Handle$$a2128/18273 000845319 0247_ $$2pmid$$apmid:29495770 000845319 0247_ $$2WOS$$aWOS:000426582700035 000845319 0247_ $$2altmetric$$aaltmetric:34121515 000845319 037__ $$aFZJ-2018-02597 000845319 082__ $$a540 000845319 1001_ $$0P:(DE-Juel1)130972$$aSingh, Sunil P.$$b0 000845319 245__ $$aSteady state sedimentation of ultrasoft colloids 000845319 260__ $$aMelville, NY$$bAmerican Institute of Physics$$c2018 000845319 3367_ $$2DRIVER$$aarticle 000845319 3367_ $$2DataCite$$aOutput Types/Journal article 000845319 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1524572728_25910 000845319 3367_ $$2BibTeX$$aARTICLE 000845319 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000845319 3367_ $$00$$2EndNote$$aJournal Article 000845319 520__ $$aThe structural and dynamical properties of ultra-soft colloids—star polymers—exposed to a uniform external force field are analyzed by applying the multiparticle collision dynamics technique, a hybrid coarse-grain mesoscale simulation approach, which captures thermal fluctuations and long-range hydrodynamic interactions. In the weak-field limit, the structure of the star polymer is nearly unchanged; however, in an intermediate regime, the radius of gyration decreases, in particular transverse to the sedimentation direction. In the limit of a strong field, the radius of gyration increases with field strength. Correspondingly, the sedimentation coefficient increases with increasing field strength, passes through a maximum, and decreases again at high field strengths. The maximum value depends on the functionality of the star polymer. High field strengths lead to symmetry breaking with trailing, strongly stretched polymer arms and a compact star-polymer body. In the weak-field-linear response regime, the sedimentation coefficient follows the scaling relation of a star polymer in terms of functionality and arm length 000845319 536__ $$0G:(DE-HGF)POF3-551$$a551 - Functional Macromolecules and Complexes (POF3-551)$$cPOF3-551$$fPOF III$$x0 000845319 588__ $$aDataset connected to CrossRef 000845319 7001_ $$0P:(DE-Juel1)130665$$aGompper, Gerhard$$b1$$eCorresponding author 000845319 7001_ $$0P:(DE-Juel1)131039$$aWinkler, Roland G.$$b2$$eCorresponding author$$ufzj 000845319 773__ $$0PERI:(DE-600)1473050-9$$a10.1063/1.5001886$$gVol. 148, no. 8, p. 084901 -$$n8$$p084901$$tThe journal of chemical physics$$v148$$x1089-7690$$y2018 000845319 8564_ $$uhttps://juser.fz-juelich.de/record/845319/files/1.5001886.pdf$$yPublished on 2018-02-22. Available in OpenAccess from 2019-02-22. 000845319 8564_ $$uhttps://juser.fz-juelich.de/record/845319/files/1.5001886.gif?subformat=icon$$xicon$$yPublished on 2018-02-22. Available in OpenAccess from 2019-02-22. 000845319 8564_ $$uhttps://juser.fz-juelich.de/record/845319/files/1.5001886.jpg?subformat=icon-1440$$xicon-1440$$yPublished on 2018-02-22. Available in OpenAccess from 2019-02-22. 000845319 8564_ $$uhttps://juser.fz-juelich.de/record/845319/files/1.5001886.jpg?subformat=icon-180$$xicon-180$$yPublished on 2018-02-22. Available in OpenAccess from 2019-02-22. 000845319 8564_ $$uhttps://juser.fz-juelich.de/record/845319/files/1.5001886.jpg?subformat=icon-640$$xicon-640$$yPublished on 2018-02-22. Available in OpenAccess from 2019-02-22. 000845319 8564_ $$uhttps://juser.fz-juelich.de/record/845319/files/1.5001886.pdf?subformat=pdfa$$xpdfa$$yPublished on 2018-02-22. 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