000851481 001__ 851481 000851481 005__ 20210129234921.0 000851481 0247_ $$2doi$$a10.1063/1.5026100 000851481 0247_ $$2ISSN$$a0021-9606 000851481 0247_ $$2ISSN$$a1089-7690 000851481 0247_ $$2Handle$$a2128/19647 000851481 0247_ $$2pmid$$apmid:29739205 000851481 0247_ $$2WOS$$aWOS:000431685500026 000851481 037__ $$aFZJ-2018-05117 000851481 082__ $$a540 000851481 1001_ $$00000-0002-8988-330X$$aScotti, A.$$b0$$eCorresponding author 000851481 245__ $$aHollow microgels squeezed in overcrowded environments 000851481 260__ $$aMelville, NY$$bAmerican Institute of Physics$$c2018 000851481 3367_ $$2DRIVER$$aarticle 000851481 3367_ $$2DataCite$$aOutput Types/Journal article 000851481 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1552414487_13870 000851481 3367_ $$2BibTeX$$aARTICLE 000851481 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000851481 3367_ $$00$$2EndNote$$aJournal Article 000851481 520__ $$aWe study how a cavity changes the response of hollow microgels with respect to regular ones in overcrowded environments. The structural changes of hollow poly(N-isopropylacrylamide) microgels embedded within a matrix of regular ones are probed by small-angle neutron scattering with contrast variation. The form factors of the microgels at increasing compressions are directly measured. The decrease of the cavity size with increasing concentration shows that the hollow microgels have an alternative way with respect to regular cross-linked ones to respond to the squeezing due to their neighbors. The structural changes under compression are supported by the radial density profiles obtained with computer simulations. The presence of the cavity offers to the polymer network the possibility to expand toward the center of the microgels in response to the overcrowded environment. Furthermore, upon increasing compression, a two step transition occurs: First the microgels are compressed but the internal structure is unchanged; then, further compression causes the fuzzy shell to collapse completely and reduce the size of the cavity. Computer simulations also allow studying higher compression degrees than in the experiments leading to the microgel’s faceting 000851481 536__ $$0G:(DE-HGF)POF3-6G15$$a6G15 - FRM II / MLZ (POF3-6G15)$$cPOF3-6G15$$fPOF III$$x0 000851481 536__ $$0G:(DE-HGF)POF3-6G4$$a6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)$$cPOF3-623$$fPOF III$$x1 000851481 536__ $$0G:(DE-Juel1)jhpc41_20160501$$aAmphoteric Microgels for Uptake and Release of Polyelectrolytes (jhpc41_20160501)$$cjhpc41_20160501$$fAmphoteric Microgels for Uptake and Release of Polyelectrolytes$$x2 000851481 588__ $$aDataset connected to CrossRef 000851481 65027 $$0V:(DE-MLZ)SciArea-210$$2V:(DE-HGF)$$aSoft Condensed Matter$$x0 000851481 65017 $$0V:(DE-MLZ)GC-1602-2016$$2V:(DE-HGF)$$aPolymers, Soft Nano Particles and Proteins$$x0 000851481 693__ $$0EXP:(DE-MLZ)KWS2-20140101$$1EXP:(DE-MLZ)FRMII-20140101$$5EXP:(DE-MLZ)KWS2-20140101$$6EXP:(DE-MLZ)NL3ao-20140101$$aForschungs-Neutronenquelle Heinz Maier-Leibnitz $$eKWS-2: Small angle scattering diffractometer$$fNL3ao$$x0 000851481 7001_ $$0P:(DE-Juel1)IHRS-BioSoft-140004$$aBrugnoni, M.$$b1 000851481 7001_ $$0P:(DE-HGF)0$$aRudov, A. A.$$b2 000851481 7001_ $$0P:(DE-Juel1)171614$$aHouston, Judith$$b3 000851481 7001_ $$00000-0002-6687-7732$$aPotemkin, I. I.$$b4 000851481 7001_ $$0P:(DE-Juel1)IHRS-BioSoft-140012$$aRichtering, W.$$b5$$eCorresponding author 000851481 773__ $$0PERI:(DE-600)1473050-9$$a10.1063/1.5026100$$gVol. 148, no. 17, p. 174903 -$$n17$$p174903 -$$tThe journal of chemical physics$$v148$$x1089-7690$$y2018 000851481 8564_ $$uhttps://juser.fz-juelich.de/record/851481/files/1.5026100.pdf$$yPublished on 2018-05-03. Available in OpenAccess from 2019-05-03. 000851481 8564_ $$uhttps://juser.fz-juelich.de/record/851481/files/1.5026100.pdf?subformat=pdfa$$xpdfa$$yPublished on 2018-05-03. Available in OpenAccess from 2019-05-03. 000851481 909CO $$ooai:juser.fz-juelich.de:851481$$pdnbdelivery$$pVDB$$pVDB:MLZ$$pdriver$$popen_access$$popenaire 000851481 9101_ $$0I:(DE-HGF)0$$6P:(DE-Juel1)IHRS-BioSoft-140004$$aExternal Institute$$b1$$kExtern 000851481 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)171614$$aForschungszentrum Jülich$$b3$$kFZJ 000851481 9101_ $$0I:(DE-HGF)0$$6P:(DE-Juel1)IHRS-BioSoft-140012$$aExternal Institute$$b5$$kExtern 000851481 9131_ $$0G:(DE-HGF)POF3-6G15$$1G:(DE-HGF)POF3-6G0$$2G:(DE-HGF)POF3-600$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF3-6G15$$aDE-HGF$$bForschungsbereich Materie$$lGroßgeräte: Materie$$vFRM II / MLZ$$x0 000851481 9131_ $$0G:(DE-HGF)POF3-623$$1G:(DE-HGF)POF3-620$$2G:(DE-HGF)POF3-600$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF3-6G4$$aDE-HGF$$bForschungsbereich Materie$$lVon Materie zu Materialien und Leben$$vFacility topic: Neutrons for Research on Condensed Matter$$x1 000851481 9141_ $$y2018 000851481 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS 000851481 915__ $$0StatID:(DE-HGF)0600$$2StatID$$aDBCoverage$$bEbsco Academic Search 000851481 915__ $$0StatID:(DE-HGF)0530$$2StatID$$aEmbargoed OpenAccess 000851481 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR$$bJ CHEM PHYS : 2015 000851481 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection 000851481 915__ $$0StatID:(DE-HGF)0110$$2StatID$$aWoS$$bScience Citation Index 000851481 915__ $$0StatID:(DE-HGF)0111$$2StatID$$aWoS$$bScience Citation Index Expanded 000851481 915__ $$0StatID:(DE-HGF)9900$$2StatID$$aIF < 5 000851481 915__ $$0StatID:(DE-HGF)0030$$2StatID$$aPeer Review$$bASC 000851481 915__ $$0StatID:(DE-HGF)1150$$2StatID$$aDBCoverage$$bCurrent Contents - Physical, Chemical and Earth Sciences 000851481 915__ $$0StatID:(DE-HGF)0310$$2StatID$$aDBCoverage$$bNCBI Molecular Biology Database 000851481 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline 000851481 915__ $$0StatID:(DE-HGF)0420$$2StatID$$aNationallizenz 000851481 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bThomson Reuters Master Journal List 000851481 920__ $$lyes 000851481 9201_ $$0I:(DE-Juel1)JCNS-FRM-II-20110218$$kJCNS-FRM-II$$lJCNS-FRM-II$$x0 000851481 9201_ $$0I:(DE-Juel1)JCNS-1-20110106$$kNeutronenstreuung ; JCNS-1$$lNeutronenstreuung $$x1 000851481 9201_ $$0I:(DE-82)080012_20140620$$kJARA-HPC$$lJARA - HPC$$x2 000851481 980__ $$ajournal 000851481 980__ $$aVDB 000851481 980__ $$aI:(DE-Juel1)JCNS-FRM-II-20110218 000851481 980__ $$aI:(DE-Juel1)JCNS-1-20110106 000851481 980__ $$aI:(DE-82)080012_20140620 000851481 980__ $$aUNRESTRICTED 000851481 9801_ $$aFullTexts