000867481 001__ 867481
000867481 005__ 20240619083557.0
000867481 037__ $$aFZJ-2019-06120
000867481 1001_ $$0P:(DE-Juel1)130797$$aLettinga, M.P.$$b0$$eCorresponding author$$ufzj
000867481 1112_ $$aFallmeeting Society of Rheology$$cRaleigh$$d2019-10-21 - 2019-10-24$$wUSA
000867481 245__ $$aQuantitative understanding of sheared colloidal rods and the effect of length and stiffness
000867481 260__ $$c2019
000867481 3367_ $$033$$2EndNote$$aConference Paper
000867481 3367_ $$2DataCite$$aOther
000867481 3367_ $$2BibTeX$$aINPROCEEDINGS
000867481 3367_ $$2DRIVER$$aconferenceObject
000867481 3367_ $$2ORCID$$aLECTURE_SPEECH
000867481 3367_ $$0PUB:(DE-HGF)6$$2PUB:(DE-HGF)$$aConference Presentation$$bconf$$mconf$$s1576682171_5426$$xAfter Call
000867481 520__ $$aHigh-aspect-ratio colloidal rods are becoming increasingly important in a wide range of technological applications and products. In biology they constitute the frame of the cytoskeleton, in the form of F-actin and micro-tubular networks, while amyloids are responsible for e.g.  Alzheimer disease. The mechanical response of complex fluids containing rod-like colloids is hugely affected by the shape of the particle, though a direct relation has not been identified so far. The key to a bottom up understanding is to identify the role of rod morphology on the microscopic structural response to flow, underlying the macroscopic mechanical response. Here, we use a library of monodisperse bio-engineering viruses with variable length and stiffness, for which we determine the exact relation between structural  and mechanical response by a combination of rheology and Small Angle Neutron Scattering, resolving the orientational ordering of rod-like viruses in the flow-gradient and the flow-vorticity plane [1]. This approach allowed us to determine quantitatively the length dependence of the zero-shear viscosity [3] and shear thing behavior, using a revised version of the theory developed by Doi, Edwards, and Kuzuu to rationalize the flow behavior. Furthermore, we identified the effect of flexibility which diminishes viscosity at low shear rate and enhances it at high shear rates. The elongational viscosity of stiff rods obeys theoretical predictions, while it diminishes with flexibility [2]. Thus, this work establishes a fundament for understanding the non-linear flow behavior of more complex rod-like systems, which we demonstrate for ideal bi-disperse systems.
000867481 536__ $$0G:(DE-HGF)POF3-551$$a551 - Functional Macromolecules and Complexes (POF3-551)$$cPOF3-551$$fPOF III$$x0
000867481 536__ $$0G:(EU-Grant)641839$$aDiStruc - Directed Colloidal Structure at the Meso-Scale (641839)$$c641839$$fH2020-MSCA-ITN-2014$$x1
000867481 693__ $$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$$x0
000867481 7001_ $$0P:(DE-Juel1)168105$$aLang, Christian$$b1$$ufzj
000867481 7001_ $$0P:(DE-Juel1)130905$$aRadulescu, Aurel$$b2$$ufzj
000867481 7001_ $$0P:(DE-Juel1)130968$$aSellinghoff, Karin$$b3$$ufzj
000867481 7001_ $$0P:(DE-HGF)0$$aPorcar, Lionel$$b4
000867481 7001_ $$0P:(DE-HGF)0$$aKohlbrecher, Joachim$$b5
000867481 909CO $$ooai:juser.fz-juelich.de:867481$$pec_fundedresources$$pVDB$$popenaire
000867481 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)130797$$aForschungszentrum Jülich$$b0$$kFZJ
000867481 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)168105$$aForschungszentrum Jülich$$b1$$kFZJ
000867481 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)130905$$aForschungszentrum Jülich$$b2$$kFZJ
000867481 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)130968$$aForschungszentrum Jülich$$b3$$kFZJ
000867481 9131_ $$0G:(DE-HGF)POF3-551$$1G:(DE-HGF)POF3-550$$2G:(DE-HGF)POF3-500$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bKey Technologies$$lBioSoft – Fundamentals for future Technologies in the fields of Soft Matter and Life Sciences$$vFunctional Macromolecules and Complexes$$x0
000867481 9141_ $$y2019
000867481 920__ $$lyes
000867481 9201_ $$0I:(DE-Juel1)ICS-3-20110106$$kICS-3$$lWeiche Materie$$x0
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