000911667 001__ 911667
000911667 005__ 20221124131043.0
000911667 037__ $$aFZJ-2022-04922
000911667 041__ $$aEnglish
000911667 1001_ $$0P:(DE-Juel1)130858$$aNaegele, Gerhard$$b0$$eCorresponding author
000911667 1112_ $$aEuropean Colloid and Interface Society Conference 2022$$cCrete$$d2022-09-04 - 2022-09-09$$gECIS2022$$wGreece
000911667 245__ $$aClustering and dynamics in Q2D dispersions of proteins with competing interactions
000911667 260__ $$c2022
000911667 3367_ $$033$$2EndNote$$aConference Paper
000911667 3367_ $$2DataCite$$aOther
000911667 3367_ $$2BibTeX$$aINPROCEEDINGS
000911667 3367_ $$2DRIVER$$aconferenceObject
000911667 3367_ $$2ORCID$$aLECTURE_SPEECH
000911667 3367_ $$0PUB:(DE-HGF)6$$2PUB:(DE-HGF)$$aConference Presentation$$bconf$$mconf$$s1669276428_10477$$xAfter Call
000911667 520__ $$aDispersions of globular proteins or colloids with competing short-range attractive (SA) and long-range repulsive (LR) interactions exhibit a rich phase behavior with a variety of different cluster phases.  While three-dimensional SALR dispersions have been intensely studied  also regarding their cluster dynamics, little is known about the structure and dynamics of quasi-two-dimensional (Q2D) dispersions. The SALR particles in a Q2D dispersion form a planar monolayer inside  the bulk fluid, with their centres confined to in-plane Brownian motion. The interplay of Q2D motion, SALR direct interactions and solvent-mediated hydrodynamic interactions (HIs) give rise to peculiar effects such as anomalously enhanced collective diffusion. Using Langevin dynamics simulations, we have determined the generalized phase diagram, and cluster shape and size distributions of a generic Q2D model dispersion of SALR particles. The particles in the monolayer are described as Brownian spheres interacting via short-range attractive generalized Lenard-Jones and long-range repulsive screened Coulomb potential contributions. These interactions apply, e.g., to protein solutions under low-salinity conditions. Additionally, in an elaborate multiparticle collision dynamics (MPC) simulation study, we explored  hydrodynamic and direct interaction effects on the Q2D translational and rotational particles diffusion.  The MPC study covers a broad range of correlation times, from very short times where the particle dynamics is non-instantaneously affected by sound propagation and transversal momentum diffusion in the solvent, to long times where HIs are fully developed. We analyzed the concentration dependence of collective diffusion at different wavenumbers, in conjunction with mean-squared displacements and real-space van Hove functions characterizing self- and collective diffusion, and non-Gaussian dynamics. To reveal the development of inter-particles HIs by multiple scattering of sound and vorticity diffusion, we examined velocity self- and cross-correlations in conjunction with associated time-dependent hydrodynamic functions.
000911667 536__ $$0G:(DE-HGF)POF4-5244$$a5244 - Information Processing in Neuronal Networks (POF4-524)$$cPOF4-524$$fPOF IV$$x0
000911667 65017 $$0V:(DE-MLZ)GC-1602-2016$$2V:(DE-HGF)$$aPolymers, Soft Nano Particles and  Proteins$$x0
000911667 7001_ $$0P:(DE-Juel1)165875$$aTan, Zihan$$b1
000911667 7001_ $$0P:(DE-Juel1)130616$$aDhont, Jan K. G.$$b2
000911667 909CO $$ooai:juser.fz-juelich.de:911667$$pVDB
000911667 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)130858$$aForschungszentrum Jülich$$b0$$kFZJ
000911667 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)165875$$aForschungszentrum Jülich$$b1$$kFZJ
000911667 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)130616$$aForschungszentrum Jülich$$b2$$kFZJ
000911667 9131_ $$0G:(DE-HGF)POF4-524$$1G:(DE-HGF)POF4-520$$2G:(DE-HGF)POF4-500$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF4-5244$$aDE-HGF$$bKey Technologies$$lNatural, Artificial and Cognitive Information Processing$$vMolecular and Cellular Information Processing$$x0
000911667 9141_ $$y2022
000911667 920__ $$lyes
000911667 9201_ $$0I:(DE-Juel1)IBI-4-20200312$$kIBI-4$$lBiomakromolekulare Systeme und Prozesse$$x0
000911667 980__ $$aconf
000911667 980__ $$aVDB
000911667 980__ $$aI:(DE-Juel1)IBI-4-20200312
000911667 980__ $$aUNRESTRICTED