000888782 001__ 888782
000888782 005__ 20210130011123.0
000888782 0247_ $$2Handle$$a2128/26503
000888782 037__ $$aFZJ-2020-05211
000888782 041__ $$aEnglish
000888782 1001_ $$0P:(DE-Juel1)179461$$aMohanakumar, Shilpa$$b0$$eCorresponding author
000888782 1112_ $$aEuropean Soft Matter Infrastructure 2020$$cJuelich$$d2020-11-19 - 2020-11-19$$wGermany
000888782 245__ $$aEffect of thermal gradient on aqueous alkali halide solutions
000888782 260__ $$c2020
000888782 3367_ $$033$$2EndNote$$aConference Paper
000888782 3367_ $$2BibTeX$$aINPROCEEDINGS
000888782 3367_ $$2DRIVER$$aconferenceObject
000888782 3367_ $$2ORCID$$aCONFERENCE_POSTER
000888782 3367_ $$2DataCite$$aOutput Types/Conference Poster
000888782 3367_ $$0PUB:(DE-HGF)24$$2PUB:(DE-HGF)$$aPoster$$bposter$$mposter$$s1607696935_8414$$xOther
000888782 520__ $$aThermal gradients induce a motion of solute molecules towards hot or cold regions. The motion of solutes in a solvent inducedby thermal gradient is termed as thermodiffusion. Soret coefficient ST is used to quantify the ratio of the established concentrationgradient to the thermal gradient. This phenomenon being very sensitive to the nature of solute-solvent interactions , hasgained a lot of interest in the recent years, especially in the context of biological interactions. Many solutions of interest inthermodiffusion or thermophoresis involve aqueous solutions with ions . To identify the underlying principles, we systematicallyinvestigate the thermodiffusion of aqueous alkali halide solutions. There have been previous reports where the behavior of certainaqueous halide salts under thermal gradient have been studied and for some salts a minimum being observed in the ST with saltconcentration . In this work, we measured the thermodiffusion behavior of salts (KCl, KBr, KI, NaI and LiI) in water in atemperature range of 15-45o C, with concentration being varied from 0.5-4 mol/kg by infrared thermal diffusion forced Rayleighscattering (IR-TDFRS). We find for the iodide salts a minimum of ST with concentration, while KCl and KBr show monotonousbehavior. We will discuss the temperature and concentration dependence of ST using the knowledge how different salts distortthe hydration layer. Furthermore, our systematic studies are discussed in context of recent simulations . These results willhelp to obtain a better understanding of the thermophoretic response of protein ligand systems typically studied in buffer solutionscontaining alkali halides to maintain the stability.
000888782 536__ $$0G:(DE-HGF)POF3-551$$a551 - Functional Macromolecules and Complexes (POF3-551)$$cPOF3-551$$fPOF III$$x0
000888782 7001_ $$0P:(DE-Juel1)131034$$aWiegand, Simone$$b1
000888782 8564_ $$uhttps://juser.fz-juelich.de/record/888782/files/poster.pdf$$yOpenAccess
000888782 909CO $$ooai:juser.fz-juelich.de:888782$$pdriver$$pVDB$$popen_access$$popenaire
000888782 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)179461$$aForschungszentrum Jülich$$b0$$kFZJ
000888782 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)131034$$aForschungszentrum Jülich$$b1$$kFZJ
000888782 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
000888782 9141_ $$y2020
000888782 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess
000888782 920__ $$lyes
000888782 9201_ $$0I:(DE-Juel1)IBI-4-20200312$$kIBI-4$$lBiomakromolekulare Systeme und Prozesse$$x0
000888782 980__ $$aposter
000888782 980__ $$aVDB
000888782 980__ $$aUNRESTRICTED
000888782 980__ $$aI:(DE-Juel1)IBI-4-20200312
000888782 9801_ $$aFullTexts