001023026 001__ 1023026 001023026 005__ 20240215202943.0 001023026 037__ $$aFZJ-2024-01609 001023026 041__ $$aEnglish 001023026 1001_ $$0P:(DE-Juel1)131034$$aWiegand, Simone$$b0$$eCorresponding author$$ufzj 001023026 1112_ $$aSeminar series: Sustainable Bioeconomy$$cJülich$$wGermany 001023026 245__ $$aThermophoresis: a sensor for solute-water interactions$$f2024-02-13 - 001023026 260__ $$c2024 001023026 3367_ $$033$$2EndNote$$aConference Paper 001023026 3367_ $$2DataCite$$aOther 001023026 3367_ $$2BibTeX$$aINPROCEEDINGS 001023026 3367_ $$2ORCID$$aLECTURE_SPEECH 001023026 3367_ $$0PUB:(DE-HGF)31$$2PUB:(DE-HGF)$$aTalk (non-conference)$$btalk$$mtalk$$s1707981371_4578$$xPlenary/Keynote 001023026 3367_ $$2DINI$$aOther 001023026 520__ $$aThermophoresis or Thermodiffusion describes the mass transport in a temperature gradient. It can be used for the characterization of protein-ligand binding reactions, in devices for energy conversion and is discussed in the context of the origin-of-life question. In our studies we focus on biological and biocompatible systems. We find that the thermodiffusion in aqueous systems is dominated by contributions from heat of transfer, hydrogen bond and ionic interactions. However, the separation of these effects is often difficult, especially in case of biological systems where a systematic exclusion of contributions may not be feasible. We find that the thermodiffusion of non-ionic solutes in water is dominated by the capability of the solute to form hydrogen bonds. For these solutes we find a clear correlation with their hydrophilicity. For ionic solutes, even for simple salts the situation is more complicated. Hydrogen bonding interactions are less dominant, but we find partial agreement with the Hofmeister series, suggesting that thermodiffusion is sensitive to ion-specific effects. Beside the deficiencies of the theoretical analysis, we will also elucidate the shortcomings of the available experimental methods handling biological multicomponent systems. 001023026 536__ $$0G:(DE-HGF)POF4-5241$$a5241 - Molecular Information Processing in Cellular Systems (POF4-524)$$cPOF4-524$$fPOF IV$$x0 001023026 909CO $$ooai:juser.fz-juelich.de:1023026$$pVDB 001023026 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)131034$$aForschungszentrum Jülich$$b0$$kFZJ 001023026 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)POF4-5241$$aDE-HGF$$bKey Technologies$$lNatural, Artificial and Cognitive Information Processing$$vMolecular and Cellular Information Processing$$x0 001023026 9141_ $$y2024 001023026 920__ $$lyes 001023026 9201_ $$0I:(DE-Juel1)IBI-4-20200312$$kIBI-4$$lBiomakromolekulare Systeme und Prozesse$$x0 001023026 980__ $$atalk 001023026 980__ $$aVDB 001023026 980__ $$aI:(DE-Juel1)IBI-4-20200312 001023026 980__ $$aUNRESTRICTED