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000015470 0247_ $$2DOI$$a10.1021/bm2000023
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000015470 084__ $$2WoS$$aBiochemistry & Molecular Biology
000015470 084__ $$2WoS$$aChemistry, Organic
000015470 084__ $$2WoS$$aPolymer Science
000015470 1001_ $$0P:(DE-Juel1)VDB76355$$aBlanco, P.$$b0$$uFZJ
000015470 245__ $$aThermal Diffusion of a Stiff Rod-Like Mutant Y21M fd-Virus
000015470 260__ $$aColumbus, Ohio$$bAmerican Chemical Soc.$$c2011
000015470 300__ $$a1602 - 1609
000015470 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article
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000015470 440_0 $$08221$$aBiomacromolecules$$v12$$x1525-7797
000015470 500__ $$aWe appreciate many fruitful discussions with Johan Buitenhuis, Jan Dhont, and Gerhard Nagele. We thank the Department of Education, Universities and Investigation of Basque Government for the grant BFI08188.0. Financial support due to the Deutsche Forschungsgemeinschaft grant Wi 1684 is gratefully acknowledged.
000015470 520__ $$aWe investigated the thermal diffusion phenomena of a rodlike mutant filamentous fd-Y21M virus in the isotropic phase by means of an improved infrared thermal-diffusion-forced Rayleigh scattering (IR-TDFRS) setup optimized for measurements of slowly diffusing systems. Because this is the first thermal diffusion study of a stiff anisotropic solute, we investigate the influence of the shape anisotropy on the thermal diffusion behavior. The influence of temperature, fd-Y21M concentration, and ionic strength in relation with the thermodiffusion properties is discussed. We characterize and eliminate the effect of these parameters on the absolute diffusion of the rods and show that diffusion determines the behavior of the Soret coefficient because the thermal diffusion coefficient is constant in the investigated regime. Our results indicate that for the thermal diffusion behavior structural changes of the surrounding water are more important than structural changes between the charged macroions. In the investigated temperature and concentration range, the fd-Y21M virus is thermophobic for the low salt content, whereas the solutions with the high salt content change from thermophobic to thermophilic behavior with decreasing temperature. A comparison with recent measurements of other charged soft and biological matter systems shows that the shape anisotropy of the fd-virus becomes not visible in the results.
000015470 536__ $$0G:(DE-Juel1)FUEK505$$2G:(DE-HGF)$$aBioSoft: Makromolekulare Systeme und biologische Informationsverarbeitung$$cP45$$x0
000015470 588__ $$aDataset connected to Web of Science, Pubmed
000015470 650_2 $$2MeSH$$aGenes, Viral
000015470 650_2 $$2MeSH$$aMutation
000015470 650_2 $$2MeSH$$aThermodynamics
000015470 650_2 $$2MeSH$$aViruses: genetics
000015470 650_7 $$2WoSType$$aJ
000015470 7001_ $$0P:(DE-Juel1)130773$$aKriegs, H.$$b1$$uFZJ
000015470 7001_ $$0P:(DE-Juel1)130797$$aLettinga, M.P.$$b2$$uFZJ
000015470 7001_ $$0P:(DE-Juel1)130719$$aHolmqvist, P.$$b3$$uFZJ
000015470 7001_ $$0P:(DE-Juel1)131034$$aWiegand, S.$$b4$$uFZJ
000015470 773__ $$0PERI:(DE-600)2006291-6$$a10.1021/bm2000023$$gVol. 12, p. 1602 - 1609$$p1602 - 1609$$q12<1602 - 1609$$tBiomacromolecules$$v12$$x1525-7797$$y2011
000015470 8567_ $$uhttp://dx.doi.org/10.1021/bm2000023
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000015470 9131_ $$0G:(DE-Juel1)FUEK505$$aDE-HGF$$bSchlüsseltechnologien$$kP45$$lBiologische Informationsverarbeitung$$vBioSoft: Makromolekulare Systeme und biologische Informationsverarbeitung$$x0
000015470 9132_ $$0G:(DE-HGF)POF3-551$$1G:(DE-HGF)POF3-550$$2G:(DE-HGF)POF3-500$$aDE-HGF$$bKey Technologies$$lBioSoft  Fundamentals for future Technologies in the fields of Soft Matter and Life Sciences$$vFunctional Macromolecules and Complexes$$x0
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