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000010463 0247_ $$2pmid$$apmid:20433147
000010463 0247_ $$2DOI$$a10.1021/la100740e
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000010463 041__ $$aeng
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000010463 084__ $$2WoS$$aChemistry, Multidisciplinary
000010463 084__ $$2WoS$$aChemistry, Physical
000010463 084__ $$2WoS$$aMaterials Science, Multidisciplinary
000010463 1001_ $$0P:(DE-HGF)0$$aZhang, Z.$$b0
000010463 245__ $$aCharge reversal of the rodlike colloidal fd virus through surface chemical modification
000010463 260__ $$aWashington, DC$$bACS Publ.$$c2010
000010463 300__ $$a10593 - 10599
000010463 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article
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000010463 3367_ $$2DRIVER$$aarticle
000010463 440_0 $$04081$$aLangmuir$$v26$$x0743-7463$$y13
000010463 500__ $$aWe thank Pavlik Lettinga for stimulating discussions and Eric Grelet from CRPP for assistance with the characterization of the liquid-crystalline phase. Z.Z. also thanks Prof. Jan Vermant (K.U. Leuven) for his generous support during the preparation of this manuscript through EU-funded Nano-direct FP7-NMP-2007-SMALL-I project 213948.
000010463 520__ $$aThere is increasing interest in the use of viruses as model systems for fundamental research and as templates for nanomaterials. In this work, the rodlike fd virus was subjected to chemical modifications targeting different solvent-exposed functional groups in order to tune its surface properties, especially reversing the surface charge from negative to positive. The carboxyl groups of fd were coupled with different kinds of organic amines by carbodiimide chemistry, resulting in modified viruses that are positively charged over a wide range of pH. Care was taken to minimize intervirus cross linking, which often occurs because of such modifications. The surface amino groups were also grafted with poly(ethylene glycol) (PEG) end-functionalized with an active succinimidyl ester in order to introduce a steric stabilization effect. By combining charge reversal with PEG grafting, a reversible attraction between positively and negatively charged PEG-grafted fd viruses could be realized, which was tuned by the ionic strength of the solution. In addition, a charge-reversed fd virus forms only a pure nematic phase in contrast to the cholesteric phase of the wild type. These modified viruses might be used as model systems in soft condensed matter physics, for example, in the study of polyelectrolyte complexes or lyotropic liquid-crystalline phase behavior.
000010463 536__ $$0G:(DE-Juel1)FUEK410$$2G:(DE-HGF)$$aBiotechnologie (FUEK410)$$cFUEK410$$x0
000010463 536__ $$0G:(DE-HGF)POF2-450$$a450 - BioSoft (POF2-400)$$cPOF2-400$$fPOF II$$x1
000010463 536__ $$0G:(EU-Grant)213948$$aNANODIRECT - Toolbox for Directed and Controlled Self-Assembly of nano-Colloids (213948)$$c213948$$fFP7-NMP-2007-SMALL-1$$x2
000010463 588__ $$aDataset connected to Web of Science, Pubmed
000010463 650_2 $$2MeSH$$aElectrophoresis
000010463 650_2 $$2MeSH$$aElectrophoresis, Polyacrylamide Gel
000010463 650_2 $$2MeSH$$aEsters: chemistry
000010463 650_2 $$2MeSH$$aIsoelectric Point
000010463 650_2 $$2MeSH$$aModels, Chemical
000010463 650_2 $$2MeSH$$aNanostructures: chemistry
000010463 650_2 $$2MeSH$$aPolyethylene Glycols: chemistry
000010463 650_2 $$2MeSH$$aScattering, Radiation
000010463 650_2 $$2MeSH$$aSpectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
000010463 650_2 $$2MeSH$$aSurface Properties
000010463 650_2 $$2MeSH$$aViruses: chemistry
000010463 650_7 $$00$$2NLM Chemicals$$aEsters
000010463 650_7 $$00$$2NLM Chemicals$$aPolyethylene Glycols
000010463 650_7 $$2WoSType$$aJ
000010463 7001_ $$0P:(DE-HGF)0$$aBuitenhuis, J.$$b1
000010463 7001_ $$0P:(DE-HGF)0$$aCukkemane, A.$$b2
000010463 7001_ $$0P:(DE-Juel1)VDB13864$$aBrocker, M.$$b3$$uFZJ
000010463 7001_ $$0P:(DE-Juel1)128943$$aBott, M.$$b4$$uFZJ
000010463 7001_ $$0P:(DE-HGF)0$$aDhont, J. K. G.$$b5
000010463 773__ $$0PERI:(DE-600)2005937-1$$a10.1021/la100740e$$gVol. 26, p. 10593 - 10599$$p10593 - 10599$$q26<10593 - 10599$$tLangmuir$$v26$$x0743-7463$$y2010
000010463 8567_ $$uhttp://dx.doi.org/10.1021/la100740e
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