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231223s2009 xx |||||o 00| ||eng c |
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|a 10.1021/la8029903
|2 doi
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|a pubmed24n0620.xml
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|a (DE-627)NLM185957412
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|a (NLM)19166277
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Zhang, Zhenkun
|e verfasserin
|4 aut
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|a Reversible gelation of rod-like viruses grafted with thermoresponsive polymers
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|c 2009
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 31.03.2009
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|a Date Revised 20.11.2014
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|a published: Print
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|a Citation Status MEDLINE
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|a The synthesis and selected macroscopic properties of a new model system consisting of poly(N-isopropylacrylamide) (PNIPAM)-coated rod-like fd virus particles are presented. The sticky rod-like colloids can be used to study effect of particle shape on gelation transition, the structure and viscoelasticity of isotropic and nematic gels, and to make both open isotropic as well as ordered nematic particle networks. This model system of rod-like colloids, for which the strength of attraction between the particles is tunable, is obtained by chemically grafting highly monodisperse rod-like fd virus particles with thermoresponsive polymers, e.g. PNIPAM. At room temperature, suspensions of the resulting hybrid PNIPAM-fd are fluid sols which are in isotropic or liquid crystalline phases, depending on the particle concentration and ionic strength. During heating/cooling, the suspensions change reversibly between sol and gel state near a critical temperature of approximately 32 degrees C, close to the lower critical solution temperature of free PNIPAM. The so-called nematic gel, which exhibits a cholesteric feature, can therefore be easily obtained. The gelation behavior of PNIPAM-fd system and the structure of the nematic gel have been characterized by rheology, optical microscopy and small-angle X-ray scattering
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Acrylamides
|2 NLM
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|a Acrylic Resins
|2 NLM
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|a Gels
|2 NLM
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|a Polymers
|2 NLM
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|a poly-N-isopropylacrylamide
|2 NLM
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|a 25189-55-3
|2 NLM
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|a Gelatin
|2 NLM
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|a 9000-70-8
|2 NLM
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|a Krishna, Naveen
|e verfasserin
|4 aut
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|a Lettinga, M Paul
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Vermant, Jan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Grelet, Eric
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 25(2009), 4 vom: 17. Feb., Seite 2437-42
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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|g volume:25
|g year:2009
|g number:4
|g day:17
|g month:02
|g pages:2437-42
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|u http://dx.doi.org/10.1021/la8029903
|3 Volltext
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