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231223s2009 xx |||||o 00| ||eng c |
| 024 |
7 |
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|a 10.1021/la901244v
|2 doi
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|a pubmed24n0638.xml
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|a eng
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| 100 |
1 |
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|a Petit, Laure
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Size dependence of tracer diffusion in a laponite colloidal gel
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1 |
|c 2009
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 25.01.2010
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|a Date Revised 13.10.2009
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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| 520 |
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|a Using a fluorescence recovery after photobleaching (FRAP) technique, we present measurements of probe diffusion in a colloidal glass-a Laponite suspension. By varying the probe size over 2 orders of magnitude, as well as the concentration of the colloidal glass, we evidence and quantify the deviations of the probe diffusivity from the bulk Stokes-Einstein expectations. These experiments suggest that the probe diffusion in the dynamically arrested Laponite structure is mainly controlled by the ratio between the probe size and the typical clay platelets interdistance. Comparing with a simple hindered diffusion mechanism, the reduction of tracer diffusion is discussed in terms of the hydrodynamic interaction of the probe with the Laponite structure. Finally, these results can be interpreted in terms of a scale dependent viscosity of the colloidal glass
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| 650 |
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|a Journal Article
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1 |
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|a Barentin, Catherine
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Colombani, Jean
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ybert, Christophe
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bocquet, Lydéric
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 25(2009), 20 vom: 20. Okt., Seite 12048-55
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|x 1520-5827
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|g volume:25
|g year:2009
|g number:20
|g day:20
|g month:10
|g pages:12048-55
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|3 Volltext
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