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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.6b01646
|2 doi
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|a eng
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| 100 |
1 |
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|a Hernandez-Pascacio, Jorge
|e verfasserin
|4 aut
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| 245 |
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|a Complex Behavior of Aqueous α-Cyclodextrin Solutions. Interfacial Morphologies Resulting from Bulk Aggregation
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|c 2016
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|a Text
|b txt
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|a ƒaComputermedien
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|a Date Completed 30.05.2018
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|a Date Revised 30.05.2018
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The spontaneous aggregation of α-cyclodextrin (α-CD) molecules in the bulk aqueous solution and the interactions of the resulting aggregates at the liquid/air interface have been studied at 283 K using a battery of techniques: transmission electron microscopy, dynamic light scattering, dynamic surface tensiometry, Brewster angle microscopy, neutron reflectometry, and ellipsometry. We show that α-CD molecules spontaneously form aggregates in the bulk that grow in size with time. These aggregates adsorb to the liquid/air interface with their size in the bulk determining the adsorption rate. The material that reaches the interface coalesces laterally to form two-dimensional domains on the micrometer scale with a layer thickness on the nanometer scale. These processes are affected by the ages of both the bulk and the interface. The interfacial layer formed is not in fast dynamic equilibrium with the subphase as the resulting morphology is locked in a kinetically trapped state. These results reveal a surprising complexity of the parallel physical processes taking place in the bulk and at the interface of what might have seemed initially like a simple system
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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1 |
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|a Piñeiro, Ángel
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ruso, Juan M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hassan, Natalia
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Campbell, Richard A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Campos-Terán, José
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Costas, Miguel
|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 32(2016), 26 vom: 05. Juli, Seite 6682-90
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:32
|g year:2016
|g number:26
|g day:05
|g month:07
|g pages:6682-90
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|u http://dx.doi.org/10.1021/acs.langmuir.6b01646
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