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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1021/la9046726
|2 doi
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|a pubmed24n0650.xml
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|a eng
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| 100 |
1 |
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|a Bernardes, Juliana S
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Morphology and self-arraying of SDS and DTAB dried on mica surface
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| 264 |
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|c 2010
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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
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|2 rdacarrier
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|a Date Completed 08.09.2010
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|a Date Revised 26.05.2010
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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 Dewetting phenomena produce interesting patterns that may impart new properties to solid surfaces. Sodium dodecyl sulfate (SDS) and dodecyltrimethylammonium bromide (DTAB) aqueous solutions, dried on mica surfaces under different drying conditions, undergo dewetting events forming structured deposits that were imaged by scanning electron microscopy (SEM), atomic force (AFM) and Kelvin force microscopy (KFM). Dry SDS, in most situations, displays long branched stripes formed due to fingering instability, while DTAB undergoes stick-slip motion forming patterns of parallel continuous or split stripes. In both systems, independently of drying conditions, surfactants pack forming lamellar structures, but with different orientations: SDS lamellae are aligned parallel to the substrate whereas DTAB lamellae are normal to the mica plane. Electric potential maps of SDS obtained by KFM show well-defined electrostatic patterns: surfactant layers deposited on mica are overall negative with a larger excess of negative charge in the interlamellar space than in the lamellar faces
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| 650 |
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|a Journal Article
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1 |
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|a Rezende, Camila A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Galembeck, Fernando
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 26(2010), 11 vom: 01. Juni, Seite 7824-32
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:26
|g year:2010
|g number:11
|g day:01
|g month:06
|g pages:7824-32
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| 856 |
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|u http://dx.doi.org/10.1021/la9046726
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