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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1021/la202834n
|2 doi
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|a DE-627
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|a eng
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1 |
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|a Babenko, Denis I
|e verfasserin
|4 aut
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| 245 |
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|a 2D "soap"-assembly of nanoparticles via colloid-induced condensation of mixed Langmuir monolayers of fatty surfactants
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|c 2012
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 25.04.2012
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|a Date Revised 16.08.2012
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|a published: Print-Electronic
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|a ErratumIn: Langmuir. 2012 Jun 12;28(23):8822 Ivanov, Vladimir K [corrected to Ivanov, Vladimir A]
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|a Citation Status PubMed-not-MEDLINE
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|a We describe a new type of colloidal 2D gels formed in mixed Langmuir monolayers of stearic acid and octadecylamine on a surface of gold hydrosol. The adsorption of gold nanoparticles on the mixed monolayer led to an increase of interactions between oppositely charged surfactants giving a "soap" of mixed fatty salt. The observed effect is equivalent to a virtual "cooling" of floating monolayer, which undergoes rapid condensation on a surface of aqueous colloid. The consequent shrinking and rearrangement of the monolayer resulted in aggregation of nanoparticles into colloidal 2D "soap"-gels, which represented arrested colloidal phases within nonadsorbing organic medium. When sequentially deposited onto solids by Langmuir-Blodgett technique, the 2D "soap"-gels separated into organic and colloidal phases and gave dendrite-like bilateral organic crystallites coated with gold nanoparticles. The reported colloidal "soap"-assembly can offer a new opportunity to design 2D colloidal systems of widely variable chemistry and structures
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|a Journal Article
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1 |
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|a Ezhov, Alexander A
|e verfasserin
|4 aut
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1 |
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|a Turygin, Dmitry S
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ivanov, Vladimir A
|e verfasserin
|4 aut
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1 |
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|a Ivanov, Vladimir K
|e verfasserin
|4 aut
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|a Arslanov, Vladimir V
|e verfasserin
|4 aut
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| 700 |
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|a Kalinina, Maria A
|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 28(2012), 1 vom: 10. Jan., Seite 125-33
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:28
|g year:2012
|g number:1
|g day:10
|g month:01
|g pages:125-33
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|u http://dx.doi.org/10.1021/la202834n
|3 Volltext
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