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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.1c01348
|2 doi
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|a eng
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| 100 |
1 |
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|a Fortes Martín, Rebeca
|e verfasserin
|4 aut
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| 245 |
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|a From Nanoparticle Heteroclusters to Filament Networks by Self-Assembly at the Water-Oil Interface of Reverse Microemulsions
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|c 2021
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 27.07.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Surface self-assembly of spherical nanoparticles of sizes below 10 nm into hierarchical heterostructures is under arising development despite the inherent difficulties of obtaining complex ordering patterns on a larger scale. Due to template-mediated interactions between oil-dispersible superparamagnetic nanoparticles (MNPs) and polyethylenimine-stabilized gold nanoparticles (Au(PEI)NPs) at the water-oil interface of microemulsions, complex nanostructured films can be formed. Characterization of the reverse microemulsion phase by UV-vis absorption revealed the formation of heteroclusters from Winsor type II phases (WPII) using Aerosol-OT (AOT) as the surfactant. SAXS measurements verify the mechanism of initial nanoparticle clustering in defined dimensions. XPS suggested an influence of AOT at the MNP surface. Further, cryo-SEM and TEM visualization demonstrated the elongation of the reverse microemulsions into cylindrical, wormlike structures, which subsequently build up larger nanoparticle superstructure arrangements. Such WPII phases are thus proven to be a new form of soft template, mediating the self-assembly of different nanoparticles in hierarchical network-like filaments over a substrate during solvent evaporation
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|a Journal Article
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|a Thünemann, Andreas F
|e verfasserin
|4 aut
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1 |
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|a Stockmann, Jörg M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Radnik, Jörg
|e verfasserin
|4 aut
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| 700 |
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|a Koetz, Joachim
|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 37(2021), 29 vom: 27. Juli, Seite 8876-8885
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|g volume:37
|g year:2021
|g number:29
|g day:27
|g month:07
|g pages:8876-8885
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|u http://dx.doi.org/10.1021/acs.langmuir.1c01348
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