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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.0c00156
|2 doi
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|a pubmed24n1354.xml
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|a (NLM)32202121
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Ma, Yingzhen
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Adsorption of Fatty Acid Molecules on Amine-Functionalized Silica Nanoparticles
|b Surface Organization and Foam Stability
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|c 2020
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| 336 |
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|a Text
|b txt
|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 13.08.2020
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|a Date Revised 29.03.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The crucial roles of the ionization state and counterion presence on the phase behavior of fatty acid in aqueous solutions are well-established. However, the effects of counterions on the adsorption and morphological state of fatty acid on nanoparticle surfaces are largely unknown. This knowledge gap exists due to the high complexity of the interactions between nanoparticles, counterions, and fatty acid molecules in aqueous solution. In this study, we use adsorption isotherms, small angle neutron scattering, and all-atom molecular dynamic simulations to investigate the effect of addition of ethanolamine as a counterion on the adsorption and self-assembly of decanoic acid onto aminopropyl-modified silica nanoparticles. We show that the morphology of the fatty acid assemblies on silica nanoparticles changes from discrete surface patches to a continuous bilayer by increasing concentration of the counterion. This morphological behavior of fatty acid on the oppositely charged nanoparticle surface alters the interfacial activity of the fatty acid-nanoparticle complex and thus governs the stability of the foam formed by the mixture. Our study provides new insights into the structure-property relationship of fatty acid-nanoparticle complexes and outlines a framework to program the stability of foams formed by mixtures of nanoparticles and amphiphiles
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|a Journal Article
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|a Research Support, U.S. Gov't, Non-P.H.S.
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| 700 |
1 |
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|a Wu, Yao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lee, Jin Gyun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a He, Lilin
|e verfasserin
|4 aut
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1 |
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|a Rother, Gernot
|e verfasserin
|4 aut
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1 |
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|a Fameau, Anne-Laure
|e verfasserin
|4 aut
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1 |
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|a Shelton, William A
|e verfasserin
|4 aut
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| 700 |
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|a Bharti, Bhuvnesh
|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 36(2020), 14 vom: 14. Apr., Seite 3703-3712
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:36
|g year:2020
|g number:14
|g day:14
|g month:04
|g pages:3703-3712
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|u http://dx.doi.org/10.1021/acs.langmuir.0c00156
|3 Volltext
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