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231224s2011 xx |||||o 00| ||eng c |
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7 |
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|a 10.1021/la200428r
|2 doi
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|a eng
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| 100 |
1 |
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|a Fan, Heng
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Amphiphilic silica nanoparticles at the decane-water interface
|b insights from atomistic simulations
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| 264 |
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|c 2011
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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 11.08.2011
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|a Date Revised 26.04.2011
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The properties of 3 nm-diameter silica nanoparticles with different surface chemistry were systematically investigated at the decane-water interface using molecular dynamics simulations. Our results show that the decane-water interfacial tension is not much influenced by the presence of the nanoparticles. The three-phase contact angle increases with nanoparticle surface hydrophobicity. Contact angles observed for the nanoparticles at 300 and at 350 K differ very little. The contact angle of the nanoparticle with randomly dispersed hydrophobic groups is smaller than that observed in Janus nanoparticles of equal overall surface chemistry composition. The energy necessary to desorb Janus nanoparticles from the interface is usually higher than that required to desorb the corresponding homogeneous nanoparticles. Desorption from the interface into the aqueous phase is preferred over that into the organic phase for all except one of the nanoparticles considered. Structural and dynamic properties including nanoparticle rotational relaxation, solvent density profiles, and solvent residence autocorrelation functions near the nanoparticles are also presented. The data are useful for designing Pickering emulsions
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| 650 |
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|a Journal Article
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1 |
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|a Resasco, Daniel E
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Striolo, Alberto
|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 27(2011), 9 vom: 03. Mai, Seite 5264-74
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:27
|g year:2011
|g number:9
|g day:03
|g month:05
|g pages:5264-74
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|u http://dx.doi.org/10.1021/la200428r
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