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231225s2017 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.7b02976
|2 doi
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|a pubmed24n0924.xml
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|a (NLM)29072075
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|a DE-627
|b ger
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Zhang, Yongmin
|e verfasserin
|4 aut
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| 245 |
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|a CO2 and Redox Dual Responsive Pickering Emulsion
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|c 2017
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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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|2 rdacarrier
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| 500 |
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|a Date Completed 31.07.2018
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|a Date Revised 31.07.2018
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Herein, we described for the first time a CO2 and redox dual responsive paraffin oil-in-water Pickering emulsion stabilized by the modified silica nanoparticles with Se-containing tertiary amine, SeTA, in which the tertiary amine serves as a CO2-sensitive group, and the Se atom serves as a redox-sensitive center. The Pickering emulsion can be reversibly switched between stable and unstable states by bubbling CO2 and N2 in the reduced state, or with the addition of H2O2 and Na2SO3 in the absence of CO2, because of the adsorption and desorption of SeTA on the silica surface. The former is mainly attributed to a CO2-controllable electrostatic attraction, resulting from the transition of molecules between cationic and nonionic states; whereas, the latter is ascribed to a redox-tunable hydrogen bonding, originating from the transition of molecules between selenide and selenoxide. However, in the presence of CO2, redox can only induce a change in the droplet size, not demulsification. These interesting and unique multiresponsive behaviors endow the Pickering emulsion with a capacity for intelligent control of emulsification and demulsification, as well as the droplet size, which may be an asset for a myriad of technological applications in biomedicine, microfluidics, drug delivery, and cosmetics
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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1 |
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|a Guo, Shuang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ren, Xiaofei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Xuefeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fang, Yun
|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 33(2017), 45 vom: 14. Nov., Seite 12973-12981
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:33
|g year:2017
|g number:45
|g day:14
|g month:11
|g pages:12973-12981
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| 856 |
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|u http://dx.doi.org/10.1021/acs.langmuir.7b02976
|3 Volltext
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