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|a 10.1021/acs.langmuir.4c00976
|2 doi
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|a eng
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| 100 |
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|a Li, Yunxing
|e verfasserin
|4 aut
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|a One-Step Formation of Pickering Double Emulsion Costabilized by Hydrophobic Silica Nanoparticles and Sodium Alginate
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|c 2024
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|a Text
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|a ƒaComputermedien
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|a Date Revised 14.07.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Pickering double emulsions exhibit higher stability and biocompatibility compared with surfactant-stabilized double emulsions. However, tailored synthesis of particle stabilizers with appropriate wettability is time consuming and complicated and usually limits their large-scale adoption. Using binary stabilizers may be a simple and scalable strategy for Pickering double emulsion formation. Herein, commercially available hydrophobic silica nanoparticles (SNPs) and sodium alginate (SA) as binary stabilizers are used to prepare O/W/O Pickering double emulsions in one-step emulsification. The influence of system composition on double emulsion preparation is identified by optical microscopy, confocal laser scanning microscopy, and interfacial tension and water contact angle analyses. The formation of the O/W/O Pickering double emulsion depends critically on the aqueous phase viscosity and occurrence of emulsion inversion. Both hydrophobic SNPs and SA adsorb at the droplet surface to provide a steric barrier, while SA also reduces interfacial tension and increases aqueous phase viscosity, giving double emulsion long-term stability. Their microstructure and stability are controlled by adjusting the SA concentration, water-oil volume ratio, concentration and wettability of the particle stabilizer, and oil type. As a demonstration, the middle layer of the as-prepared O/W/O Pickering double emulsions can be cross-linked in situ with calcium ions to produce calcium alginate porous microspheres. We believe that our strategy for double emulsion formation holds great potential for practical applications in food, cosmetics, or pharmaceuticals
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|a Journal Article
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|a Li, Jiaming
|e verfasserin
|4 aut
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|a Cai, Zhiqing
|e verfasserin
|4 aut
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|a Sun, Yajuan
|e verfasserin
|4 aut
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|a Jiang, Hang
|e verfasserin
|4 aut
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|a Guan, Xin
|e verfasserin
|4 aut
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| 700 |
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|a Ngai, To
|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 40(2024), 27 vom: 09. Juli, Seite 13903-13911
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|g volume:40
|g year:2024
|g number:27
|g day:09
|g month:07
|g pages:13903-13911
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|u http://dx.doi.org/10.1021/acs.langmuir.4c00976
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