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001     851478
005     20210129234919.0
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024 7 _ |a 1520-5827
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100 1 _ |a Napso, Sofia
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245 _ _ |a Structural Analysis of Cellulose-Coated Oil-in-Water Emulsions Fabricated from Molecular Solution
260 _ _ |a Washington, DC
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520 _ _ |a Natural cellulose has been used as a coating to stabilize oil-in-water (o/w) emulsions by exploiting the amphiphilic character of the cellulose chains molecularly dissolved in the ionic liquid 1-ethyl-3-methylimidazolium acetate. Its cellulose coating exhibits a continuous amorphous structure which differs significantly from the cellulose particle stabilization used in Pickering emulsions. The structure of these cellulose-coated o/w emulsion particles, in particular the cellulose coating shell characteristics (thickness, porosity, and composition), is studied by using a combination of direct imaging methods such as cryogenic electron microscopy and fluorescence microscopy with small-angle neutron scattering measurements. This work suggests a unique multicompartment structure of the emulsion particles: an oil core, surrounded by an inner shell composed of a porous cellulose gel, encapsulated by a dense outer cellulose shell, a few nanometers in thickness. The thickness of the inner cellulose shell varies significantly. The nanoscale emulsion droplets exhibit a thickness of 10 ± 3 nm, whereas the larger micron-sized droplets exhibit a thicker inner cellulose shell of 500–750 nm. It is also inferred that the cellulose shells contain water rather than oil.
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650 1 7 |a Polymers, Soft Nano Particles and Proteins
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693 _ _ |a Forschungs-Neutronenquelle Heinz Maier-Leibnitz
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700 1 _ |a Rein, Dmitry M.
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700 1 _ |a Fu, Zhendong
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700 1 _ |a Radulescu, Aurel
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700 1 _ |a Cohen, Yachin
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773 _ _ |a 10.1021/acs.langmuir.8b01325
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