Determination of the shell growth direction during the formation of silica microcapsules by confocal fluorescence microscopy
article
A novel procedure was developed to determine the direction of silica growth during the formation of a silica shell around aqueous microdroplets in water-in-oil Pickering emulsions. Two fluorescently labeled silica precursors were added consecutively and the resulting microcapsules were visualized via confocal fluorescence microscopy, allowing the conclusion that the locus of reaction moves in the positive radial direction, i.e. from the inside to the outside. A consequence of the growth direction is that water has to diffuse through the shell to participate in the reaction on the outer surface of the shell. This journal is cop. The Royal Society of Chemistry.
Topics
TNO Identifier
528632
ISSN
20507518
Source
Journal of Materials Chemistry B, 3(39), pp. 7745-7751.
Publisher
Royal Society of Chemistry
Pages
7745-7751
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