Print Email Facebook Twitter Determination of the shell growth direction during the formation of silica microcapsules by confocal fluorescence microscopy Title Determination of the shell growth direction during the formation of silica microcapsules by confocal fluorescence microscopy Author van Wijk, J. Salari, J.W.O. Meuldijk, J. Klumperman, B. Publication year 2015 Abstract 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. Subject Nano TechnologyMAS - Materials SolutionsTS - Technical SciencesMaterialsIndustrial InnovationSilicaSurface reactionsConfocal fluorescence microscopyMicro dropletsMicrocapsulesPickering emulsionsRadial directionSilica precursorsShells (structures) To reference this document use: http://resolver.tudelft.nl/uuid:cfd37e4c-2c35-4c75-b2f6-fdd6739809b0 DOI https://doi.org/10.1039/c5tb01232e TNO identifier 528632 Publisher Royal Society of Chemistry ISSN 2050-7518 Source Journal of Materials Chemistry B, 3 (39), 7745-7751 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.