Back to Search Start Over

Determination of the shell growth direction during the formation of silica microcapsules by confocal fluorescence microscopy

Authors :
J Jan Meuldijk
Bert Klumperman
Joris W. O. Salari
Judith van Wijk
Chemical Engineering and Chemistry
Source :
Journal of Materials Chemistry B, 3(39), 7745-7751. Royal Society of Chemistry, Journal of Materials Chemistry B, 39, 3, 7745-7751
Publication Year :
2015
Publisher :
Royal Society of Chemistry (RSC), 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.

Details

ISSN :
20507518 and 2050750X
Volume :
3
Database :
OpenAIRE
Journal :
Journal of Materials Chemistry B
Accession number :
edsair.doi.dedup.....89122bf719627183cab3c83057fd4d07
Full Text :
https://doi.org/10.1039/c5tb01232e