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ACS Appl Mater Interfaces


Title:Textured Microcapsules through Crystallization
Author(s):Wilson-Whitford SR; Jaggers RW; Longbottom BW; Donald MK; Clarkson GJ; Bon SAF;
Address:"Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom. Department of Chemical and Biomolecular Engineering, Lehigh University, 19 Memorial Drive W., Bethlehem, Pennsylvania 18015-3027, United States. Department of Chemistry, University of Cambridge, Lensfied Road, Cambridge CB2 1EW, United Kingdom"
Journal Title:ACS Appl Mater Interfaces
Year:2021
Volume:20210122
Issue:4
Page Number:5887 - 5894
DOI: 10.1021/acsami.0c22378
ISSN/ISBN:1944-8252 (Electronic) 1944-8244 (Linking)
Abstract:"This work demonstrates the fabrication of surface-textured microcapsules formed from emulsion droplets, which are stabilized by an interlocking mesh of needle-like crystals. Crystals of the small-organic-compound decane-1,10-bis(cyclohexyl carbamate) are formed within the geometric confinement of the droplets, through precipitation from a binary-solvent-dispersed phase. This binary mixture consists of a volatile solvent and nonvolatile carrier oil. Crystallization is facilitated upon supersaturation due to evaporation of the volatile solvent. Microcapsule diameter can be easily tuned using microfluidics. This approach also proves to be scalable when using conventional mixers, yielding spikey microcapsules with diameters in the range of 10-50 mum. It is highlighted that the capsule shape can be molded and arrested by jamming using recrystallization in geometric confinement. Moreover, it is shown that these textured microcapsules show a promising enhanced deposition onto a range of fabric fibers"
Keywords:crystallization deposition droplets interfacial microcapsules roughness;
Notes:"PubMed-not-MEDLINEWilson-Whitford, Samuel R Jaggers, Ross W Longbottom, Brooke W Donald, Matt K Clarkson, Guy J Bon, Stefan A F eng 2021/01/23 ACS Appl Mater Interfaces. 2021 Feb 3; 13(4):5887-5894. doi: 10.1021/acsami.0c22378. Epub 2021 Jan 22"

 
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