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Textured microcapsules through crystallization
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Wilson-Whitford, Samuel R., Jaggers, Ross W., Longbottom, Brooke W., Donald, Matt K., Clarkson, Guy J. and Bon, Stefan Antonius Franciscus (2021) Textured microcapsules through crystallization. ACS Applied Materials & Interfaces, 13 (4). pp. 5887-5894. doi:10.1021/acsami.0c22378 ISSN 1944-8244.
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Official URL: http://dx.doi.org/10.1021/acsami.0c22378
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 μm. 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.
| Item Type: | Journal Article | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Subjects: | T Technology > TP Chemical technology | ||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||||||
| Library of Congress Subject Headings (LCSH): | Drops, Microencapsulation, Capsules (Pharmacy), Crystallization | ||||||||
| Journal or Publication Title: | ACS Applied Materials & Interfaces | ||||||||
| Publisher: | American Chemical Society | ||||||||
| ISSN: | 1944-8244 | ||||||||
| Official Date: | 3 February 2021 | ||||||||
| Dates: |
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| Volume: | 13 | ||||||||
| Number: | 4 | ||||||||
| Page Range: | pp. 5887-5894 | ||||||||
| DOI: | 10.1021/acsami.0c22378 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Reuse Statement (publisher, data, author rights): | This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://dx.doi.org/10.1021/acsami.0c22378 | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| Date of first compliant deposit: | 30 March 2021 | ||||||||
| Date of first compliant Open Access: | 22 January 2022 |
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