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Article: Enhanced encapsulation of actives in self-sealing microcapsules by precipitation in capsule shells

TitleEnhanced encapsulation of actives in self-sealing microcapsules by precipitation in capsule shells
Authors
Issue Date2011
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/langmuir
Citation
Langmuir, 2011, v. 27 n. 23, p. 13988-13991 How to Cite?
AbstractMicrocapsules with core-shell structures are excellent vehicles for the encapsulation of active ingredients; however, the actives often leak out of these structures over time, without observable damage to them. We present a novel approach to enhancing the encapsulation of active ingredients inside microcapsules. We use two components that can form solid precipitates upon mixing and add one each to the microcapsule core and to the continuous phase. The components diffuse through the shell in the same manner as the actives, but upon meeting, they precipitate to form solid particles within the shell; this significantly reduces leakage through the shell of the microcapsules. We show that the reduction in the leakage of actives is due to the blockage of channels or pores that exist in the shell of the capsules by the solid precipitates. © 2011 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/157159
ISSN
2015 Impact Factor: 3.993
2015 SCImago Journal Rankings: 1.750
ISI Accession Number ID
Funding AgencyGrant Number
BASF
NSFDMR-1006546
Harvard MRSECDMR-0820484
National Science Foundation of China20676068
50925309
21105011
University of Hong Kong201101159009
Scientific Research Foundation of Southeast UniversitySeucx201104
Funding Information:

This work was supported by BASF, the NSF (DMR-1006546), the Harvard MRSEC (DMR-0820484), the National Science Foundation of China (grant nos. 20676068, 50925309, and 21105011), the Seed Funding Programme for Basic Research from the University of Hong Kong (201101159009), and the Scientific Research Foundation of Southeast University (grant no. Seucx201104).

References

 

DC FieldValueLanguage
dc.contributor.authorZhao, Yen_US
dc.contributor.authorShum, HCen_US
dc.contributor.authorAdams, LLAen_US
dc.contributor.authorSun, Ben_US
dc.contributor.authorHoltze, Cen_US
dc.contributor.authorGu, Zen_US
dc.contributor.authorWeitz, DAen_US
dc.date.accessioned2012-08-08T08:45:35Z-
dc.date.available2012-08-08T08:45:35Z-
dc.date.issued2011en_US
dc.identifier.citationLangmuir, 2011, v. 27 n. 23, p. 13988-13991en_US
dc.identifier.issn0743-7463en_US
dc.identifier.urihttp://hdl.handle.net/10722/157159-
dc.description.abstractMicrocapsules with core-shell structures are excellent vehicles for the encapsulation of active ingredients; however, the actives often leak out of these structures over time, without observable damage to them. We present a novel approach to enhancing the encapsulation of active ingredients inside microcapsules. We use two components that can form solid precipitates upon mixing and add one each to the microcapsule core and to the continuous phase. The components diffuse through the shell in the same manner as the actives, but upon meeting, they precipitate to form solid particles within the shell; this significantly reduces leakage through the shell of the microcapsules. We show that the reduction in the leakage of actives is due to the blockage of channels or pores that exist in the shell of the capsules by the solid precipitates. © 2011 American Chemical Society.en_US
dc.languageengen_US
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/langmuiren_US
dc.relation.ispartofLangmuiren_US
dc.subject.meshCapsules - Chemistryen_US
dc.subject.meshChemical Precipitationen_US
dc.subject.meshParticle Sizeen_US
dc.subject.meshSurface Propertiesen_US
dc.titleEnhanced encapsulation of actives in self-sealing microcapsules by precipitation in capsule shellsen_US
dc.typeArticleen_US
dc.identifier.emailShum, HC:ashum@hku.hken_US
dc.identifier.authorityShum, HC=rp01439en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1021/la2034774en_US
dc.identifier.pmid22004475en_US
dc.identifier.scopuseid_2-s2.0-82455181933en_US
dc.identifier.hkuros207258-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-82455181933&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume27en_US
dc.identifier.issue23en_US
dc.identifier.spage13988en_US
dc.identifier.epage13991en_US
dc.identifier.isiWOS:000297427500006-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridZhao, Y=23986561100en_US
dc.identifier.scopusauthoridShum, HC=23976513800en_US
dc.identifier.scopusauthoridAdams, LLA=53363112900en_US
dc.identifier.scopusauthoridSun, B=17436079000en_US
dc.identifier.scopusauthoridHoltze, C=9244500700en_US
dc.identifier.scopusauthoridGu, Z=7401760400en_US
dc.identifier.scopusauthoridWeitz, DA=7006798731en_US

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