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Article: Self-Assembly of TiO2 Nanofiber-Based Microcapsules by Spontaneously Evolved Multiple Emulsions

TitleSelf-Assembly of TiO2 Nanofiber-Based Microcapsules by Spontaneously Evolved Multiple Emulsions
Authors
KeywordsDrops
Emulsions
Encapsulation
Nanofibers
Titanium dioxide
Issue Date2018
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/langmuir
Citation
Langmuir, 2018, v. 34 n. 30, p. 8785-8791 How to Cite?
AbstractWe demonstrate hierarchical nest/crust-like colloidosomes composed of interlocked titanium dioxide (TiO2) nanofibers using spontaneously evolved n-butanol/water/n-butanol (B/W/B) emulsions. We find two mechanisms to produce colloidosomes from B/W/B droplets due to their mutual solubility and dewetting discrepancy. Porous TiO2 colloidal capsules with loosely intertwined nanofibers were obtained after the dewetting of nanofiber-coated B/W/B droplets, while crustlike TiO2 colloidosomes with a thin shell and large hollow interior are developed from amphiphilic polymer-stabilized B/W/B droplets. We further investigate the effect of experimental parameters, including the initial droplet size, the nanofiber concentration, and the water/butanol ratios in butanol phases, on the droplet-to-colloidosome evolution and resultant morphology of colloidosomes. Our simple and versatile approach for fabricating TiO2 colloidosomes can be extended to a range of irregular colloidal particles, and the products have great potential to act as host systems in electrochemical catalysis, photothermal therapy, or filtration materials.
Persistent Identifierhttp://hdl.handle.net/10722/273903
ISSN
2017 Impact Factor: 3.789
2015 SCImago Journal Rankings: 1.750

 

DC FieldValueLanguage
dc.contributor.authorLEI, L-
dc.contributor.authorKong, T-
dc.contributor.authorZhu, P-
dc.contributor.authorKANG, Z-
dc.contributor.authorTian, X-
dc.contributor.authorWang, L-
dc.date.accessioned2019-08-18T14:50:59Z-
dc.date.available2019-08-18T14:50:59Z-
dc.date.issued2018-
dc.identifier.citationLangmuir, 2018, v. 34 n. 30, p. 8785-8791-
dc.identifier.issn0743-7463-
dc.identifier.urihttp://hdl.handle.net/10722/273903-
dc.description.abstractWe demonstrate hierarchical nest/crust-like colloidosomes composed of interlocked titanium dioxide (TiO2) nanofibers using spontaneously evolved n-butanol/water/n-butanol (B/W/B) emulsions. We find two mechanisms to produce colloidosomes from B/W/B droplets due to their mutual solubility and dewetting discrepancy. Porous TiO2 colloidal capsules with loosely intertwined nanofibers were obtained after the dewetting of nanofiber-coated B/W/B droplets, while crustlike TiO2 colloidosomes with a thin shell and large hollow interior are developed from amphiphilic polymer-stabilized B/W/B droplets. We further investigate the effect of experimental parameters, including the initial droplet size, the nanofiber concentration, and the water/butanol ratios in butanol phases, on the droplet-to-colloidosome evolution and resultant morphology of colloidosomes. Our simple and versatile approach for fabricating TiO2 colloidosomes can be extended to a range of irregular colloidal particles, and the products have great potential to act as host systems in electrochemical catalysis, photothermal therapy, or filtration materials.-
dc.languageeng-
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/langmuir-
dc.relation.ispartofLangmuir-
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in [JournalTitle], copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see http://pubs.acs.org/page/policy/articlesonrequest/index.html].-
dc.subjectDrops-
dc.subjectEmulsions-
dc.subjectEncapsulation-
dc.subjectNanofibers-
dc.subjectTitanium dioxide-
dc.titleSelf-Assembly of TiO2 Nanofiber-Based Microcapsules by Spontaneously Evolved Multiple Emulsions-
dc.typeArticle-
dc.identifier.emailZhu, P: pazhu@hku.hk-
dc.identifier.emailTian, X: tianxw@hku.hk-
dc.identifier.emailWang, L: lqwang@hku.hk-
dc.identifier.authorityWang, L=rp00184-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/acs.langmuir.8b01472-
dc.identifier.pmid29983067-
dc.identifier.scopuseid_2-s2.0-85049862063-
dc.identifier.hkuros301681-
dc.identifier.volume34-
dc.identifier.issue30-
dc.identifier.spage8785-
dc.identifier.epage8791-
dc.publisher.placeUnited States-

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