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Article: Double emulsion droplets as microreactors for synthesis of mesoporous hydroxyapatite

TitleDouble emulsion droplets as microreactors for synthesis of mesoporous hydroxyapatite
Authors
Issue Date2009
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/cm
Citation
Chemistry Of Materials, 2009, v. 21 n. 22, p. 5548-5555 How to Cite?
AbstractWe introduce a novel approach for synthesizing mesoporous hydroxyapatite (HAp, (Ca)10, (PO4)6(OH)2) using double emulsion droplets as microreactors. By using capillary microfluidic techniques, the size and the geometry of the droplet microreactors can be tuned easily. Double emulsion droplets offer the combined advantages of both shielding the reactants and on-demand addition of reactants; this makes them highly versatile microreactors. Such droplet microreactors also enable simple visualization of the HAp formation process as well as control over the porosity in the HAp that is synthesized. Powder formed with our technique demonstrates a remarkable microstructure, as well as significantly enhanced BET specific average surface area and nanoscale porosity. Our results present a novel synthesis approach for controlling the nanoscale porosity and the morphology of inorganic particles using double emulsion droplets. © 2009 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/131754
ISSN
2015 Impact Factor: 9.407
2015 SCImago Journal Rankings: 4.232
ISI Accession Number ID
Funding AgencyGrant Number
NSFDMR-0602684
Harvard MRSECDMR-0820484
BASF Ludwigshafen in Germany
Funding Information:

This work was supported by the NSF (DMR-0602684) and the Harvard MRSEC (DMR-0820484). H.C.S. and D.A.W. were supported in part by BASF Ludwigshafen in Germany. We thank Dr. Christian Holtze for helpful discussions, the Particle Characterization Laboratory of Beckman Coulter, Inc. for the BET measurements, and Dr. William J. Croft for training on the X-ray diffractometer as well as Dr. Hunter Lauten and Prof. David Edwards for the use and help with the TGA experiments.

References

 

DC FieldValueLanguage
dc.contributor.authorShum, HCen_HK
dc.contributor.authorBandyopadhyay, Aen_HK
dc.contributor.authorBose, Sen_HK
dc.contributor.authorWeitz, DAen_HK
dc.date.accessioned2011-02-02T02:10:55Z-
dc.date.available2011-02-02T02:10:55Z-
dc.date.issued2009en_HK
dc.identifier.citationChemistry Of Materials, 2009, v. 21 n. 22, p. 5548-5555en_HK
dc.identifier.issn0897-4756en_HK
dc.identifier.urihttp://hdl.handle.net/10722/131754-
dc.description.abstractWe introduce a novel approach for synthesizing mesoporous hydroxyapatite (HAp, (Ca)10, (PO4)6(OH)2) using double emulsion droplets as microreactors. By using capillary microfluidic techniques, the size and the geometry of the droplet microreactors can be tuned easily. Double emulsion droplets offer the combined advantages of both shielding the reactants and on-demand addition of reactants; this makes them highly versatile microreactors. Such droplet microreactors also enable simple visualization of the HAp formation process as well as control over the porosity in the HAp that is synthesized. Powder formed with our technique demonstrates a remarkable microstructure, as well as significantly enhanced BET specific average surface area and nanoscale porosity. Our results present a novel synthesis approach for controlling the nanoscale porosity and the morphology of inorganic particles using double emulsion droplets. © 2009 American Chemical Society.en_HK
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/cmen_HK
dc.relation.ispartofChemistry of Materialsen_HK
dc.titleDouble emulsion droplets as microreactors for synthesis of mesoporous hydroxyapatiteen_HK
dc.typeArticleen_HK
dc.identifier.emailShum, HC:ashum@hku.hken_HK
dc.identifier.authorityShum, HC=rp01439en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/cm9028935en_HK
dc.identifier.scopuseid_2-s2.0-72149102452en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-72149102452&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume21en_HK
dc.identifier.issue22en_HK
dc.identifier.spage5548en_HK
dc.identifier.epage5555en_HK
dc.identifier.isiWOS:000271756400023-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridShum, HC=23976513800en_HK
dc.identifier.scopusauthoridBandyopadhyay, A=35582612800en_HK
dc.identifier.scopusauthoridBose, S=7401626559en_HK
dc.identifier.scopusauthoridWeitz, DA=7006798731en_HK

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