2024-03-28T09:28:15Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:00002588
2022-12-15T03:35:54Z
423:424:425
453:454
Synthesis of hydroxyapatite by interfacial reaction in a multiple emulsion
Kimura, Isao
Interfacial reaction in a multiple emulsion, which is one of methods for producing inorganic microspheres, was applied to synthesize hydroxyapatite. The multiple emulsion was a W/O/W emulsion, made of dipotassium hydrogen phosphate solution as an inner aqueous phase, benzene as an oil phase, and calcium nitrate solution as an outer aqueous phase. The reaction was carried out in the multiple emulsion for 24 hours at 323 K. The crystalline phase was varied with an initial pH of the inner aqueous phase, and single phase hydroxyapatite was synthesized at an initial pH of 12. The products were composed of porous microspheres of less than 3 μm in size. The microspheres were composed of nanospheres of less than 120 nm in size. By considering the mass balance, it was suggested that each nanosphere was formed in an inner aqueous phase droplet.
Hindawi
2007-11
eng
journal article
VoR
http://hdl.handle.net/10191/21869
https://niigata-u.repo.nii.ac.jp/records/2588
https://doi.org/10.1155/2007/71284
1687-6822
Research Letters in Materials Science
2007
1
4
https://niigata-u.repo.nii.ac.jp/record/2588/files/2007_1-4.pdf
application/pdf
1.1 MB
2019-07-29