Fabrication of dispersible calcium phosphate nanocrystals via a modified Pechini method under non-stoichiometric conditions

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Fabrication of dispersible calcium phosphate nanocrystals via a modified Pechini method under non-stoichiometric conditions

Persistent ID (NDL): info:ndljp/pid/12071651

Material type: 博士論文

Author: ⼤森, 裕⼦

Publisher: -

Publication date: 2015-03-06

Material Format: Digital

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Name of awarding university/degree: 大阪歯科大学,博士（歯学）

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Note (General)：: Various techniques for preparing ceramic nanoparticles have been developed; however, most of them start from a preparation of precursor nanoparticles ...

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Material Type: 博士論文
Title: Fabrication of dispersible calcium phosphate nanocrystals via a modified Pechini method under non-stoichiometric conditions
Author/Editor: ⼤森, 裕⼦
Author Heading: ⼤森, 裕⼦
Publication Date: 2015-03-06
Publication Date (W3CDTF): 2015-03-06
Alternative Title: 改良 Pechini 法による分散性リン酸カルシウムナノ粒⼦の開発
Degree grantor/type: 大阪歯科大学
Date Granted: 2015-03-06
Date Granted (W3CDTF): 2015-03-06
Dissertation Number: 甲第743号
Degree Type: 博士（歯学）
Conferring No. (Dissertation): 甲第743号
Text Language Code: eng
Subject Heading: Acrylic Resins
Citric Acid
Ethylene Glycol
Hydroxyapatites
Nanoparticles
Nanotechnology
Particle Size
Target Audience: 一般
Note (General): Various techniques for preparing ceramic nanoparticles have been developed; however, most of them start from a preparation of precursor nanoparticles that are generally amorphous or in poorly crystallized phases. Thermal treatments used to obtain crystalline phases typically result in the sintering of the products into large polycrystals. In this study, we developed a process to fabricate dispersible hydroxyapatite (HAp; Ca10(PO4)6(OH)2) nanocrystals via a modified Pechini method, which is a sol-gel like solid-state synthesis method for the preparation of multicomponent oxides. We demonstrated that the HAp nanocrystals sintered into large polycrystals ranging in size from several tens to several hundreds of microns via a conventional Pechini method using the stoichiometric Ca/P molar ratio of 1.67. When the Ca/P molar ratio in the precursor was >1.67, a mixture of HAp nanocrystals and removable CaO matrix was obtained. The HAp nanocrystals were dispersed in aqueous media mostly in the form of nanoparticles when the amount of CaO matrix was sufficiently greater than the amount of HAp.
2014年度
Persistent ID (NDL): info:ndljp/pid/12071651
https://dl.ndl.go.jp/pid/12071651
Collection: 障害者向け資料
Collection (Materials For Handicapped People:1): テキストデータ
Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文
https://dl.ndl.go.jp/collections/A00014
Acquisition Basis: 博士論文（自動収集）
Date Accepted (W3CDTF): 2022-02-06T04:33:19+09:00
Date Created (W3CDTF): 2016-07-13
Format (IMT): application/pdf
Access Restrictions: 国立国会図書館内限定公開
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Availability of remote photoduplication service: 可
Periodical Title (URI): http://id.nii.ac.jp/1392/00000069/
Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション
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