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学科主题: 药学
题名:
Structure of Clusters and Formation of Amorphous Calcium Phosphate and Hydroxyapatite: From the Perspective of Coordination Chemistry
作者: Du, Lin-Wei1; Bian, Sha1; Gou, Bao-Di1; Jiang, Yun1; Huang, Jian1; Gao, Yu-Xi2,3; Zhao, Yi-Dong2,3; Wen, Wen4; Zhang, Tian-Lan1; Wang, Kui1
刊名: CRYSTAL GROWTH & DESIGN
发表日期: 2013-07-01
DOI: 10.1021/cg400498j
卷: 13, 期:7, 页:3103-3109
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Chemistry, Multidisciplinary ; Crystallography ; Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ; Crystallography ; Materials Science
关键词[WOS]: POSNERS CLUSTER ; CRYSTALLIZATION ; ENVIRONMENT ; NUCLEATION ; CONVERSION ; WATER
英文摘要:

Amorphous calcium phosphate often forms as a precursor phase in a solution at sufficiently high supersaturation and pH, and then transforms to the thermodynamically stable hydroxyapatite. The chemical composition, structure, and property of the amorphous phase are dependent on the structure of its composing clusters. Based on the results from the measurements of in situ Ca K-edge X-ray near-edge structure and ex situ X-ray diffraction, as well as the concomitant pH change in the reaction process, here we propose an improved model for the structure of "Posner′s cluster" and identify the three types of reactions that lead to the formation of amorphous calcium phosphate and its subsequent transition to crystalline hydroxyapatite.

语种: 英语
所属项目编号: 21071007
项目资助者: National Natural Science Foundation of China
WOS记录号: WOS:000321542900047
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/52438
Appears in Collections:北京大学药学院_化学生物学系_期刊论文

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作者单位: 1.Peking Univ, Sch Pharmaceut Sci, Dept Biol Chem, Beijing 100191, Peoples R China
2.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst High Energy Phys, Key Lab Nucl Analyt Tech, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China

Recommended Citation:
Du, Lin-Wei,Bian, Sha,Gou, Bao-Di,et al. Structure of Clusters and Formation of Amorphous Calcium Phosphate and Hydroxyapatite: From the Perspective of Coordination Chemistry[J]. CRYSTAL GROWTH & DESIGN,2013,13(7):3103-3109.
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