Nanoscale imaging of mineral crystals inside biological composite materials using x-ray diffraction microscopy

被引：50

作者：

Jiang, Huaidong ^{[1
]}

Ramunno-Johnson, Damien ^{[1
]}

Song, Changyong ^{[1
]}

Amirbekian, Bagrat ^{[1
]}

Kohmura, Yoshiki ^{[2
]}

Nishino, Yoshinori ^{[2
]}

Takahashi, Yukio ^{[3
]}

Ishikawa, Tetsuya ^{[2
]}

Miao, Jianwei ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

[2] RIKEN SPring 8 Ctr, Sayo, Hyogo 6795148, Japan

[3] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.100.038103

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We for the first time applied x-ray diffraction microscopy to the imaging of mineral crystals inside biological composite materials-intramuscular fish bone-at the nanometer scale resolution. We identified mineral crystals in collagen fibrils at different stages of mineralization. Based on the experimental results and biomineralization analyses, we suggested a dynamic model to account for the nucleation and growth of mineral crystals in the collagen matrix. The results obtained from this study not only further our understanding of the complex structure of bone, but also demonstrate that x-ray diffraction microscopy will become an important tool to study biological materials.

引用

页数：4

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