Lee Seung Woo, Kim Young Moon, Kim Ryun Hwa, Choi Cheong Song
Materials & Minerals Processing Division, Korea Institute of Geoscience & Mineral Resources, Daejeon 305-350, Republic of Korea.
Micron. 2008 Jun;39(4):380-6. doi: 10.1016/j.micron.2007.03.006. Epub 2007 Mar 23.
The thin sheets of calcite in oyster shell in Crassostrea gigas are termed folia and comprise much of the oyster shell. The folia are covered by a layer of discrete globules that has been proposed to consist of aggregations of an organic matrix and minerals. A continuous organic framework divides each tablet into nanograins. Their shape is globular with a mean extension from 30 to 40 nm. Chemical and thermal treatments to correlate between the organic matrix and the minerals are considered using spectrometers, thermal analyzers, and electron microscopes. After treatment, the nanograins of the foliar and organic matrix are clearly identified. The organic matrix plays a key role in the thermal stability and material properties of this biological composite. From analysis of the FT-IR results, it is identified that the organic matrix in folia is composed of proteins and polysaccharides.
太平洋牡蛎壳中的方解石薄片被称为薄片层，构成了牡蛎壳的大部分。薄片层被一层离散的小球覆盖，有人认为这些小球由有机基质和矿物质的聚集体组成。一个连续的有机框架将每个薄片分成纳米颗粒。它们的形状是球形的，平均直径在30到40纳米之间。使用光谱仪、热分析仪和电子显微镜来考虑进行化学和热处理，以关联有机基质和矿物质。处理后，薄片层和有机基质的纳米颗粒清晰可辨。有机基质在这种生物复合材料的热稳定性和材料性能中起着关键作用。通过对傅里叶变换红外光谱结果的分析，确定薄片层中的有机基质由蛋白质和多糖组成。
