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Crystal orientations in nacreous layers of organic-inorganic biocomposites

机译:有机无机生物复合物珍珠层中的晶体取向

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Abalone shell comprises a bio-composite material, combining the properties of inorganic calcite intergrown with organic nacre. This paper reports about the microstructure of this composite. By examining the Kikuchi patterns obtained for nacre (Haliotis discus hannai) using transmission electron microscopy, we have shown that the tiles within nacre have specific orientations. The stereographic projection spheres for the tiles of nacre can be divided into two main types, namely a right oriented region and a left oriented region with respect to the c axis as a reference plane (001). The cluster character of nacre can be explained in terms of the growth mechanism of the 'Christmas tree' pattern. The orientation of the c-axis in the nacreous layer is elucidated for the first time. We demonstrate the use of the soluble protein obtained from the tiles of nacre in in uitro calcium carbonate crystallization.
机译:鲍鱼壳由生物复合材料组成,结合了无机方解石与有机珍珠质的共生特性。本文报道了这种复合材料的微观结构。通过使用透射电子显微镜检查获得的珍珠质(Haliotis discus hannai)的菊池图案,我们显示珍珠质内的瓷砖具有特定的方向。珍珠质砖的立体投影球体可以分为两种主要类型,即相对于作为参考平面的c轴的朝右的区域和朝左的区域(001)。珍珠质的簇状特征可以用“圣诞树”图案的生长机理来解释。首次阐明了珠质层中c轴的方向。我们证明了从珍珠层的瓷砖中获得的可溶性蛋白在体外碳酸钙结晶中的用途。

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