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鸟嘌呤晶体的生物控制形态和孪生
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2017-07-06 11:00:31 , DOI: 10.1002/anie.201704801
Anna Hirsch 1 , Benjamin A. Palmer 2 , Nadav Elad 3 , Dvir Gur 4 , Steve Weiner 2 , Lia Addadi 2 , Leeor Kronik 1 , Leslie Leiserowitz 1
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鸟嘌呤晶体在自然界中广泛用作多层反射器的组成部分。在pe足类角质层和扇贝眼的镜子中发现的基于鸟嘌呤的反射系统是独特的,因为将多层反射器平铺以形成连续的排列阵列。在co足动物的表皮中,六角形晶体紧密堆积以产生鲜艳的色彩。在扇贝眼中,将方晶体平铺以获得成像反射镜。瓷砖的大小约为1μm,厚度为70 nm。根据对它们的电子衍射图的分析,六边形和正方形砖不是单晶。相反,每种类型的瓷砖都是似乎是三个方向不同并相互堆叠的晶域的合成,这是通过分别绕其⟨011⟩和⟨021⟩晶轴进行两次重复孪晶而实现的。



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更新日期:2019-12-21
二才发布于2019-12-21  0
Rather, each tile type is a composite of what appears to be three crystalline domains differently oriented and stacked onto one another, achieved through a twice-repeated twinning about their ⟨011⟩ and ⟨021⟩ crystal axes, respectively.这句话中的three crystalline和最后一句怎么理解?
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