Structure-property relationships of a biological mesocrystal in the   adult sea urchin spine

doi:10.1073/pnas.1109243109

CORC > 北京大学 > 化学与分子工程学院

	Structure-property relationships of a biological mesocrystal in the adult sea urchin spine
	Seto, Jong ; Ma, Yurong ; Davis, Sean A. ; Meldrum, Fiona ; Gourrier, Aurelien ; Kim, Yi-Yeoun ; Schilde, Uwe ; Sztucki, Michael ; Burghammer, Manfred ; Maltsev, Sergey ; Jaeger, Christian ; Coelfen, Helmut
刊名	proceedings of the national academy of sciences of the united states of america
	2012
关键词	calcium carbonate biomineralization echinoderm skeleton hierarchical structuring mesocrystal skeletal elements AMORPHOUS CALCIUM-CARBONATE ECHINODERM CALCITE SINGLE-CRYSTALS SPONGE SPICULES LARVAL SPICULE BIOMINERALIZATION PROTEINS GROWTH NANOCRYSTALS PHASE
DOI	10.1073/pnas.1109243109
英文摘要	Structuring overmany length scales is a design strategy widely used in Nature to create materials with unique functional properties. We here present a comprehensive analysis of an adult sea urchin spine, and in revealing a complex, hierarchical structure, showhow Nature fabricates a material which diffracts as a single crystal of calcite and yet fractures as a glassy material. Each spine comprises a highly oriented array of Mg-calcite nanocrystals in which amorphous regions and macromolecules are embedded. It is postulated that this mesocrystalline structure forms via the crystallization of a dense array of amorphous calcium carbonate (ACC) precursor particles. A residual surface layer of ACC and/or macromolecules remains around the nanoparticle units which creates the mesocrystal structure and contributes to the conchoidal fracture behavior. Nature's demonstration of howcrystallization of an amorphous precursor phase can create a crystalline material with remarkable properties therefore provides inspiration for a novel approach to the design and synthesis of synthetic composite materials.; Multidisciplinary Sciences; SCI(E); 0; ARTICLE; 10; 3699-3704; 109
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/393572]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Seto, Jong,Ma, Yurong,Davis, Sean A.,et al. Structure-property relationships of a biological mesocrystal in the adult sea urchin spine[J]. proceedings of the national academy of sciences of the united states of america,2012.
APA	Seto, Jong.,Ma, Yurong.,Davis, Sean A..,Meldrum, Fiona.,Gourrier, Aurelien.,...&Coelfen, Helmut.(2012).Structure-property relationships of a biological mesocrystal in the adult sea urchin spine.proceedings of the national academy of sciences of the united states of america.
MLA	Seto, Jong,et al."Structure-property relationships of a biological mesocrystal in the adult sea urchin spine".proceedings of the national academy of sciences of the united states of america (2012).