Structural Relationship between Calcite-Gelatine Composites and Biogenic (Human) Otoconia

CORC > 厦门大学 > 材料学院－已发表论文

	Structural Relationship between Calcite-Gelatine Composites and Biogenic (Human) Otoconia
	Simon, Paul ; Carrillo-Cabrera, Wilder ; Huang, Ya-Xi ; Buder, Jana ; Borrmann, Horst ; Cardoso-Gil, Raul ; Rosseeva, Elena ; Yarin, Yuri ; Zahnert, Thomas ; Kniep, Ruediger ; Huang YX(黄雅熙)
刊名	http://dx.doi.org/10.1002/ejic.201100756
	2011-12
关键词	OTOLITH MATRIX PROTEINS INNER-EAR INTERNAL STRUCTURE REAL-STRUCTURE FLUORAPATITE NANOCOMPOSITES COMPLEX FORM BIOMINERALIZATION MINERALIZATION
英文摘要	Biogenic otoconia (ear dust) are composite materials of calcite with about 2 wt.-% proteins showing an average longitudinal size of about 10 mu m. The tiny biomineral particles are situated in the inner ear (in the maculae) and act as sensors for gravity and linear acceleration. Our comparative study of calcitegelatine composites (grown by double diffusion) and human otoconia is based on decalcification experiments, scanning electron microscopy, TEM and X-ray investigations in order to obtain a complete picture of the 3D structure and morphogenesis of the materials. Otoconia as calciteprotein composites display a cylindrical body with terminal rhombohedral faces intersecting at the pointed ends. As evidenced by TEM on focused ion beam cuts, both the artificial composites and human otoconia show a particular distribution of areas with different volume densities leading to a dumbbell-shape of the more dense parts consisting of rhombohedral branches (with end faces) and a less ordered, less dense area (the belly region). The peculiar inner architecture of otoconia with its dumbbell-shaped mass/density distribution is assumed to be necessary for optimal sensing of linear accelerations.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/59956]
专题	材料学院－已发表论文
推荐引用方式 GB/T 7714	Simon, Paul,Carrillo-Cabrera, Wilder,Huang, Ya-Xi,et al. Structural Relationship between Calcite-Gelatine Composites and Biogenic (Human) Otoconia[J]. http://dx.doi.org/10.1002/ejic.201100756,2011.
APA	Simon, Paul.,Carrillo-Cabrera, Wilder.,Huang, Ya-Xi.,Buder, Jana.,Borrmann, Horst.,...&黄雅熙.(2011).Structural Relationship between Calcite-Gelatine Composites and Biogenic (Human) Otoconia.http://dx.doi.org/10.1002/ejic.201100756.
MLA	Simon, Paul,et al."Structural Relationship between Calcite-Gelatine Composites and Biogenic (Human) Otoconia".http://dx.doi.org/10.1002/ejic.201100756 (2011).