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Title Biological control of crystal texture: A widespread strategy for adapting crystal properties to function
Creator/Author Berman, A. ; Leiserowitz, L. ; Weiner, S. ; Addadi, L. (Weizmann Inst. of Science, Rehovot (Israel)) ; Hanson, J. ; Koetzle, T.F. (Brookhaven National Lab., Upton, NY (United States))
Publication Date1993 Feb 05
OSTI IdentifierOSTI ID: 6855095
DOE Contract NumberAC02-76CH00016
Other Number(s)ISSN0036-8075; CODEN: SCIEAS; 89-00148
Resource TypeJournal Article
Resource RelationScience (Washington, D.C.) ; Vol/Issue: 259:5096; DOE Project
Subject400201 -- Chemical & Physicochemical Properties; CALCITE-- BIOLOGICAL MODELS;CALCITE-- SURFACE PROPERTIES; ANISOTROPY;CONTROL;CRYSTAL STRUCTURE;SKELETON;TEXTURE;X-RAY DIFFRACTION
Related SubjectBODY;CARBONATE MINERALS;COHERENT SCATTERING;DIFFRACTION;MINERALS;ORGANS;SCATTERING
Description/Abstract Textures of calcite crystals from a variety of mineralized tissues belong to organisms from four phyla were examined with high-resolution synchrotron x-ray radiation.^Significant differences in coherence length and angular spread were observed between taxonomic groups.^Crystals from polycrystalline skeletal ensembles were more perfect than those that function as single-crystal elements.^Different anistropic effects on crystal texture were observed for sea urchin and mollusk calcite crystals, whereas none was found for the foraminifer, Patellina, and the control calcite crystals.^These results show that the manipulation of crystal texture in different organisms is under biological control and that crystal textures in some tissues are adapted to function.^A better understanding of this apparently widespread biological phenomenon may provide new insights for improving synthetic crystal-containing materials.^18 refs., 3 figs., 1 tab.
Country of PublicationUnited States
LanguageEnglish
FormatPages: 776-779
System Entry Date2001 May 13

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