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Calcite Crystal Growth by a Solid‐State Transformation of Stabilized Amorphous Calcium Carbonate Nanospheres in a Hydrogel
Author(s) -
Gal Assaf,
Habraken Wouter,
Gur Dvir,
Fratzl Peter,
Weiner Steve,
Addadi Lia
Publication year - 2013
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201210329
Subject(s) - calcite , amorphous calcium carbonate , nucleation , amorphous solid , calcium carbonate , phase (matter) , chemical engineering , transformation (genetics) , materials science , crystal (programming language) , carbonate , calcium , mineralogy , nanotechnology , crystallography , chemistry , computer science , metallurgy , composite material , organic chemistry , engineering , biochemistry , programming language , gene
An ugly duckling grows into a swan : Many organisms grow their crystalline mineral phases through the secondary nucleation of nanospheres made of an amorphous precursor phase. Stable amorphous calcium carbonate biominerals were used to induce a similar transformation in vitro. The amorphous nanospheres underwent a solid‐phase transformation that resulted in highly ordered calcite crystals composed of aggregated particles (see SEM image).

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