Journal
NANO TODAY
Volume 6, Issue 6, Pages 564-584Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.nantod.2011.10.005
Keywords
Amorphous precursors; Biomineralization; Biomimetic mineralization; Crystallization; Nucleation; Prenucleation clusters
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In this contribution, we review the recent literature on an alternative crystallization pathway involving stable clusters prior to nucleation and show that the prenucleation cluster pathway is a truly non-classical concept of nucleation. Prenucleation clusters are solutes with molecular character in aqueous solution. It becomes evident that the stable clusters may have been concealed by the so-called ion pair concept and activity effects. We show that non-classical nucleation via stable prenucleation clusters is a highly valuable concept for a novel understanding of phenomena observed in bio- and biomimetic mineralization, which however may hardly be rationalized by means of classical nucleation theory. The importance to combine experimental and theoretical studies is emphasized. (C) 2011 Elsevier Ltd. All rights reserved.
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