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Morphogenesis of Self-Assembled Nanocrystalline Materials of Barium Carbonate and Silica

Garcia-Ruiz, Juan Manuel; Melero-Garcia, Emilio; Hyde, Stephen


The precipitation of barium or strontium carbonates in alkaline silica-rich environments leads to crystalline aggregates that have been named silica/carbonate biomorphs because their morphology resembles that of primitive organisms. These aggregates are self-assembled materials of purely inorganic origin, with an amorphous phase of silica intimately intertwined with a carbonate nanocrystalline phase. We propose a mechanism that explains all the morphologies described for biomorphs. Chemically...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
Source: Science
DOI: 10.1126/science.1165349


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