New insights into chalk mineralization
How does calcareous algae develop nanostructures?
August 04, 2016
The Potsdam based scientists published their results in “Science”. The coccoliths are tiny chalk shells, protecting the algae and are highly ordered arrangements of calcite crystals produced by the organisms. Depending on the organism, these structures are quite divers. But how are these structures formed? According to the study, the localization of crystals within the coccoliths is determined by the interaction of nucleating macromolecules with the mineral phase. The scientists showed that a specific interaction between soluble organic molecules and an organic backbone structure directs mineral components to specific sites.
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