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Biomimetic vaterite formation at surfaces structurally templated by oligo(glutamic acid) peptides

Author:
Lu, Hao, Hood, Matthew A., Mauri, Sergio, Baio, Joe E., Bonn, Mischa, Muñoz-Espí, Rafael, Weidner, Tobias
Source:
Chemical communications 2015 v.51 no.88 pp. 15902-15905
ISSN:
1364-548X
Subject:
additives, biomimetics, calcium, calcium carbonate, ions, mineralization, peptides, vaterite
Abstract:
Previous studies have reported that the metastable vaterite phase of calcium carbonate can be stabilized in solution by acidic additives. Here we demonstrate that vaterite can also be stabilized directly at surfaces by engineered peptides. Our data show that the mineralisation occurs in a ‘self-templating’ process where calcium ions restructure the peptide backbone, which in turn allows for effective vaterite precipitation.
Agid:
6611486