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

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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.
  • This is the publisher’s final pdf. The published article is copyrighted by the Royal Society of Chemistry and can be found at: http://pubs.rsc.org/en/Journals/JournalIssues/CC#!recentarticles&adv
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  • Lu, H., Hood, M. A., Mauri, S., Baio, J. E., Bonn, M., Muñoz-Espí, R., & Weidner, T. (2015). Biomimetic vaterite formation at surfaces structurally templated by oligo (glutamic acid) peptides. Chemical Communications, 51(88), 15902-15905. doi:10.1039/c5cc05830a
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  • 51
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  • 88
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  • HL and TW thank the European Commission (CIG grant #322124) and the Deutsche Forschungsgemeinschaft (WE4478/2-1) for financial support. We thank Daniel Fischer and Cherno Jaye (NIST) for providing us with the experimental equipment for NEXAFS spectroscopy and their help at the synchrotron. NEXAFS studies were performed at the NSLS, Brookhaven National Laboratory, which is supported by the U.S. Department of Energy, Division of Materials Science and Division of Chemical Sciences.
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file details LuBiomimeticVateriteFormation.pdf 10/16/2017 公开
file details LuBiomimeticVateriteFormationSupportingInformation.pdf 10/16/2017 公开