Orientation and morphology of calcite nucleated under floating monolayers: A magnesium-ion-enhanced nucleation study

Benjamin Stripe, Ahmet Uysal, Pulak Dutta*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

We have studied the biomimetic growth of calcium carbonate crystals under floating monolayer templates, in the presence of Mg ions, using grazing incidence X-ray diffraction and SEM imaging. Crystals grown under sulfate monolayers nucleate from the (0 0 1) plane with and without Mg ions, while undergoing substantial changes in morphology. Crystals grown under alcohol monolayers nucleate from the (1 0 4) plane in the presence of Mg. X-ray data do not detect orientation in crystals grown under acid monolayers, but at higher Mg concentrations the resulting morphologies are indicative of template-nucleated growth. These results suggest that Mg provides living organisms a way to enhance the orientation and control the morphology of acid-templated crystals.

Original languageEnglish (US)
Pages (from-to)64-69
Number of pages6
JournalJournal of Crystal Growth
Volume319
Issue number1
DOIs
StatePublished - Mar 15 2011

Keywords

  • A1. Biocrystallization
  • A1. X-ray diffraction
  • B1. Calcium compounds

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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