Orientation and Morphology of Calcite Nucleated under Floating Monolayers: A Magnesium-ion-enhanced Nucleation Study

Journal Article · Sat Dec 31 04:00:00 EST 2011 · Journal of Crystal Growth

DOI:https://doi.org/10.1016/j.jcrysgro.2011.01.102· OSTI ID:1041761

Stripe, B; Uysal, A; Dutta, P

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.

• Research Organization: BROOKHAVEN NATIONAL LABORATORY (BNL)
• Sponsoring Organization: USDOE SC OFFICE OF SCIENCE (SC)
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 1041761
• Report Number(s): BNL--97439-2012-JA
• Journal Information: Journal of Crystal Growth, Journal Name: Journal of Crystal Growth Journal Issue: 1 Vol. 319; ISSN 0022-0248; ISSN JCRGAE
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ALCOHOLS
CALCITE
CALCIUM CARBONATES
CONTROL
CRYSTAL GROWTH
CRYSTALLIZATION
CRYSTALS
INCIDENCE ANGLE
MAGNESIUM IONS
MORPHOLOGY
NUCLEATION
ORIENTATION
SULFATES
X-RAY DIFFRACTION