Catalytic Biomineralization of Fluorescent Calcite by the Thermophilic Bacterium Geobacillus thermoglucosidasius
Open Access
- 1 November 2010
- journal article
- Published by American Society for Microbiology in Applied and Environmental Microbiology
- Vol. 76 (21), 7322-7327
- https://doi.org/10.1128/aem.01767-10
Abstract
The thermophilic Geobacillus bacterium catalyzed the formation of 100-μm hexagonal crystals at 60°C in a hydrogel containing sodium acetate, calcium chloride, and magnesium sulfate. Under fluorescence microscopy, crystals fluoresced upon excitation at 365 ± 5, 480 ± 20, or 545 ± 15 nm. X-ray diffraction indicated that the crystals were magnesium-calcite in calcite-type calcium carbonate.Keywords
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