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- Title
Structural and functional analyses of organic molecules regulating biomineralization.
- Authors
Suzuki, Michio
- Abstract
Biomineralization by living organisms are common phenomena observed everywhere. Molluskan shells are representative biominerals that have fine microstructures with controlled morphology, polymorph, and orientation of CaCO3 crystals. A few organic molecules involved in the biominerals play important roles in the formation of such microstructures. Analyses of structure–function relationships for matrix proteins in biominerals revealed that almost all matrix proteins have an acidic region for the binding of calcium ion in CaCO3 crystals and interaction domains for other organic molecules. On the other hand, biomineralization of metal nanoparticles by microorganisms were also investigated. Gold nanoparticles and quantum dots containing cadmium were successfully synthesized by bacteria or a fungus. The analyses of components revealed that glycolipids, oligosaccharides, and lactic acids have key roles to synthesize the gold nanoparticle in Lactobacillus casei as reductants and dispersants. These researches about biomineralization will give new insights for material and environmental sciences in the human society. Biomineralization, in which organisms create hard tissues, with hardness or flexibility enhanced by organic–inorganic interactions occurred in various living organisms.
- Subjects
BIOMINERALIZATION; MATERIALS science; FUNCTIONAL analysis; EXTRACELLULAR matrix proteins; METAL nanoparticles; GLYCOLIPIDS; LACTOBACILLUS casei; LACTOBACILLUS
- Publication
Bioscience, Biotechnology & Biochemistry, 2020, Vol 84, Issue 8, p1529
- ISSN
0916-8451
- Publication type
Article
- DOI
10.1080/09168451.2020.1762068