Morphological control of calcium phosphate nanostructures using lyotropic liquid crystals
Journal article, 2014

Organisms use "soft" organic compartments to control the morphology of the embedded "hard" minerals. Here we present a simple method using liquid crystal (LC) phases as "soft" and "inert" templates to prepare nanostructured calcium phosphates (CaPs), which are inorganics of known bioefficacy. Specifically, 6 nm-thick CaP nanowires and CaP sheets that precisely replicate reverse hexagonal (H-2) and lamellar (L-alpha) LCs have been successfully synthesized and we attribute this to the sufficient spatial regulation offered by the negative (H-2) or flat curvature (L-alpha) of the aqueous domain. A normal hexagonal (H-1) phase possesses a positive curvature of the aqueous domain, therefore limited spatial restriction. For this reason, precise replication of the H-1 phase by CaP has not been possible. Interestingly, the dynamic nature of the template allowed the construction of micron-sized brushite objects with a laminated structure decorating a specific facet, possibly as a result of epitaxial overgrowth of nano-sized brushite subunits. BONA F, 1993, JOURNAL OF CRYSTAL GROWTH, V131, P331

Author

Wenxiao He

Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry

Fu Yu

Chalmers, Chemical and Biological Engineering

Martin Andersson

Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry

Journal of Materials Chemistry B

20507518 (ISSN) 2050750X (eISSN)

Vol. 2 21 3214-3220

Subject Categories

Physical Chemistry

DOI

10.1039/c4tb00095a

More information

Created

10/7/2017