Citation
Abstract
We report a simple, novel and low-cost method for the synthesis of aragonite nanoparticles from cockle shells. Aragonite is one of the least abundant biogenic polymorphs of calcium carbonate and is widely used as a biomaterial for the repair of fractured bone, development of advanced drug delivery systems, and tissue scaffolds. The method involves a simple mechanical grinding of the micron-sized cockle shell powders in the presence of a non-toxic and non-hazardous biomineralization catalyst, dodecyl dimethyl betaine (BS-12). The method produces rod-shaped aragonite particles with a diameter of 20 ± 5 nm with good reproducibility and without any additional impurities. This was confirmed by a combined analysis of variable pressure scanning electron microscopy (VPSEM), transmission electron microscopy (TEM), Fourier transmission infrared spectroscopy (FTIR), thermogravimetric analyzer (TGA), X-ray diffraction spectroscopy (XRD) and energy dispersive X-ray analyser (EDX). The method should find potential applications in industry for the large scale synthesis of aragonite nanoparticles from a low cost but abundant natural resource such as cockle shells.
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Additional Metadata
| Item Type: | Article |
|---|---|
| Divisions: | Faculty of Science Faculty of Veterinary Medicine Institute of Bioscience Institute of Tropical Agriculture |
| DOI Number: | https://doi.org/10.1016/j.powtec.2012.09.041 |
| Publisher: | Elsevier |
| Keywords: | Cockle shells; Aragonite nanoparticles; Biomaterials; Biomineralization catalyst |
| Depositing User: | Nabilah Mustapa |
| Date Deposited: | 04 Jul 2015 01:56 |
| Last Modified: | 21 Nov 2016 02:31 |
| Altmetrics: | http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.powtec.2012.09.041 |
| URI: | http://psasir.upm.edu.my/id/eprint/29834 |
| Statistic Details: | View Download Statistic |
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