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A novel method for the synthesis of calcium carbonate (aragonite) nanoparticles from cockle shells


Islam, Kh. Nurul and Abu Bakar @ Zakaria, Md Zuki and Ali, Md. Eaqub and Hussein, Mohd Zobir and Mohamed Mustapha, Noordin and Mohamad Yusof, Loqman and Miah, Gous and Wahid, Hanif and Hashim, Uda (2013) A novel method for the synthesis of calcium carbonate (aragonite) nanoparticles from cockle shells. Powder Technology, 235. pp. 70-75. ISSN 0032-5910; ESSN: 1873-328X


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
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