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Preparation and Characterization of Mesoporous Hydroxyapatite with Non-cytotoxicity and Heavy Metal Adsorption Capacity

Abstract

Mesoporous hydroxyapatite (MPHA) particles have recently gained a great deal of interest in a broad range of fields including biomedical fields, wastewater treatment and catalysis. In this paper, we describe a novel and convenient route to synthesise MPHA particles using calcium carbonate nanoparticle templates for the formation of mesopores in HA. In this method, both nano-CaCO3 templates and HA are prepared simultaneously using calcium sucrate as a precursor by allowing the nano-CaCO3 to embed in HA. Mesopores in HA are obtained by removing the themplate. The porosity of HA is confirmed by Brunauer-Emmett-Teller (BET) analysis and the average pore size (below 50 nm) is determined by Transmission Electron Microscopy (TEM) images. The synthesized material is noncytotoxic as confirmed by cytotoxicity studies which make a potential candidate as a biomaterial for biomedical applications. Furthermore, the MPHA shows a superior adsorption ability towards Pb2+ Ni2+ and Cd2+ in aqueous solutions which could also be used as an environmental-friendly material for wastewater treatment and water purification. Therefore, we believe that this simple and novel synthesis route for the fabricating of porous HA could be useful in fulfilling the current demand of HA in biomedical and water purification applications.

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Publication details

The article was received on 07 Feb 2018, accepted on 14 May 2018 and first published on 15 May 2018


Article type: Paper
DOI: 10.1039/C8NJ00673C
Citation: New J. Chem., 2018, Accepted Manuscript
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    Preparation and Characterization of Mesoporous Hydroxyapatite with Non-cytotoxicity and Heavy Metal Adsorption Capacity

    W.P.S.L. Wijesinghe, P. Mantilaka, T. A. N. Peiris, R. M. G. Rajapakse, U. Wijayantha, H.M.T.G.A Pitawala, T.N. Premachandra, H.M.T.U Herath and R. P. V. J. Rajapakse, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8NJ00673C

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