Journal
SEPARATION AND PURIFICATION TECHNOLOGY
Volume 161, Issue -, Pages 129-135Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.seppur.2016.01.047
Keywords
Ionic liquid; Fish scale; Hydroxyapatite; Extraction; Characterization; Biocompatibility
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Funding
- National Natural Science Foundation of China [21273235]
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In this study the waste fish scales (FS) were dissolved in 1-butyl-3-methylimidazolium acetate ionic liquid to obtain a valuable product of hydroxyapatite (HAp). The HAp was obtained in the yield of 32 +/- 2%. The obtained HAp was characterized using Fourier Transform Infrared Spectroscopy (FTIR), Powder Xrays Diffraction (PXRD), Thermal Gravimetric Analysis (TGA), Field Emission Scanning Microscopy (FE-SEM), Energy Dispersive X-rays spectroscopy (EDX), and Brunauer-Emmett-Teller (BET). The results of FTIR and XRD showed the characteristic peaks of the HAp. The thermal degradation temperature of the extracted HAp was relatively high. Furthermore, low weight loss was measured which confirmed the removal of organic part of FS during ionic liquid treatment. The FE-SEM result showed the particles with different morphologies and EDX analysis showed a Ca/P ratio of 1.60 for the extracted HAp. The biocompatibility of the extracted HAp was assessed through MTT cell viability assay using known Human Embryonic Kidney 293 cells (HEK cells) and epidermoid carcinoma cells (A431 cells). (C) 2016 Elsevier B.V. All rights reserved.
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