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- Title
Synthesis of Nano-crystalline Hydroxyapatite from Dead Snail Shells for Biological Implantation.
- Authors
Dasgupta Adak, M.; Purohit, K. M.
- Abstract
Hydroxyapatite Ca10(PO4)6(OH)2 is an important biomaterial and is the principal replacement inorganic constituent of bones and teeth. It is also used as the replacement of heart valves, hip joints and other implants in the human body. A novel procedure to produce porous hydroxyapatite from dead snail shells is reported. Dead snail shells which are generally discarded as a biological waste are used as the raw material here. The thermal decomposition of the clean and dry snail shells was carried out by DTA/TG analysis. The snail shells were thermally treated and hydroxyapatite was produced through chemical route. The powder was characterized by X-Ray Diffraction, particle size analysis, DTA/TG analysis, scanning electron microscopy and infrared spectroscopy. As a result, the Heap particle exhibited a micrometer-sized spherical shape where Average particle size was found to be 60 - 80 nm. The crystalinity increased after calcinations and the size of crystallites range from 100-115 nm. Amount of hydroxyapatite obtained from route 1 is less compare to route 2 but purity of route 1 is higher as compare to route 2 in both cases. The snail shells seems to be a promising source of calcium for preparing nanocrystalline hydroxyapatite with excellent properties so essential for hard tissue replacement
- Publication
Trends in Biomaterials & Artificial Organs, 2011, Vol 25, Issue 3, p101
- ISSN
0971-1198
- Publication type
Academic Journal