Bone Implant Materials from Eggshell Waste

Hydroxyapatite powder has been synthesized from eggshell waste using a simple hydrothermal synthesis. The process involved drying and thermal decomposition of eggshell into calcium oxide followed by a hydrothermal reaction at a temperature of as low as 90°C with ammonium di-hydrogen phosphate and wa...

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Published inApplied Mechanics and Materials Vol. 776; no. Recent Decisions in Technologies for Sustainable Development; pp. 282 - 288
Main Author Sopyan, Iis
Format Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 01.07.2015
Subjects
Biomedical materials
Bones
Hydroxyapatite
Nanostructure
Phase transformations
Phosphates
Surgical implants
Wastes
Eggshell
Hydroxyapatite
Hydrothermal Reaction
Bone Implant Materials
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Summary:Hydroxyapatite powder has been synthesized from eggshell waste using a simple hydrothermal synthesis. The process involved drying and thermal decomposition of eggshell into calcium oxide followed by a hydrothermal reaction at a temperature of as low as 90°C with ammonium di-hydrogen phosphate and water. The produced hydroxyapatite powder is extraordinarily fine with nanosize primary particles. The yield of conversion is high, ca. 90%. Hydroxyapatite pure phase can be maintained until calcination of below 900°C, at which β-tricalcium phosphate phase started to appear to transform into biphasic calcium phosphate. Its high purity as proved by XRD shown that the product fulfills medical requirement. The present invention provides an environmentally beneficial and straightforward method of producing hydroxyapatite for bone implant materials using eggshell waste.
Bibliography:Selected, peer reviewed papers from the 3rd International Conference on Sustainable Technology Development (ICSTD 2014), October 30-31, 2014, Bali, Indonesia
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ISBN:9783038355045
3038355046
ISSN:1660-9336
1662-7482
1662-7482
DOI:10.4028/www.scientific.net/AMM.776.282