Thermal preparation of highly porous calcium phosphate bone filler derived from marine algae |
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| Authors: | P J Walsh G M Walker C A Maggs F J Buchanan |
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| Affiliation: | (1) Polymer Research Cluster, School of Mechanical and Aerospace Engineering, Queen’s University of Belfast, Ashby Building, Stranmillis Road, Belfast, BT9 5AH, Northern Ireland, UK;(2) School of Chemistry and Chemical Engineering, Queens University of Belfast, Belfast, Northern Ireland, UK;(3) School of Biological Sciences, Queens University of Belfast, Belfast, Northern Ireland, UK |
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| Abstract: | A sustainable marine-derived bioceramic with a unique porous structure has been developed for hard tissue repair. The conversion
of alga was achieved through a novel technique, involving well controlled thermal processing followed by low pressure–temperature
hydrothermal synthesis. In its preparation, a heat treatment step was required to remove the organic compounds from the algae,
which reinforces the mineralised matrices. Its removal is necessary to prevent issue such as immune biocompatibility and ensure
phase purity of the resultant biomaterial. This paper investigates the hydrothermal technique used for the transformation
of mineralised red algae to hydroxyapatite that preserves the algae’s unique structure. It specifically focuses on the effects
of heat treatment on the morphology of the algae, TGA, SEM and hot stage XRD to quantity the changes. |
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