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Structural changes to resorbable calcium phosphate bioceramic aged in vitro

Mehrban, Nazia; Bowen, James; Vorndran, Elke; Gbureck, Uwe and Grover, Liam M. (2013). Structural changes to resorbable calcium phosphate bioceramic aged in vitro. Colloids and Surfaces B: Biointerfaces, 111 pp. 469–478.

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This work investigates the effect of mammalian cell culture conditions on 3D printed calcium phosphate scaffolds. The purpose of the studies presented was to characterise the changes in scaffold properties in physiologically relevant conditions. Differences in crystal morphologies were observed between foetal bovine serum-supplemented media and their unsupplemented analogues, but not for supplemented media containing tenocytes. Scaffold porosity was found to increase for all conditions studied, except for tenocyte-seeded scaffolds. The presence of tenocytes on the scaffold surface inhibited any increase in scaffold porosity in the presence of extracellular matrix secreted by the tenocytes. For acellular conditions the presence or absence of sera proteins strongly affected the rate of dissolution and the distribution of pore diameters within the scaffold. Exposure to high sera protein concentrations led to the development of significant numbers of sub-micron pores, which was otherwise not observed. The implication of these results for cell culture research employing calcium phosphate scaffolds is discussed.

Item Type: Journal Item
Copyright Holders: 2013 Elsevier B.V.
ISSN: 1873-4367
Keywords: calcium phosphate; degradation; porosity
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 43160
Depositing User: James Bowen
Date Deposited: 01 Jun 2015 09:45
Last Modified: 10 Dec 2018 06:49
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