Journal
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Volume 37, Issue 2, Pages 833-840Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2016.09.032
Keywords
Titanium dioxide; Ceramic; Bone scaffolds; Electric stimuli
Categories
Funding
- JECS Trust Fund
- National Research Programme [2014.10-4/VPP-3/21, 4]
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Bone healing can be significantly improved by applying electrical stimuli in the injured region. Thus, electrically active scaffolds with 3D structure are of interest as bone graft substitute materials. Such materials can locally deliver electrical current to the cells in the bone defects and in the same time ensure space for new bone formation. Present study is focused on preparation of novel highly porous and electrically active TiO2-x ceramic scaffolds via polymer replica method. Scaffolds showed fully open and interconnected pore structure with porosity above 95%. Thermal treatment of the scaffolds under high vacuum conditions was realized to obtain nonstoichiometric TiO2-x scaffolds and as a result electrical conductivity significantly increased from similar to 10(-9) mS/m to similar to 40 mS/m. In vitro studies confirmed that scaffolds are cytocompatible and enhances cell spreading. Thus, TiO2-x scaffolds holds a potential to be used in bone tissue regeneration as an electrical stimuli supplier enhancing bone healing process. (C) 2016 Elsevier Ltd. All rights reserved.
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