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Physicochemical Properties and Biocompatibility of Tricalcium and Dicalcium Silicate Composite Cements after Hydration
Author(s) -
Liu Weining,
Chang Jiang,
Yue Zhou
Publication year - 2011
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2011.02635.x
Subject(s) - materials science , biocompatibility , simulated body fluid , apatite , composite number , compressive strength , slurry , chemical engineering , cement , composite material , metallurgy , scanning electron microscope , engineering
Silicate composite cements (SCC) composed of Ca 3 SiO 5 and Ca 2 SiO 4 at various proportions were explored with the evaluation of their physicochemical properties and in vitro biocompatibility after hydration. SCC revealed better strength and shorter setting time than pure Ca 3 SiO 5 or Ca 2 SiO 4 . The optimal composite with 20 wt% Ca 2 SiO 4 at the liquid‐to‐powder ratio of 0.5 mL/g was determined for being workable slurries, whose compressive strength achieved 26.4 MPa after one day and 54.1 MPa after 28 days. Furthermore, hydration products of SCC could induce the formation of apatite layer on the surface in simulated body fluid and were compatible with osteoblast‐like cells. Thus, SCC have the potential to be self‐setting bone‐repairing materials.