Journal
BULLETIN OF MATERIALS SCIENCE
Volume 41, Issue 2, Pages -Publisher
INDIAN ACAD SCIENCES
DOI: 10.1007/s12034-018-1558-6
Keywords
Bioactive glass; alpha-calcium sulphate hemihydrate; composite; bioactivity; cytocompatibility
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Funding
- Doctoral Program of North Sichuan Medical College [CBY16-QD-02]
- North Sichuan Medical College Scientific Research and Development Projects [CBY16-A-ZD02]
- key project of 'Western Light' Foundation of Chinese Academy of Sciences
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To combine the self-setting property of a-calcium sulphate hemihydrate (alpha-CSH) with the bioactive property of bioactive glass (BG), BG was added into alpha-CSH to prepare alpha-CSH/BG composites. The in vitro bioactivity and cytocompatibility of the alpha-CSH/BG composites were assessed by soaking the composites in simulated body fluid (SBF) and co-culturing with the osteoblasts, respectively. Formation of a bone-like apatite layer on the composite surface was studied by X-ray diffraction (XRD), Fourier transform infrared spectrometry (FTIR), scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS). Variations in ionic concentration and pH of the SBF solution were detected. The incorporation of BG into alpha-CSH, effectively compensated for the pH decrease caused by the dissolution of alpha-CSH and the ion exchange. Osteoblast-like cells (MG63) were cultured on the samples, and theMTTresults confirmed that the composites containing BG were more favourable for the proliferation of these cells. Hence, alpha-CSH/ BG composites might have great potential for the use as a bone regeneration material.
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