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Direct Cytotoxicity Evaluation of 63S Bioactive Glass and Bone-Derived Hydroxyapatite Particles Using Yeast Model and Human Chondrocyte Cells by Microcalorimetry Publisher Pubmed



Doostmohammadi A1, 2 ; Monshi A1 ; Fathi MH1 ; Karbasi S3 ; Braissant O4 ; Daniels AU4
Authors
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Authors Affiliations
  1. 1. Biomaterials Group, Materials Engineering Department, Isfahan University of Technology, Isfahan 84156-83111, Iran
  2. 2. Isfahan University of Medical Sciences, Isfahan 81746-73461, Iran
  3. 3. Medical Physics and Biomedical Engineering Group, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
  4. 4. Laboratory of Biomechanics and Biocalorimetry, Faculty of Medicine, University of Basel, Basel, Switzerland

Source: Journal of Materials Science: Materials in Medicine Published:2011


Abstract

In this study, the cytotoxicity evaluation of prepared 63S bioactive glass and bone-derived hydroxyapatite particles with yeast and human chondrocyte cells was carried out using isothermal micro-nano calorimetry (IMNC), which is a new method for studying cell/biomaterial interactions. Bioactive glass particles were made via sol-gel method and hydroxyapatite was obtained from bovine bone. Elemental analysis was carried out by XRF and EDXRF. Amorphous structure of the glass and completely crystalline structure of HA were detected by XRD analysis. Finally, the cytotoxicity of bioactive glass and bone-derived HA particles with yeast and cultured human chondrocyte cells was evaluated using IMNC. The results confirmed the viability, growth and proliferation of human chondrocyte cells in contact with 63S bioactive glass, and bone-derived HA particles. Also the results indicated that yeast model which is much easier to handle, can be considered as a good proxy and can provide a rapid primary estimate of the ranges to be used in assays involving human cells. All of these results confirmed that IMNC is a convenient method which caters to measuring the cell-biomaterial interactions alongside the current methods. © Springer Science+Business Media, LLC 2011.
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