SEARCH RESULT

Several kinds of biomaterials have been examined for bone regeneration and repair practices. Bioactive glass is one of the most preferred bone repair agents because of its excellent bioactivity property [1]. Recently, the incorporation of trace elements existing in the human body (e.g. aluminum (Al), calcium (Ca) etc.) to the bioactive glasses has received a significant amount of attention. Many studies have been performed on the incorporation of aluminum (Al) and magnesium (Mg) in the bioactive glass systems and it has been shown that the incorporation of these trace metallic elements has a significant effect on the bioactivity of glasses [2, 3, 4, 5]. In the literature reviews, commercial silica sources as tetraethyl orthosilicate [6, 7, 8], Belgian quartz sand [9] and silicon dioxide [10] have been used for bioactive glass production. However, there is a lack of information on the evaluation of waste silica sources for the production of bioactive glass. The purpose of this study was to investigate the in vitro bioactivity and biodegradation behaviour of magnesium (1%) and aluminum (1%) incorporated 45S5 melt-derived bioactive glasses prepared by use of rice hull biosilica. The behaviour of biosilica based samples was compared with that of its commercial silica-based counterparts. Sodium silicate solution was extracted from rice hull ash via alkali extraction according to the method of Yucel et al [11]. The bioactive glasses with the compositions are given in Table 1 were synthesized through the melting process according to a previous study [12].

International Symposium on Light Alloys and Composite Materials
UHAKS

Sevil Yücel Bilge Sema Tekerek Yeliz Elalmış Pınar Terzioğlu Burcu Karakuzu İkizler