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As the only bioactive material that can bond with both hard tissues and soft   tissues, bioactive glass has become much important in the field of tissue   engineering. 13-93 bioactive glass scaffolds were fabricated via selective   laser sintering (SLS). It was focused on the effects of laser sintering on   microstructure and mechanical properties of the scaffolds. The experimental   results showed that the sintered layer gradually became dense with the laser   power increasing and then some defects occurred, such as macroscopic caves.   The optimum compressive strength and fracture toughness were 21.43±0.87 MPa   and 1.14±0.09 MPa.m1/2, respectively. In vitro bioactivity showed that there   was the bone-like apatite layer on the surface of the scaffolds after soaking   in simulated body fluid (SBF), which was further evaluated by Fourier   transform infrared spectroscopy (FTIR). Moreover, cell culture study showed   MG-63 cells adhered and spread well on the scaffolds, and proliferated with   increasing time in cell culture. These indicated excellent bioactivity and   biocompatibility of nano 13-93 glass scaffolds

Laser sintering of nano 13-93 glass scaffolds: Microstructure, mechanical properties and bioactivity