Panjian Li

TL;DR: Pure soluble silica prepared by a sol-gel method induced bone-like hydroxyapatite formation onto its surface when the silica was immersed in a simulated body fluid (SBF), whereas silica glass and quartz did not, which directly supports the hypothesis that hydrated silica plays an important role in biologically active hydroxyic acid formation on the surfaces of bioactive glasses and glass-ceramics, which leads to bone-bonding.

TL;DR: In this paper, a pure hydrated silica gel can induce apatite formation on its surface in simulated body fluid when its starting pH is increased from 7.2 to 7.4.

TL;DR: Gel-derived titania coating on commercial pure (c.p.) titanium induces hydroxyapatite formation onto its surface from a simulated body fluid (SBF), a metastable calcium phosphate solution as mentioned in this paper.

TL;DR: The results indicate that hydrated titania gel is able to generate calcium phosphate by intake of calcium and phosphate from the surrounding solution and sol-gel prepared titania is probably bioactive.

TL;DR: In this article, the process of apatite formation on silica gel was investigated by means of thin-film X-ray diffraction, Fourier-transformed infrared reflection spectroscopy and scanning electron microscopic observation of the surface of the silica, as well as the measurement of changes in the ion concentration of the fluid.