Welcome to the Glass Age

54 Figure 3.11. Confocal fluorescence images of human bone marrow derived stem cells following 24 h exposure to 80 nm bioactive glass spherical nanoparticles containing 10 mol% strontium (red: cytoplasm; blue: nucleus; green: nanoparticles). Scale bar is 75 µm. Source: Modified from Naruphontjirakul et al. [17].