An organosilane route to mesoporous silica nanoparticles with tunable particle and pore sizes and their anticancer drug delivery behavior

Uniform mesoporous silica nanospheres were synthesized using organosilane as a template. By adjusting the water/ethanol ratio and the amount of the silica precursors, the pore and particle sizes can be tuned in a certain range. The materials show a sustained and pH-sensitive drug release property and a comparable antitumor efficacy.