silicon dioxide 64 article 54 Silica 30 priority journal 26 adsorption 22 Silicon Dioxide 20 chemical structure 16 Adsorption 14 Sol-gels 14 nanoparticle 14 nonhuman 14 surface property 14 synthesis 14 unclassified drug 14 Nanoparticles 12 Sol-gel 12 chemistry 12 porosity 12 gold 10 polymerization 10 water 10 Article 8 Gold 8 Mesoporous materials 8 Nanostructures 8 Polymers 8 Surface Properties 8 catalysis 8 controlled study 8 electrolyte 8