silicon dioxide article 52 Silica 28 priority journal 24 adsorption 22 Silicon Dioxide 18 chemical structure 16 Adsorption 14 nanoparticle 14 surface property 14 synthesis 14 unclassified drug 14 Nanoparticles 12 Sol-gels 12 chemistry 12 nonhuman 12 porosity 12 Sol-gel 10 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