Gelatin-functionalized mesoporous silica nanoparticles with sustained release properties for intracameral pharmacotherapy of glaucoma

Herein, pilocarpine-loaded gelatin-covered mesoporous silica nanoparticles (denoted as p/GM) were intracamerally administrated into the anterior chamber for the reduction of intraocular pressure (IOP). The in vitro release profile shows that p/GM demostrates a high release percentage (50%) with a long-lasting release profile (36 days). The in vivo studies showed the maintenance of IOP in eye with ocular hypertension for 21 days.