Fig. 1From: Highly hydrophilic and dispersed TiO2 nano-system with enhanced photocatalytic antibacterial activities and accelerated tissue regeneration under visible lightFabrication and morphology of nanomaterials. a Schematic illustration of the preparation procedure. b–d TEM, HR-TEM and SEM images of nanomaterials. Scale bars are 50 nm for TEM, 2 nm for HR-TEM and1 µm for SEMBack to article page