Gas generators Singlet oxygen generation 8 Oxygen 6 Nanoparticles 4 Photophysics 4 Silicon 4 Silicon nanoparticles 4 Singlet oxygen 4 Synthesis (chemical) 4 Zinc 4 Zinc compounds 4 Zinc(II) phthalocyanines 4 4-Nitrophthalonitrile 2 Activation analysis 2 Adamantane 2 Adsorption 2 Amines 2 Anaerobic conditions 2 Anodic oxidation 2 Aqueous solutions 2 Aqueous suspensions 2 Bending (deformation) 2 Blue photoluminescence 2 Bolivia 2 Bolivian Subandean zone 2 Cell death 2 Clinical trial 2 Comparative studies 2 Crystal structure 2 Deformation 2