Samarium Oxide 99% – 50nm
Selenium (Se) 99.9% – <80nm
Silicon Carbide (SiC) 99.0+% – 40nm
Silicon Carbide (SiC) 99% – 50nm
Silicon Carbide (SiC) 99% – Less than 80nm
Silicon Nitride (Si3N4) 99% – 20nm
Silicon Nitride (Si3N4) 99+% – 15-30nm
Silicon Oxide Porous (SiO2) 99.5+% – 15-20nm
Silicon Dioxide non -porous (SiO2) 99.5% – 20nm
Silicon Dioxide Hydrophobic 99.8% – 20-30nm
Silicon Dioxide Hydrophilic 99.8% – 20-30nm
Silicon Dioxide 95.9+% – 20-30nm
Silver (Ag) 10,000 PPM Solution – 20nm
Silver (Ag) 99.9% – 10nm
Silver (Ag) 99.99% – 20nm
Silver (Ag) 99.95% – 20-30nm
Silver (Ag) 99.99% – 50nm
Silver (Ag) 99.9% – 50-60nm
Silver (Ag) 99.9% – 80nm
Metal Anti-Microbial Silver (Ag) 99.99% – 80nm
PVP Coated Silver (Ag) 99.99% – 20nm – (30-50nm) – (50-80nm)
Silver Oxide (Ag2O) 99.9% – 50nm 
Silicon Dioxide treated with silane coupling agent (SiO2) 99% – 10~30nm 
Silicon Dioxide (SiO2) 99.5% – 20nm 
Silicon Dioxide (SiO2) >99.9% – 30-50nm 
Silver Oxide (Ag2O) 99.9% – 50nm 
Silver Oxide (Ag2O) 99.9% – 50nm 
Strontium Titanate (SrTiO3) 99.95% – 100nm
Sulfur (S) 99.99% – 47nm