*2*.*3*. *Characterization of Coatings*

In performing the UVA test, 1 mg of Ag nanomaterials, SnO2 nanomaterials, SnO2-Ag composite nanomaterials, Ag powder, and SnO2 powder were each mixed with 3mL of laminating fluid. Clean glass substrates were then coated with the nanomaterials-laminating fluid mixtures via the drip method. The UV optical properties of the coated glass slides were examined using the PASCO UVA light sensor in conjunction with an OMNI PAR 38 Flood 120 W lamp light source.
