SuperGold and SuperSilver substrates from ArrayIt Corp, Sunnyvale, Calif, are designed to bring quick, easy implementation and affordability to gold-surface and silver-surface based assays. Features include a 500 angstrom layer of pure gold or pure silver, a 2,000 angstrom gold or silver nanolayer thickness, and a corner chamfer for unambiguous functional side identification. An atomically flat glass substrate improves assay precision, while a chrome adhesion method allows for durability. Substrates measure 1 mm x 25 mm x 76 mm and are manufactured using a Class 1 cleanroom process, thereby preventing particle contamination. With antistatic, environment-proof packaging, the substrates arrive ready to use. For more information, visit Arrayit Corp.