Contact biocides are a relatively new form of infection-resistant materials
. Surfacine is a silver based antimicrobial coating that can be immobilized
on the surface of most alloplastic materials used to fabricate devices. It
exhibits broad-spectrum antimicrobial activity exclusively at the surface
without elution and does not induce antimicrobial activity in contacting fl
uids such as urine regardless of volume. Because it is permanently immobili
zed on the material surface, the coating is nontoxic to cells and is not an
ticipated to exhibit immunogenicity, teratogenicity, or carcinogenicity.