Wear resistance; Silver; Antimicrobial; Wear resistance; Attachment and adhesion;Stainless steel; Plasma nitriding; active screen plasma; E. coli; S. epidermidis; MRSA; cells;Long-lasting; Durability; Cytocompatibility; Killing rate; Contact angle; Surface free energy; EDS/WDS; TEM; Corrosion resistance; Hardness; Coating; Hydrophobicity; S-phase