XPS data depicting stability of anti-E. coli covalently grafted to amine-terminated diamond and amine-terminated glass substrates, and similar data after storage for 14 d in buffer solution at 37 °C. A) Carbon, Nitrogen, and Sulfur data for anti-E. coli on UNCD diamond thin-film. B) Carbon, Nitrogen, and Silicon data for anti-E. coli on glass.