Metal ions, not metal-catalyzed oxidative stress, cause clay leachate antibacterial activity.
Aqueous leachates prepared from natural antibacterial clays, arbitrarily designated CB-L, release metal ions into suspension, have a low pH (3.4-5), generate reactive oxygen species (ROS) and H2O2, and have a high oxidation-reduction potential.To isolate the role of pH in the antibacterial activity of CB clay mixtures, we coleman powermate air tool