According to medical scientific research, silver is a natural antibiotic, which can kill more than 650 kinds of bacteria and viruses, while ordinary antibiotics can only kill about 6 kinds of pathogens; Among all metals, silver has the strongest bactericidal ability. Its bactericidal ability was discovered and applied by human beings thousands of years ago, and it was widely used in daily life, especially as tableware for princes and nobles. The bactericidal effect of pure silver is formed by the following reaction between silver and cells: 1, bacterial protease reaction.

According to scientific research, more than 99% of harmful bacteria are unicellular, and unicellular bacteria must rely on the oxidation of oxygen metabolizing enzymes to breathe. Silver reacts with sulfhydryl group in bacterial protease, and protease quickly loses its activity, resulting in bacteria being killed because it cannot metabolize energy. 2.DNA binding

Silver can combine with the DNA base of pathogen, and the silver combined with DNA base forms cross-linking with each other, replacing the hydrogen bond between adjacent nitrogen in purine and pyrimidine, which leads to the structural degeneration of bacterial DNA and inhibits DNA replication, thus leading to the inability of bacteria to divide and reproduce and inactivation of bacteria. 3. Sulfhydryl binding: During chronic injury, the activity of metalloproteinases (MMP) in the wound is enhanced, and the MMP structure contains sulfhydryl groups. Excessive MMP activity will destroy growth factors and new tissues and hinder healing. Silver can combine with sulfhydryl groups in MMP structure, thus reducing excessive MMP activity, promoting tissue repair and regeneration, and reducing scar formation. It is also reported that silver can increase the calcium content on the wound surface, and calcium can accelerate epithelial regeneration. In addition, it has been reported that silver can increase white blood cells.