The invention discloses an anti-
biofilm material grafted with high-density acid groups for catalyzing bacterium
cracking, and a preparation method and an application thereof. The preparation method comprises the following steps: activating a material by using
plasma to make the material generate surface free radicals; and exposing the material to air to generate
active oxygen reaction centers, adding the material into an excessive amount of an
acid group-containing
unsaturated monomer, starting a surface
polymerization reaction, and cleaning and
drying the obtained material after the reactionis finished in order to obtain the anti-
biofilm material with the surface being grafted with the high-density acid groups for catalyzing bacterium
cracking. The high-density acid groups grafted on thesurface of the obtained material can generate superhydrophilic
surface energy to catalyze the bacterium
cracking in order to make the material have an antibacterial function, especially an anti-
biofilm function, and the material adopts a bacterial
lipid film as the target spot.
Quaternary ammonium salts,
metal ions and other antibacterial agents having large biotoxicity and being unfriendly to the environment are not used in the invention, so the material can be widely applied. Antibiotic embedding is avoided, and the risks of
drug resistance, generation of super
bacteria and emergency and out-of-control of epidemic diseases are reduced.