This invention relates to the field of oral care products technology, specifically to an
artificial enzyme with antibacterial properties, its preparation method, and its application. This technical solution employs a
chemical reduction method, where a
palladium source reacts in an environment containing surfactants and reducing agents to obtain
palladium nanozymes. The obtained
palladium nanozymes exhibit uniform morphology, controllable particle size, good dispersibility in water, and good
biocompatibility; they have no significant toxic side effects on human gingival fibroblasts, possess highly efficient
catalase activity, and demonstrate strong antibacterial and bactericidal effects against oral pathogens, significantly reducing bacterial
drug resistance; they can inhibit
acid production by oral
bacteria, preventing tooth decay; and they retain their original catalytic activity even after multiple cycles of use. Applying the palladium nanozymes of this solution to the manufacture of oral care products can solve the technical problems of unsatisfactory safety and easy development of
drug resistance in existing oral care products using antibacterial and anti-caries methods, showing promising application prospects.