CD47 and infection: 9.To effectively deliver nanozymes to subcutaneous infection sites, surface functional modification, such as attaching polyethylene glycol or CD47 to nanozyme surfaces and coating nanozymes with cell membranes extracted from patients, can enhance efficient nanozyme accumulation at the infection site, effectively reduce non-specific protein adsorption, and avoid capture by the mononuclear phagocytic cell system [30].