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- W4386481803 abstract "Abstract Clostridioides difficile spores are considered as the major source responsible for the development of C . difficile infection (CDI), which is associated with an increased risk of death in patients and has become an important issue in infection control of nosocomial infections. Current treatment against CDI still relies on antibiotics, which also damage normal flora and increase the risk of CDI recurrence. Therefore, alternative therapies that are more effective against C . difficile bacteria and spores are urgently needed. Here, we designed an oxidation process using H 2 O 2 containing PBS solution to generate Cl − and peroxide molecules that further process Ag and Au ions to form nanoboxes with Ag–Au peroxide coat covering Au shell and AgCl core (AgAu‐based nanoboxes). The AgAu‐based nanoboxes efficiently disrupted the membrane structure of bacteria/spores of C . difficile after 30–45 min exposure to the highly reactive Ag/Au peroxide surface of the nano structures. The Au‐enclosed AgCl provided sustained suppression of the growth of 2 × 10 7 pathogenic Escherichia coli for up to 19 days. In a fecal bench ex vivo test and in vivo CDI murine model, biocompatibility and therapeutic efficacy of the AuAg nanoboxes to attenuate CDI was demonstrated by restoring the gut microbiota and colon mucosal structure. The treatment successfully rescued the CDI mice from death and prevented their recurrence mediated by vancomycin treatment. The significant outcomes indicated that the new peroxide‐derived AgAu‐based nanoboxes possess great potential for future translation into clinical application as a new alternative therapeutic strategy against CDI." @default.
- W4386481803 created "2023-09-07" @default.
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- W4386481803 date "2023-09-05" @default.
- W4386481803 modified "2023-10-16" @default.
- W4386481803 title "Novel metal peroxide nanoboxes restrain <scp><i>Clostridioides difficile</i></scp> infection beyond the bactericidal and sporicidal activity" @default.
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