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- W2934580730 abstract "Notorious bacterial biofilms are becoming severe threats to public health worldwide. As the important component in biofilm extracellular polymeric substances (EPS), extracellular DNA (eDNA) has been manifested to connect different EPS components and bacteria together, leading biofilms hard to eliminate. Herein a series of MOF/Ce-based nanozymes with deoxyribonuclease (DNase) and peroxidase mimetic activities have been designed and synthesized for combating biofilms. The cerium (IV) complexes (DNase mimics) are capable of hydrolyzing eDNA and disrupting established biofilms, while the MOF with peroxidase-like activity can kill bacteria exposed in dispersed biofilms in the presence of H2O2. This can avoid the recolonization of bacteria and recurrence of biofilms. Given the fact that single-modal antibacterial agent is difficult to drastically eradicate biofilms, the marriage of two kinds of nanozymes is a rational strategy to acquire enhanced performance in combating biofilms. Besides, the utilization of nanozymes circumvents drawbacks of natural enzymes which are costly and vulnerable. Further studies have demonstrated that this kind of artificial enzyme with dual enzyme-mimetic activities can penetrate the biofilms, and inhibit bacterial biofilm formation intensively. Consistently, in vivo anti-biofilm application in treating subcutaneous abscess exhibits commendable wound healing and admirable bactericidal effect. To the best of our knowledge, it is the first time to devise an integrated nanozyme based on the peroxidase-like activity of MOF to eliminate biofilms and kill bacteria on site. This work may promote the application of MOF in the antibacterial field." @default.
- W2934580730 created "2019-04-11" @default.
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- W2934580730 date "2019-07-01" @default.
- W2934580730 modified "2023-10-16" @default.
- W2934580730 title "A series of MOF/Ce-based nanozymes with dual enzyme-like activity disrupting biofilms and hindering recolonization of bacteria" @default.
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- W2934580730 doi "https://doi.org/10.1016/j.biomaterials.2019.04.007" @default.
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