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A routine treatment combining surgical debridement with anti\u2010infection therapy is widely used for treating DUs in the clinic, but hardly offers a satisfying wound healing outcome. It is known that a long\u2010term antibiotic treatment may also lead to the drug resistance of pathogens. To address these challenges, new strategies combining both reactive oxygen species (ROS) scavenging and bacterial sterilization have been proposed for fighting against DUs. Following this idea, oxygen deficient molybdenum\u2010based nanodots (MoO<jats:sub>3\u2212<\/jats:sub><jats:italic><jats:sub>X<\/jats:sub><\/jats:italic>) for healing the DUs are reported. The ROS scavenging ability of MoO<jats:sub>3\u2212<\/jats:sub><jats:italic><jats:sub>X<\/jats:sub><\/jats:italic> nanodots is investigated and the antibacterial property of the nanodots is also demonstrated. The systematic cell and animal experimental results indicate that the MoO<jats:sub>3\u2212<\/jats:sub><jats:italic><jats:sub>X<\/jats:sub><\/jats:italic> nanodots can effectively reduce inflammation, promote epithelial cell regeneration, accelerate angiogenesis, and facilitate DUs recovery. Most importantly, they present excellent capacity to diminish infection of methicillin\u2010resistant <jats:italic>Staphylococcus aureus<\/jats:italic>, manifesting the potent application prospect of MoO<jats:sub>3\u2212<\/jats:sub><jats:italic><jats:sub>X<\/jats:sub><\/jats:italic> nanodots for diabetic wound therapy.<\/jats:p>","DOI":"10.1002\/smll.202107137","type":"journal-article","created":{"date-parts":[[2021,12,20]],"date-time":"2021-12-20T05:15:04Z","timestamp":1639977304000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":56,"title":["Healing Diabetic Ulcers with MoO<sub>3\u2212<\/sub><i><sub>X<\/sub><\/i> Nanodots Possessing Intrinsic ROS\u2010Scavenging and Bacteria\u2010Killing Capacities"],"prefix":"10.1002","volume":"18","author":[{"given":"Guangxin","family":"Duan","sequence":"first","affiliation":[{"name":"Center for Molecular Imaging and Nuclear Medicine State Key Laboratory of Radiation Medicine and 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