articleAdvanced ScienceMar 10, 2022GOLD OA

Polydopamine Decorated Microneedles with Fe‐MSC‐Derived Nanovesicles Encapsulation for Wound Healing

China Pharmaceutical University · Nanjing Drum Tower Hospital · +2 more institutions

PubMed
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Abstract

Wound dressing with the capacities of antioxidation, antiinflammation, and efficient angiogenesis induction is expected for effectively promoting wound healing. Herein, a novel core-shell hyaluronic acid (HA) microneedle (MN) patch with ferrum-mesenchymal stem cell-derived artificial nanovesicles (Fe-MSC-NVs) and polydopamine nanoparticles (PDA NPs) encapsulated in the needle tips is presented for wound healing. Fe-MSC-NVs containing multifunctional therapeutic cytokines are encapsulated in the inner HA core of the MN tips for accelerating angiogenesis. The PDA NPs are encapsulated in the outer methacrylated hyaluronic acid (HAMA) shell of the MN tips to overcome the adverse impacts from reactive oxygen…

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