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Diabetic wounds, as a complication of diabetes, are slow to heal and seriously affect the quality of life of patients. Functional hydrogel dressing is an effective approach to improve diabetic wound healing. Electrical stimulation (ES) therapy is conducive to promoting cell migration and wound healing. In this work, a multifunctional PPTZ hydrogel wound dressing was developed by freeze-thaw method with polyvinyl alcohol (PVA), phytic acid (PA), tannic acid (TA), and Zinc chloride. The obtained PPTZ hydrogel has good mechanical properties (stress and strain of 700.03 kPa and 575.08%), light transmittance (close to 100%) and antibacterial rate (over 75%). With good biocompatibility, antioxidant abilities and conductivity, the PPTZ hydrogel could effectively promote the healing of diabetic wounds with two weeks under the action of electric field, which provides an auxiliary treatment strategy for diabetic patients.
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