PDA/Cu Bioactive Hydrogel with "Hot Ions Effect" for Inhibition of Drug-Resistant Bacteria and Enhancement of Infectious Skin Wound Healing
PDA/Cu Bioactive Hydrogel with "Hot Ions Effect" for Inhibition of Drug-Resistant Bacteria and Enhancement of Infectious Skin Wound Healing
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具有“热离子效应”的 PDA/Cu 生物活性水凝胶可抑制耐药细菌并促进感染性皮肤伤口愈合
DOI：
10.1021/acsami.0c08890
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发表时间：
2020
影响因子：
9.5
通讯作者：
Chang Jiang
中科院分区：
文献类型：
--
作者：
Xu Qing;Chang Mengling;Zhang Yu;Wang Endian;Xing Min;Gao Long;Huan Zhiguang;Guo Feng;Chang Jiang
Quick and effective sterilization of drug-resistant bacteria inevitably became an ever-growing global challenge. In this study, a multifunctional composite (PDA/Cu-CS) hydrogel mainly composed of polydopamine (PDA) and copper-doped calcium silicate ceramic (Cu-CS) was prepared. It was confirmed that PDA/copper (PDA/Cu) complexing in the composite hydrogel played a key role in enhancing the photothermal performance and antibacterial activity. Through a unique “hot ions effect”, created by the heating of Cu ions through the photothermal effect of the composite hydrogel, the hydrogel showed high-efficiency, quick, and long-term inhibition of methicillin-resistantStaphylococcus aureusandEscherichia coli. In addition, the hydrogel possessed remarkable bioactivity to stimulate angiogenesis. The in vivo results confirmed that the “hot ions effect” of the composite hydrogel removed existing infection in the wound area efficiently and significantly promoted angiogenesis and collagen deposition during infectious skin wound healing. Our results suggested that the design of multifunctional hydrogels with “hot ions effect” may be an effective therapeutic approach for the treatment of infectious wounds.
