Volume 1 Issue 1
March  2021
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Wentai Guo, Xiaocheng Wang, Chaoyu Yang, Rongkang Huang, Hui Wang, Yuanjin Zhao. Microfluidic 3D printing polyhydroxyalkanoates-based bionic skin for wound healing[J]. Materials Futures, 2022, 1(1): 015401. doi: 10.1088/2752-5724/ac446b
Citation: Wentai Guo, Xiaocheng Wang, Chaoyu Yang, Rongkang Huang, Hui Wang, Yuanjin Zhao. Microfluidic 3D printing polyhydroxyalkanoates-based bionic skin for wound healing[J]. Materials Futures, 2022, 1(1): 015401. doi: 10.1088/2752-5724/ac446b
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Microfluidic 3D printing polyhydroxyalkanoates-based bionic skin for wound healing

© 2022 The Author(s). Published by IOP Publishing Ltd on behalf of the Songshan Lake Materials Laboratory
Materials Futures, Volume 1, Number 1
  • Received Date: 2021-10-25
  • Accepted Date: 2021-12-16
  • Rev Recd Date: 2021-12-05
  • Publish Date: 2022-01-18
  • Biomimetic scaffolds with extracellular matrix (ECM)-mimicking structure have been widely investigated in wound healing applications, while insufficient mechanical strength and limited biological activity remain major challenges. Here, we present a microfluidic 3D printing biomimetic polyhydroxyalkanoates-based scaffold with excellent mechanical properties and hierarchical porous structures for enhanced wound healing. This scaffold is composed of poly(3-hydroxybutyrate-4-hydroxybutyrate) and polycaprolactone, endowing it with excellent tensile strength (2.99 MPa) and degradability (80% of weight loss within 7 d). The ECM-mimicking hierarchical porous structure allows bone marrow mesenchymal stem cells (BMSCs) and human umbilical vein endothelial cells (HUVECs) to proliferate and adhere on the scaffolds. Besides, anisotropic composite scaffolds loaded with BMSCs and HUVECs can significantly promote re-epithelization, collagen deposition and capillary formation in rat wound defects, indicating their satisfactory in vivo tissue regenerative activity. These results indicate the feasibility of polyhydroxyalkanoates-based biomimetic scaffolds for skin repair and regeneration, which also provide a promising therapeutic strategy in diverse tissue engineering applications.
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  • Author contributions

    YJZ conceived the idea and designed the experiment; WTG and XCW conducted experiments and data analysis; CYY conducted software and visualization; RKH collected resources, verification, and supervision; HW conducted project administration and funding acquisition; WTG, XCW, and YJZ wrote the manuscript.

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