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Multifunctional Electrospun Textiles for Wound Healing.

Guopu Chen1, Jie Hu2, Zhiwu Hong1

  • 1Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China.

Journal of Biomedical Nanotechnology
|June 18, 2022
PubMed
Summary
This summary is machine-generated.

This study introduces a new electrospun textile combining kaolinite and silver nanoparticles (AgNps) to accelerate wound healing. The material aids in blood clotting, combats microbes, and promotes tissue regeneration for abdominal wall defects.

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Area of Science:

  • Biomaterials Engineering
  • Nanotechnology
  • Regenerative Medicine

Background:

  • Wound healing requires effective management of bleeding, infection, and tissue regeneration.
  • Traditional wound dressings often lack multifunctional capabilities to address these complex needs.
  • Developing advanced materials that integrate therapeutic agents is crucial for improved patient outcomes.

Purpose of the Study:

  • To fabricate and characterize a novel multifunctional electrospun textile incorporating kaolinite and silver nanoparticles (AgNps) for enhanced wound healing.
  • To investigate the wound healing capabilities of the developed textile in a full-thickness abdominal wall defect model.
  • To elucidate the mechanisms by which kaolinite and AgNps contribute to the therapeutic effects.

Main Methods:

  • Fabrication of polyurethane (PU) electrospun textiles loaded with kaolinite nanosheets and AgNps via electrostatic spinning.
  • In vitro assessment of material properties and antimicrobial activity of AgNps.
  • In vivo evaluation of the textile's efficacy in promoting wound healing in a full-thickness abdominal wall defect model, assessing parameters like inflammation, collagen deposition, angiogenesis, and epithelization.

Main Results:

  • The electrospun textile provided a suitable 3D framework for kaolinite and AgNps.
  • Kaolinite accelerated plasma absorption and coagulation, aiding in bleeding control.
  • AgNps demonstrated potent antimicrobial activity against microbes, with controlled release preventing toxicity.
  • The multifunctional textile significantly accelerated wound healing by reducing inflammation and promoting tissue regeneration, including collagen deposition, angiogenesis, and epithelization in abdominal wall defects.

Conclusions:

  • The novel kaolinite and AgNps-loaded electrospun textile is a promising multifunctional material for advanced wound healing applications.
  • The synergistic action of kaolinite and AgNps effectively addresses key challenges in wound management, including hemostasis, infection control, and tissue repair.
  • This technology holds potential for treating complex wounds, such as full-thickness abdominal wall defects, by restoring physiological environment and promoting regeneration.