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The Extracellular Matrix01:42

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Multifunctional Bone Regeneration Membrane with Flexibility, Electrical Stimulation Activity and Osteoinductive

Shihao Zhang1, Lei Huang2, Mengxuan Bian2

  • 1The Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Engineering Research Center for Biomedical Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China.

Small (Weinheim an Der Bergstrasse, Germany)
|August 16, 2024
PubMed
Summary

This study introduces a new multifunctional membrane for bone regeneration. The P/T/MXene membrane combines elasticity, electrical stimulation, and osteoinductive properties to effectively promote bone defect repair.

Keywords:
bioactive materialbone regenerationelectrical stimulationosteoinductive activity

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Regenerative Medicine

Background:

  • Guided bone regeneration (GBR) is crucial for repairing critical-sized bone defects.
  • Existing GBR membranes often lack multifunctionality for optimal bone regeneration.
  • Developing advanced membranes with integrated features is essential for improved clinical outcomes.

Purpose of the Study:

  • To develop a multifunctional, nano-absorbable composite membrane for enhanced bone regeneration.
  • To investigate the synergistic effects of electrical stimulation (ES), osteoinductive particles, and conductive nanomaterials on bone repair.
  • To evaluate the in vitro and in vivo efficacy of the developed membrane for guided tissue regeneration.

Main Methods:

  • Fabrication of a Poly(lactic acid-carbonate) (PDT) composite nano-absorbable membrane doped with β-TCP particles and MXene nanomaterials (P/T/MXene) using electrostatic spinning.
  • In vitro assessment of the membrane's effect on bone marrow mesenchymal stem cell (BMSC) recruitment and osteogenic differentiation under ES.
  • In vitro evaluation of the membrane's impact on endothelial cell angiogenic capacity.
  • In vivo testing of the P/T/MXene membrane in a rat cranial bone defect model.

Main Results:

  • The P/T/MXene membrane exhibited desirable properties including temperature sensitivity, elastic memory, and a coordinated degradation profile.
  • In vitro studies demonstrated enhanced BMSC osteogenic differentiation and endothelial cell angiogenesis under ES.
  • In vivo experiments confirmed significant bone regeneration in cranial defects treated with the P/T/MXene membrane.
  • Synergistic effects of the membrane's components and ES promoted bone regeneration via neovascularization.

Conclusions:

  • The developed P/T/MXene membrane effectively promotes bone regeneration through synergistic multifunctional effects.
  • The membrane's combination of flexible elasticity, ES, and osteoinductive activity shows great potential for guided tissue regeneration.
  • This study provides valuable insights for designing advanced biomaterials for bone defect repair.