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Polypropylene-nanodiamond composite for hernia mesh.

Shadi Houshyar1, Avik Sarker1, Amit Jadhav2

  • 1School of Engineering, College of Science, Engineering and Health, RMIT University, Melbourne 3001, Australia.

Materials Science & Engineering. C, Materials for Biological Applications
|April 14, 2020
PubMed
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This summary is machine-generated.

This study enhances polypropylene (PP) hernia mesh by incorporating nanodiamond (ND). The new PP-ND mesh shows improved mechanical properties and reduced foreign body reactions, offering a promising future for hernia repair.

Area of Science:

  • Biomaterials Science
  • Nanotechnology
  • Medical Engineering

Background:

  • Polypropylene (PP) is a common material for hernia mesh due to its properties.
  • However, PP meshes can degrade, cause foreign body reactions, and adhere to tissues, leading to complications.
  • Tissue infiltration (remodeling) reduces mesh strength and increases infection risk.

Purpose of the Study:

  • To address the limitations of traditional PP hernia mesh.
  • To improve mechanical properties, biocompatibility, and reduce adverse tissue interactions.
  • To investigate the potential of nanodiamond (ND) incorporation and surface functionalization.

Main Methods:

  • Incorporation of nanodiamond (ND) into polypropylene (PP) filaments.
  • Plasma treatment of PP-ND mesh followed by coating with hydroxylated ND.
Keywords:
Biomedical materialsHernia meshNanocoatingNanocomposite fibreNanodiamondPolypropyleneProtein absorption

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  • Evaluation of mechanical properties (dynamic modulus, flexibility).
  • Assessment of protein adsorption and in-vitro cell adhesion studies.

    • Main Results:

    • PP-ND mesh demonstrated significantly increased dynamic modulus without loss of flexibility.
    • Hydroxylated ND coating reduced nonspecific protein adsorption, crucial for preventing foreign body reactions.
    • Functionalized ND-coated PP-ND mesh showed enhanced mammalian cell adhesion and elongated morphology, indicating improved biocompatibility.

    Conclusions:

    • Nanodiamond-coated nanocomposite mesh is a promising candidate for advanced hernia repair.
    • The enhanced properties suggest reduced risks of foreign body reaction and tissue adhesion.
    • Further research is needed to fully validate its clinical efficacy for hernia repair.