Wound dressing from polyvinyl alcohol/chitosan electrospun fiber membrane loaded with OH-CATH30 nanoparticles

Carbohydr Polym. 2020 Mar 15:232:115786. doi: 10.1016/j.carbpol.2019.115786. Epub 2019 Dec 28.

Abstract

Novel nanomaterials have been developed for antimicrobial and wound healing applications. Here, we report the preparation of a polyvinyl alcohol/chitosan (PVA/CS) nanofiber with carboxymethyl chitosan nanoparticles (CMCS-OH30 NPs) encapsulating the antibacterial peptide OH-CATH30 (OH-30). The PVA/CS nanofibers containing OH-30 NPs (NP-30-NFs) obtained via electrospinning could achieve a secondary embedded OH-30. The effect of NP-30-NFs on the release of OH-30 was investigated through high-performance liquid chromatography. The antibacterial activities of NP-30-NFs against Escherichia coli and Staphylococcus aureus were studied by bacterial plate counting. NP-30-NFs containing different concentrations of NPs were applied to mouse skin wounds to determine their effectiveness in promoting wound healing. Results showed that NP-30-NFs exhibited antibacterial properties and promoted skin wound healing.

Keywords: Nanofibers; Nanoparticles; OH-CATH30; PVA; Wound healing.

MeSH terms

  • Animals
  • Anti-Bacterial Agents / administration & dosage
  • Anti-Bacterial Agents / chemistry
  • Anti-Bacterial Agents / pharmacology*
  • Antimicrobial Cationic Peptides / administration & dosage
  • Antimicrobial Cationic Peptides / chemistry
  • Antimicrobial Cationic Peptides / pharmacology*
  • Chitosan / administration & dosage
  • Chitosan / chemistry
  • Chitosan / pharmacology*
  • Dose-Response Relationship, Drug
  • Escherichia coli / drug effects
  • Female
  • Injections, Intraperitoneal
  • Mice
  • Mice, Inbred Strains
  • Microbial Sensitivity Tests
  • Nanofibers / administration & dosage
  • Nanofibers / chemistry*
  • Nanoparticles / administration & dosage
  • Nanoparticles / chemistry
  • Particle Size
  • Polyvinyl Alcohol / administration & dosage
  • Polyvinyl Alcohol / chemistry
  • Polyvinyl Alcohol / pharmacology*
  • Staphylococcus aureus / drug effects
  • Structure-Activity Relationship
  • Surface Properties
  • Wound Healing / drug effects*

Substances

  • Anti-Bacterial Agents
  • Antimicrobial Cationic Peptides
  • Polyvinyl Alcohol
  • Chitosan