Chitosan-pluronic based Cu nanocomposite hydrogels for prototype antimicrobial applications

Int J Biol Macromol. 2020 Jan 15:143:825-832. doi: 10.1016/j.ijbiomac.2019.09.143. Epub 2019 Nov 9.

Abstract

Copper nanoparticles were synthesized via precipitation technique using the pseudonatural cationic chitosan biopolymer as a stabilizing agent. The nanoparticles developed were successfully incorporated into the 1:1 ratio of blended chitosan: pluronic F127 polymer solution and made their nanocomposite hydrogels by solution casting method. The formed copper-based nanocomposite hydrogels were characterized by using Fourier transform infrared spectroscopy, thermogravimetric analysis, X-ray diffraction, scanning electron microscopy-energy dispersive spectroscopy and transmission electron microscopy studies. The antimicrobial activity of the fabricated nanocomposite hydrogels was tested via an inhibition zone process against both E. coli (gram-negative) and S. aureus (gram-positive) bacteria. The results conveyed that the copper-embedded chitosan-pluronic\ F127 nanocomposite hydrogels can be used effectively for antimicrobial applications as well as for wound care applications.

Keywords: Chitosan; Copper nanoparticles; Nanocomposite hydrogels.

MeSH terms

  • Anti-Infective Agents / chemistry*
  • Anti-Infective Agents / pharmacology*
  • Chemical Phenomena
  • Chemistry Techniques, Synthetic
  • Chitosan / chemistry*
  • Copper / chemistry*
  • Escherichia coli / drug effects
  • Metal Nanoparticles / chemistry
  • Microbial Sensitivity Tests
  • Nanocomposites / chemistry*
  • Nanocomposites / ultrastructure
  • Nanogels / chemistry*
  • Spectroscopy, Fourier Transform Infrared
  • Thermogravimetry
  • X-Ray Diffraction

Substances

  • Anti-Infective Agents
  • Nanogels
  • Copper
  • Chitosan