Chitosan-pluronic based Cu nanocomposite hydrogels for prototype antimicrobial applications.

Int J Biol Macromol

Laboratory of Materials Science, Instituto de Química de Recursos Naturales, Universidad de Talca, 747, Talca, Chile. Electronic address:

Published: January 2020

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.

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http://dx.doi.org/10.1016/j.ijbiomac.2019.09.143DOI Listing

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