Obtaining medical textiles based on viscose and chitosan/zinc nanoparticles with improved antibacterial properties by using a dielectric barrier discharge Articles uri icon

authors

  • KORICA, MATEA D.
  • KRAMAR, ANA
  • PERŠIN FRATNIK, ZDENKA
  • OBRADOVIC, BRATISLAV
  • KURAICA, MILORAD M.
  • DOJCINOVIC, BILJANA
  • ZEMLJIC, LIDIJA FRAS
  • KOSTIĆ, MIRJANA

publication date

  • October 2022

start page

  • 1

end page

  • 16

issue

  • 19, 4152

volume

  • 14

International Standard Serial Number (ISSN)

  • 2073-4360

abstract

  • This study aimed to obtain functional viscose textiles based on chitosan coatings with improved antibacterial properties and washing durability. For that reason, before functionalization with chitosan/zinc nanoparticles (NCH+Zn), the viscose fabric was modified by nonthermal gas plasma of dielectric barrier discharge (DBD) to introduce into its structure functional groups suitable for attachment of NCH+Zn. NCH+Zn were characterized by measurements of hydrodynamic diameter and zeta potential and AFM. DBD-plasma-modified and NCH+Zn-functionalized fabrics were characterized by zeta potential measurements, ATR-FTIR spectroscopy, the calcium acetate method (determination of content of carboxyl and aldehyde groups), SEM, breaking-strength measurements, elemental analysis, and ICP-OES. Their antibacterial activity was determined under dynamic contact conditions. In addition to SEM, the NCH+Zn distributions on viscose fabrics were also indirectly characterized by measuring their absorbent capacities before and after functionalization with NCH+Zn. Washing durability was monitored through changes in the zeta potential, chitosan and zinc content, and antibacterial activity after 1, 3, and 5 washing cycles. The obtained results showed that DBD plasma modification contributed to the simultaneous improvement of NCH+Zn sorption and antibacterial properties of the viscose fabric functionalized with NCH+Zn, and its washing durability, making it suitable for the production of high-value-added medical textiles.

subjects

  • Chemistry
  • Materials science and engineering

keywords

  • antibacterial properties; chitosan/zinc nanoparticles; dielectric barrier discharge; medical textiles; viscose