Durable antimicrobial cotton textiles coated sonochemically with ZnO nanoparticles embedded in an in-situ enzymatically generated bioadhesive

Marc Salat, Petya Petkova, Javier Hoyo, Ilana Perelshtein, Aharon Gedanken, Tzanko Tzanov

Research output: Contribution to journalArticlepeer-review

75 Scopus citations

Abstract

An important preventive measure for providing a bacteria-free environment for the patients is the introduction of highly efficient and durable antibacterial textiles in hospitals. This work describes a single step sono-enzymatic process for coating of cotton medical textiles with antibacterial ZnO nanoparticles (NPs) and gallic acid (GA) to produce biocompatible fabrics with durable antibacterial properties. Cellulose substrates, however, need pre-activation to achieve sufficient stability of the NPs on their surface. Herein, this drawback is overcome by the simultaneous sonochemical deposition of ZnO NPs and the synthesis of a bio-based adhesive generated by the enzymatic cross-linking of GA in which the NPs were embedded. GA possesses the multiple functions of an antibacterial agent, a building block of the cross-linked phenolic network, and as a compound providing the safe contact of the coated materials with human skin. The ZnO NPs-GA coated fabrics maintained above 60% antibacterial efficacy even after 60 washing cycles at 75 °C hospital laundry regime.

Original languageEnglish
Pages (from-to)198-203
Number of pages6
JournalCarbohydrate Polymers
Volume189
DOIs
StatePublished - 1 Jun 2018

Bibliographical note

Funding Information:
The research leading to these results has received funding from European Community’s Horizon 2020 Framework Program H2020 (H2020-720851 project PROTECT – Pre-commercial lines for production of surface nanostructured antimicrobial and anti-biofilm textiles, medical devices and water treatment membranes) and the Joint Programming Initiative on Antimicrobial Resistance (project NPERDMD – Investigating the mechanism of eradication of multiple resistant bacteria by inorganic, organic and protein-based nanoparticles) via the Spanish MINECO AC14/00022.

Publisher Copyright:
© 2018 Elsevier Ltd

Keywords

  • Antibacterial textiles
  • Cotton
  • Gallic acid
  • Laccase
  • Sonochemistry
  • ZnO nanoparticles

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