High-speed production of antibacterial fabrics using liquid flame spray

Author:

Brobbey Kofi Jocelyn1ORCID,Haapanen Janne2,Tuominen Mikko3,Mäkelä Jyrki2,Gunell Marianne4,Eerola Erkki4,Saarinen Jarkko J5,Toivakka Martti1ORCID

Affiliation:

1. Abo Akademi, Finland

2. Tampereen Teknillinen yliopisto, Finland

3. RISE Research Institutes of Sweden, Sweden

4. Turun Yliopisto, Finland

5. University of Eastern Finland, Finland

Abstract

Healthcare associated infections (HAIs) are known as one of the major problems of the modern healthcare system, which result in additional cost and mortality. It has also been shown that pathogenic bacteria are mostly transferred via surfaces in healthcare settings. Therefore, antibacterial surfaces, which include fabrics and textiles, can be used in a healthcare environment to reduce the transfer of pathogenic bacteria, hence reducing HAIs. Silver nanoparticles have been shown to have broad spectrum antibacterial properties, and therefore they have been incorporated into fabrics to provide antibacterial functionality. Liquid flame spray (LFS) nanoparticle synthesis allows nanoparticles to be produced and deposited on surfaces at speeds up to and beyond 300 m/min. Herein, LFS is used to deposit silver nanoparticles onto two fabrics that are commonly used in the hospital environment with the aim of producing antibacterial fabrics. A thin plasma coating on top of the fabrics after silver deposition is used to improve nanoparticle adhesion. Fabrics coated with silver nanoparticles demonstrated antibacterial properties against Escherichia coli. Nanoparticle imaging and surface chemical characterization are performed using scanning electron microscopy and X-ray photoelectron spectroscopy. The highlights of this research are as follows:  • high-speed synthesis and deposition of silver nanoparticles on fabrics;  • plasma coating onto fabrics with silver nanoparticles;  • antibacterial fabrics for potential use in healthcare environments.

Publisher

SAGE Publications

Subject

Polymers and Plastics,Chemical Engineering (miscellaneous)

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