Factors Affecting Bacterial Adhesion on Selected Textile Fibres
- PDF / 539,439 Bytes
- 7 Pages / 595.276 x 790.866 pts Page_size
- 88 Downloads / 268 Views
ORIGINAL RESEARCH ARTICLE
Factors Affecting Bacterial Adhesion on Selected Textile Fibres Swati Varshney1 • Abhineet Sain1 • Deepti Gupta2 • Shilpi Sharma1
Received: 29 March 2020 / Accepted: 18 August 2020 Association of Microbiologists of India 2020
Abstract In sectors like healthcare and hospitality, it has been realized that fabrics play a pivotal role in transfer of nosocomial infections. However, there is a major gap in drawing correlation between different fibre types and their interaction with microorganisms. Such information is important to formulate guidelines for textile materials for use in these sectors. In the current study, the adherence of four important bacteria, Staphylococcus aureus, Acinetobacter calcoaceticus, Escherichia coli, and Pseudomonas aeruginosa was studied on six different fibre types namely polyester, wool, polypropylene, viscose, silk and cotton. Among these fibres, viscose showed maximum adherence while silk fibres showed the least attachment of bacterial strains. Bacterial adhesion was correlated with the surface characteristics (surface charge, hydrophobicity etc.) of bacteria, and nanoroughness of fibres. Adhesion of these bacteria was tested on five hydrocarbons of different hydrophobicities. E. coli, the weakest biofilm producer, and with the highest surface energy and lowest hydrophobicity amongst the bacteria compared in the study, had the lowest load on all fibres. Scanning electron microscopy revealed non-uniform binding of gram-negative and gram-positive bacteria. Nanoroughness of fibres
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s12088-020-00903-5) contains supplementary material, which is available to authorized users. & Shilpi Sharma [email protected] 1
Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
2
Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
favored bacterial adhesion. The study showed correlation between surface properties and adherence of bacteria on fibres, with the results being of direct significance to medical and hospitality sectors. Keywords Textile Infection Bacterial adhesion Surface morphology Contact angle
Introduction Textile surfaces exhibit a potent role in microbial adhesion and transfer [1–3]. Specifically, uniform of health care practitioners has been reported to mediate the transfer of nosocomial infection in health care sectors with reports on an increasing trend in cases of antibiotic resistant bacteria in the hospital environment [4]. The microbial load on healthcare textiles can serve as a route for the transfer of pathogenic microorganisms as soft surfaces serve as a suitable habitat for the growth and multiplication of organisms [3, 5]. The same is true for the hospitality sector. Hence it is imperative to study how textile properties affect microbial load. This will help in strategizing measures to combat the spr
Data Loading...
