Jelena Vasiljević (Author), Danaja Štular (Author), Gabriela Kalčíková (Author), Janja Zajc (Author), Matic Šobak (Author), Andrej Demšar (Author), Brigita Tomšič (Author), Barbara Simončič (Author), Marija Čolović (Author), Vid Simon Šelih (Author), Ivan Jerman (Author)

Abstract

The aim of this study was to evaluate the antibacterial and antifungal activity, cytotoxicity, leaching, and ecotoxicity of novel flame retardant polyamide 6 (PA6) textile fibers developed by our research group. The textile fibers were produced by the incorporation of flame-retardant bridged 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) derivative (PHED) in the PA6 matrix during the in situ polymerization process at concentrations equal to 10 and 15 wt% (PA6/10PHED and PA6/15PHED, respectively). Whilst the nanodispersed PHED provided highly efficient flame retardancy, its biological activity led to excellent antibacterial activity against Escherichia coli and Staphylococcus aureus, as well as excellent antifungal activity against Aspergillus niger and Candida albicans. The results confirmed leaching of the PHED, but the tested leachates did not cause any measurable toxic effect to the duckweed Lemna minor. The in vitro cytotoxicity of the leached PHED from the PA6/15PHED sample was confirmed for human cells from adipose tissue in direct and prolonged contact. The targeted biological activity of the organophosphinate flame retardant could be beneficial for the development of PA6 textile materials with multifunctional properties and the low ecotoxicity profile, while the PHED’s leaching and cytotoxicity limit their application involving the washing processes and direct contact with the skin.

Keywords

poliamid 6;tekstilni filament;DOPO derivat;antibakterijsko delovanje;protiglivično delovanje;ekotoksičnost;citotoksičnost;polyamide 6;textilefilament;DOPO derivative;antibacterialactivity;antifungal activity;ecotoxicity;cytotoxicity;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL NTF - Faculty of Natural Sciences and Engineering
UDC: 677
COBISS: 55570947 Link will open in a new window
ISSN: 2073-4360
Views: 135
Downloads: 36
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Other data

Secondary language: Slovenian
Secondary keywords: poliamid 6;tekstilni filament;DOPO derivat;antibakterijsko delovanje;protiglivično delovanje;ekotoksičnost;citotoksičnost;
Type (COBISS): Article
Pages: str. 1-18
Volume: ǂVol. ǂ13
Issue: ǂiss. ǂ6
Chronology: 2021
DOI: 10.3390/polym13060905
ID: 14641692