ANTIMICROBIAL PROPERTIES OF POLYMERIC NANOFIBROUS MEMBRANES CONTAINING FERROUS SULPHATE

1 KRCHNACKOVA Zuzana
Co-authors:
1 KIMMER Dusan 1 LOVECKA Lenka 1 KOVAROVA Miroslava 1 PISTEKOVA Hana 1 VESELA Daniela 1 VINCENT Ivo 1 YASIR Muhammad 1 SEDLARIK Vladimir
Institution:
1 Centre of Polymer Systems, Tomas Bata University in Zlin, Czech Republic, EU, krchnackova@utb.cz
Conference:
13th International Conference on Nanomaterials - Research & Application, Orea Congress Hotel Brno, Czech Republic, EU, October 20 - 22, 2021
Proceedings:
Proceedings 13th International Conference on Nanomaterials - Research & Application
Pages:
317-322
ISBN:
978-80-88365-00-6
ISSN:
2694-930X
Published:
22nd November 2021
Proceedings of the conference were published in Scopus.
Metrics:
371 views / 188 downloads
Abstract

This paper reposts on nanofibers of polymers doped with ferrous sulphate (FeSO4) possibly in combination with quaternary ammonium salt (QAS) prepared by electrospinning. Three types of polymers (polyvinylidene fluoride/PVDF, polylactic acid/PLA and polyurethane/PU) with good electrospinning processability and good mechanical properties of nanofibers were chosen. The prepared nanofibrous membranes were characterised in terms of morphology of the fibres assessed by SEM, and the pore sizes were determined by porometry. The leaching test showed a firm anchoring of the additive in the nanofiber structure. Antimicrobial activity was monitored after 0 h, 4 h and 24 h using Staphylococcus aureus (CCM 4516) and Klebsiella pneumoniae (CCM 4415) strains. Furthermore, aerosol filtration efficycy was dermined and also quality factor of filtration.The membrane prepared from PU doped with FeSO4 showed the best antibacterial efficiency. The porosity and morphology of the nanofibrous membrane effectively contributed to the trapping of microorganisms. This system was also evaluated as the most suitable for the electrospinning process from the effectivity point of view. Spinning ang dopping process of preparation is easily applicatbole to the the industrial conditions of production which is very importatnt aspect of this submitted scientifique work.

Keywords: Antimicrobial properties, doped nanofibers, FeSO4, filtration

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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