One-step antibacterial modification of polypropylene non-woven fabrics via oxidation using photo-activated chlorine dioxide radicals.
Keita YamamotoHaruyasu AsaharaKazuo HaradaYuki ItabashiKei OhkuboTsuyoshi InouePublished in: Journal of materials chemistry. B (2023)
In this study, we examined the modification of polypropylene non-woven fabrics (PP NWFs) via a one-step oxidation treatment using photo-activated chlorine dioxide radicals (ClO 2 ˙). The oxidised PP NWFs exhibited excellent antibacterial activity against both Escherichia coli (Gram-negative) and Staphylococcus aureus (Gram-positive). The mound structure and antibacterial activity in the modified PP NWFs disappeared upon washing with a polar organic solvent. After washing, nanoparticles of around 80 nm in diameter were observed in the solution. The results of several mechanistic studies suggest that nanoparticles can contribute to the antimicrobial activity of oxidised PP NWFs.
Keyphrases
- gram negative
- multidrug resistant
- escherichia coli
- staphylococcus aureus
- silver nanoparticles
- drinking water
- electron transfer
- ionic liquid
- hydrogen peroxide
- biofilm formation
- photodynamic therapy
- klebsiella pneumoniae
- cystic fibrosis
- pseudomonas aeruginosa
- water soluble
- optical coherence tomography
- walled carbon nanotubes
- solid state
- anti inflammatory