Related Experiment Video
Updated: Jul 29, 2025

Controlled-release of Chlorine Dioxide in a Perforated Packaging System to Extend the Storage Life and Improve the Safety of Grape Tomatoes
Published on: April 7, 2017
One-step antibacterial modification of polypropylene non-woven fabrics via oxidation using photo-activated chlorine
Keita Yamamoto1, Haruyasu Asahara1,2, Kazuo Harada1
1Graduate School of Pharmaceutical Sciences, Osaka University, Yamada-oka 1-6, Suita, Osaka, 565-0871, Japan. asahara@phs.osaka-u.ac.jp.
Abstract:
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 (ClO2˙). 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.
More Related Videos
Related Concept Videos
Chemical Agents for Microbial Control
Radical Chain-Growth Polymerization: Overview
Radical Autoxidation
Oxidation of Alkenes: Anti Dihydroxylation with Peroxy Acids
Oxidation of Alcohols
The process of oxidation in a chemical reaction is observed in any of the three forms:
Methods of Sterilization II: Chemical Methods
Using chemical sterilization rather than heat to clean out equipment is recommended. It eradicates and removes all bacteria,...

