Controlled Release of Antimicrobial ClO2 Gas from a Two-Layer Polymeric Film System
| Autor: | Alexander Williamson, Amy L. Reder, Diego E. Cristancho, Aaron A. Rachford, Zhifeng Bai, Adam L. Grzesiak |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
Acrylate Vinyl alcohol Materials science Sodium chlorite Substrate (chemistry) 04 agricultural and veterinary sciences 02 engineering and technology General Chemistry Polymer 021001 nanoscience & nanotechnology 040401 food science Controlled release chemistry.chemical_compound 0404 agricultural biotechnology Chemical engineering chemistry Reagent Polymer chemistry Adhesive 0210 nano-technology General Agricultural and Biological Sciences |
| Zdroj: | Journal of Agricultural and Food Chemistry. 64:8647-8652 |
| ISSN: | 1520-5118 0021-8561 |
| DOI: | 10.1021/acs.jafc.6b03875 |
| Popis: | We report a two-component label system comprising a chlorite-containing polymer film and an acid-containing polymer film that can release antimicrobial ClO2 gas upon adhering the two films together to enable a reaction of the chlorite and acid under moisture exposure. The chlorite-containing film comprises a commercial acrylate-based pressure-sensitive adhesive polymer impregnated with sodium chlorite. The acid-containing film comprises a commercial poly(vinyl alcohol) polymer loaded with tartaric acid. Both of the films were prepared on low ClO2-absorbing substrate films from stable aqueous systems of the polymers with high reagent loading. Rapid and sustained releases of significant amounts of ClO2 gas from the label system were observed in an in situ quantification system using UV–vis spectroscopy. It was found that the ClO2 release is slower at a lower temperature and can be accelerated by moisture in the atmosphere and the films. Controlled release of ClO2 gas from the label system was demonstrated b... |
| Databáze: | OpenAIRE |
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