Durable Anti-Superbug Polymers: Covalent Bonding of Ionic Liquid onto the Polymer Chains
| Autor: | Jingye Li, Jipeng Guan, Yongjin Li, Shilu Wu, Yanyuan Wang |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Tetrafluoroborate
Polymers and Plastics Polymers Surface Properties Static Electricity Ionic Liquids Ionic bonding Bioengineering 02 engineering and technology 010402 general chemistry 01 natural sciences Chloride Biomaterials chemistry.chemical_compound Polymer chemistry Materials Chemistry medicine Ions chemistry.chemical_classification Bacteria Polymer 021001 nanoscience & nanotechnology Anti-Bacterial Agents 0104 chemical sciences Membrane chemistry Covalent bond Ionic liquid Polyvinyls 0210 nano-technology Antibacterial activity medicine.drug |
| Zdroj: | Biomacromolecules. 18:4364-4372 |
| ISSN: | 1526-4602 1525-7797 |
| DOI: | 10.1021/acs.biomac.7b01416 |
| Popis: | Here, we fabricated the ionic liquid (IL) grafted poly(vinylidene fluoride) (PVDF) (PVDF-g-IL) via electron-beam irradiation to fight common bacteria and multidrug-resistant “superbugs”. Two types of ILs, 1-vinyl-3-butylimmidazolium chloride (IL (Cl)) and 1-vinyl-3-ethylimidazolium tetrafluoroborate (IL (BF4)), were used. It was found that the PVDF-g-IL exhibited superior antibacterial performance, with almost the same mechanical and thermal performance as unmodified PVDF. Nonwovens and films made from PVDF-g-IL materials exhibited broad-spectrum antimicrobial activity against common bacteria and “superbugs” with the strong electrostatic interactions between ILs and microbial cell membranes. With extremely low IL loading (0.05 wt %), the cell reduction of PVDF-g-IL (Cl) nonwovens improved from 0.2 to 4.4 against S. aureus. Moreover, the antibacterial activity of PVDF-g-IL nonwovens was permanent for the covalent bonds between ILs and polymer chains. The work provides a simple strategy to immobilize ionic ... |
| Databáze: | OpenAIRE |
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