High-efficacy and long term antibacterial cellulose material: anchored guanidine polymer via double 'click chemistry'
| Autor: | Xianhui An, Shuaishuai Yang, Lijian Sun, Xueren Qian |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
musculoskeletal diseases
Polymers and Plastics virus diseases 02 engineering and technology Epoxy 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences nervous system diseases 0104 chemical sciences Cellulose fiber chemistry.chemical_compound chemistry visual_art Click chemistry visual_art.visual_art_medium Organic chemistry Azide Cellulose Bioactive paper 0210 nano-technology Guanidine Antibacterial activity human activities |
| Zdroj: | Cellulose. 27:8799-8812 |
| ISSN: | 1572-882X 0969-0239 |
| DOI: | 10.1007/s10570-020-03374-5 |
| Popis: | Herein, we introduce antimicrobial activity to cellulose fibers (CFs) by presenting a double “click chemistry” strategy. CFs chemically modified with azide functions are designed as a versatile ligation platform for Cu(I)-catalyzed azide-alkyne click reaction. Glycidyl propargyl ether (GPE) with epoxy groups was grafted onto azidated cellulose fibers (CFs-N3) via azide-alkyne click reaction yielding epoxy cellulose fibers (CFs-Epoxy). Then poly(hexamethylene guanidine) (PHMG) can be chemically grafted onto the CFs to form antibacterial materials (CFs-PHMG) through amino groups initiated epoxy ring-opening click reaction. The results revealed that PHMG was anchored successfully onto CFs via chemical bond formation without significant damage to the morphology of CFs and mechanical performance of cellulose paper. In the antibacterial tests, the functionalized CFs show superior antibacterial activity against E. coli and S. aureus. Importantly, CFs-PHMG paper sheet presented long-term antibacterial effectiveness, remaining ~ 99% antibacterial activity after two months storage in the air environment. This antibacterial CFs-PHMG has good potential application in bioactive paper packaging and medical paper products. |
| Databáze: | OpenAIRE |
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