期刊
SEPARATION AND PURIFICATION TECHNOLOGY
卷 248, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.seppur.2020.117020
关键词
Antimicrobial activity; Isocyanurate; Antibacterial mechanism; Monolithic nanofoams; Free-standing films
资金
- National Natural Science Foundation of China [21975113, 51962018, 51663012]
- Project of Collaborative Innovation Team, Gansu Province, China [052005]
- Support Program for Hongliu Young Teachers of LUT
- 2019 Key Talent Project of Gansu, and Innovation and Entrepreneurship Talent Project of Lanzhou [2017-RC-33]
The development of high-performance antibacterial materials is of great importance for human survival and health. Herein, we report the exploitation of novel conjugated microporous polymers bearing isocyanurate moiety (I-CMPs), which were synthesized using trichloroisocyanuric acid and ethynylbenzene as building blocks via Sonogashira-Hagihara cross-coupling condensation reaction, as efficient antibacterial materials. The as-resulted I-CMPs exhibit excellent antimicrobial activity both for gram-positive and gram-negative strains, e.g., The MBC value of I-CMPs is 250 mu g.ml(-1) that is the growth of E. coli and S. aureus could be inhibited entirely after 2 h treatment. The mechanism of the antibacterial process was preliminarily discussed. Furthermore, I-CMPs can be synthesized as monolithic nanofoam or free-standing film by facile varying the synthesis conditions for filtration or sterilization, e.g., E. coli in water (10(3) cfu.ml(-1)) could be captured entirely and quickly killed by filtration with I-CMPs monolithic nanofoam, which is of great technological significance with remarkable potentials for practical applications. These findings may also open a new route to rational design and creation of functional CMPs films or monolithic nanofoam with antimicrobial activity for a particular purpose.
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