期刊
COLLOIDS AND SURFACES B-BIOINTERFACES
卷 186, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.colsurfb.2019.110728
关键词
Poly(catechol-hexanediamine) particles; Bacteria removal; Magnetic separation; Biofilm eradication
资金
- National Natural Science Foundation of China [51433007, 51673125, 51773127, 51873115, 51803131, 51803134]
- Science and Technology Program of Sichuan Province [20175Z0011, 2019YJ0132]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT_15R48]
- State Key Laboratory of Polymer Materials Engineering [skipme2017-3-07, sklpme2015-1-03]
- Fundamental Research Funds for the Central Universities [2012017yjsy185]
In this study, we proposed a green, facile and low-cost approach for the fabrication of multifunctional particles with robust bacteria removal capability and on-demand biofilm eradication activity. Based on mussel-inspired coating of catechol and hexanediamine on Fe3O4 in aqueous solution, magnetic poly(catechol-hexanediamine) particles (Fe3O4@HDA) were prepared successfully in 1 h, at room temperature. Microbiological experiments demonstrated the Fe3O4@HDA particles could capture bacteria in water efficiently. Meanwhile, with an integration of magnetic response property and near-infrared-triggered photothermal bactericidal activity, the Fe3O4@HDA particles showed a high potential for biofilm targeting and in-situ eradication. We believe that the rationally designed magnetic poly(catechol-hexanediamine) particles could extend the applications of smart antimicrobial agents to industrial fields such as water disinfection and biofouling clean-up.
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