期刊
ADVANCED MATERIALS
卷 31, 期 2, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201801324
关键词
anti-biofouling; medical; superhydrophobic; superoleophobic; wetting
类别
资金
- ERC [340391-SUPRO]
- German Research Foundation (DFG) with the Collaborative Research Center 1194
- European Union [722497]
- DAAD-MoST sandwich scholarship
- Marie Sklodowska-Curie fellowship [660523-NoBios-ESR]
Fouling of thin tubes is a major problem, leading to various infections and associated morbidities, while cleaning is difficult or even impossible. Here, a generic method is introduced to activate and coat the inside of meter-long and at the same time thin (down to 1 mm) tubes with a super-liquid-repellent layer of nanofilaments, exhibiting even antibacterial properties. Activation is facilitated by pumping an oxidative Fenton solution through the tubes. Subsequent pumping of a silane solution renders the surface of the tubes super-liquid-repellent. The wide applicability of the method is demonstrated by coating stiff and flexible tubes made of polymers, inorganic/organic hybrids, metals, and ceramics. Coated medical catheters show excellent antibacterial properties. Notably, the nanofilaments retain their antibacterial properties even in the superhydrophilic state. These findings open new avenues toward the design of biocide-free, antibacterial tubings and catheters.
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