期刊
ADVANCED FUNCTIONAL MATERIALS
卷 31, 期 34, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.202102888
关键词
antimicrobial; organogels; respiratory microdroplets; self-healing; slippery coating
类别
资金
- Research Grant Council of Hong Kong [CityU 11307220, CityU 11100215]
- Shenzhen Basic Research Program [JCYJ20180307123925200, JCYJ20180507181627057]
- China Postdoctoral Science Foundation [2020M672889]
The developed organogel coating, inspired by mucus, has unique features such as localized molecular control-release, readily damage healing, and persistent fouling-release properties, making it preferable for antifouling coating. Microdroplets deposited on the organogel surfaces are spontaneously wrapped with a thin liquid layer, allowing for rapid disinfection through spatially enhanced release of bactericidal molecules. The persistent fouling-release and damage-healing properties of the coating significantly extend its life-span, making it promising for diverse applications.
Surface-deposited pathogens are sources for the spread of infectious diseases. Protecting public facilities with a replaceable or recyclable antifouling coating is a promising approach to control pathogen transmission. However, most antifouling coatings are less effective in preventing pathogen-contained respiratory droplets because these tiny droplets are difficult to repel, and the deposited pathogens can remain viable from hours to days. Inspired by mucus, an antimicrobial supramolecular organogel for the control of microdroplet-mediated pathogen spread is developed. The developed organogel coating harvests a couple of unique features including localized molecular control-release, readily damage healing, and persistent fouling-release properties, which are preferential for antifouling coating. Microdroplets deposited on the organogel surfaces will be spontaneously wrapped with a thin liquid layer, and will therefore be disinfected rapidly due to a mechanism of spatially enhanced release of bactericidal molecules. Furthermore, the persistent fouling-release and damage-healing properties will significantly extend the life-span of the coating, making it promising for diverse applications.
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