Wang Zhanhua, Fei Guoxia, Xia Hesheng, Zuilhof Han
State Key Lab of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, P. R. China.
J Mater Chem B. 2018 Nov 21;6(43):6930-6935. doi: 10.1039/c8tb01863d. Epub 2018 Oct 24.
Herein, we show for the first time drop-casting zwitterionic polymer colloidal particles onto different surfaces to obtain zwitterionic coatings with highly protein-repelling properties and dual self-healing capabilities. Upon nano/micro mechanical scratches, the coatings self-heal in a NaCl solution which is accompanied by the recovery of the anti-biofouling characteristics. Also under severe macro damage conditions, water will induce the zwitterionic groups buried inside the particles to transfer to the coating surface, and as such regenerate the surface-wetting properties and repair the anti-biofouling properties.
在此，我们首次展示了将两性离子聚合物胶体颗粒滴铸到不同表面上，以获得具有高度抗蛋白质吸附特性和双重自修复能力的两性离子涂层。在受到纳米/微机械划痕时，涂层在NaCl溶液中自行修复，同时抗生物污损特性也得以恢复。同样在严重的宏观损伤条件下，水会促使埋在颗粒内部的两性离子基团转移到涂层表面，从而恢复表面润湿性并修复抗生物污损性能。
