Polyimide-based magnetic microactuators for biofouling removal

Abstract

Here we report on the development of novel polyimide-based flexible magnetic actuators for improving hydrocephalus shunts. The static and dynamic mechanical responses of the thin-film magnetic microdevices were quantitatively measured. The bacteria-removing capabilities of the microfabricated devices were also evaluated. Although additional evaluations are necessary, the preliminary results show promising potential for combatting bacteria-induced biofouling. Lastly, the thin-film microdevices are integrated into a single-pore silicone catheter to demonstrate a proof-of-concept, MEMS-enabled self-clearing, smart catheter.

A polyimide complex system decorated with ZnO nanorods with multiple antibacterial effects

“…12,13 Polyimide (PI) films have been widely used in the aerospace, microelectronics, nanometer, liquid crystal, separation film, laser and other fields as special engineering materials. 14,15 As structural materials or functional materials, PI films have been well recognized for their great application prospects, due to their outstanding characteristics in performance and synthesis. 16,17 However, PI films showed poor antibacterial and anti-mildew properties.…”