Nano-Wrinkled Surfaces and Actuation Disrupt Biofilms on Medical Implants, University of Michigan Study Shows

A new approach from University of Michigan Engineering combines nano-wrinkled surfaces with a tiny soft actuator to break up biofilms—bacterial sheets that cause stubborn infections on medical implants. The platform, called DARTS (dynamically actuated reconfigurable topographical surface), was tested in mice and reduced bacterial burden while improving tissue response, according to a study published in Advanced Functional Materials. Biofilms are a major cause of implant failure, often requiring surgical removal and prolonged antibiotic treatment. By actively disrupting the biofilm structure, DARTS could help prevent infections before they take hold. This matters because millions of implants—such as catheters, artificial joints, and heart valves—are placed each year, and biofilm-related infections cost billions and lead to serious illness. The technology offers a potential new strategy to keep implants clean without relying solely on drugs. As the research advances, this dynamic surface could transform how we protect patients from device-associated infections.