Bacteria and other swimming microorganisms evolved to thrive in challenging environments, and researchers struggle to mimic their unique abilities for biomedical technologies, but fabrication challenges created a manufacturing bottleneck. Microscopic, 3D-printed, tori — donuts ­­– coated with nickel and platinum may bridge the gap between biological and synthetic swimmers, according to an international team of researchers.

Original source: https://www.sciencedaily.com/releases/2019/10/191030073337.htm