Microorganisms such as bacteria, sperm and microalgae have evolved to develop robust actuation systems that enable autonomous motion, and these natural cellular systems have recently emerged as attractive carriers for transporting therapeutics to hard-to-reach body locations.  According to a recent publication, researchers from University of California, San Diego have developed a novel algae-based motor platform, with the aim of addressing limitations of cargo delivery into the gastrointestinal (GI) tract.