Researchers at the University of California have shown that a micromotor fueled by stomach acid can take a bubble-powered ride inside a mouse. These tiny motors, each about one-fifth the width of a human hair, may someday offer a safer and more efficient way to deliver drugs or diagnose tumours.  The experiment is the first to show that these micromotors can operate safely in a … Continue reading Stomach acid-powered nanobots get their first test in a living animal.