The antibiotics that have saved humanity from extinction again and again are about to stop working. Antibiotic-resistant bacteria are multiplying faster than science can keep up. It’s estimated that these pathogens will kill 10 million of us a year by 2050 if we don’t come up with effective treatment. Enter Dr Ana L. Santos of Rice University, Texas. Her team of microbiologists have developed microscopic robots which kill the bacteria that medicine can’t. She tells Olly Mann about their groundbreaking research into nanobiotics and how drilling nanobots could turn the tide in the fight against aggressive infections. Every Monday and Thursday WHY? takes you on a wild adventure to the edge of knowledge. Follow on your favourite app so you never miss an episode. WHY? is written and presented by Olly Mann. Audio production by Jade Bailey. Artwork by James Parrett. Music by DJ Food. Exec Producer: Jacob Jarvis. Lead Producer: Anne-Marie Luff. Group Editor: Andrew Harrison.  WHY? is a Podmasters Production. Instagram | Twitter Learn more about your ad choices. Visit podcastchoices.com/adchoices