Less shady link (the article source): https://penntoday.upenn.edu/news/army-microrobots-can-wipe-out-dental-plaque https://penntoday.upenn.edu/news/army-micror

Less shady link (the article source): https://penntoday.upenn.edu/news/army-microrobots-can-wipe-out-dental-plaque https://penntoday.upenn.edu/news/army-microrobots-can-wipe-o... And the original publication: https://robotics.sciencemag.org/content/4/29/eaaw2388 https://robotics.sciencemag.org/content/4/29/eaaw2388