Toxic Flies (IMAGE) Brown University Caption Microscopy shows a clean foot and leg of a fruit fly (left), and a foot and leg covered with carbon nanostructures (arrows). Adhering nanostructures may have impeded movement, respiration and vision in adult flies but did not appear toxic to fly larvae that ingested it. Credit David Rand laboratory, Brown University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.