Digital Switches Structure (IMAGE) Michigan Technological University Caption Michigan Tech physics professor Yoke Khin Yap says the chemical structures of graphene (gray) and boron nitride nanotubes (pink and purple) are key in creating a digital switch. Credit Michigan Tech, Yoke Khin Yap Usage Restrictions please credit 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.