Microtubules Formation (IMAGE) Hokkaido University Caption The microtubules formed wave patterns when no stress is applied (left). When the elastomer substrate is expanded and contracted, they turned into an aligned pattern (middle) or a zigzag pattern (right). Credit Daisuke I. et al., <i>ACS Nano</i>. October 4, 2019 Usage Restrictions These images are copyrighted and can be used for reporting this research work without acquiring a permission if credited as instructed. 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.