ツリガネムシを組み込んで周囲カルシウムイオンに応答するマイクロバルブ (IMAGE) Toyohashi University of Technology (TUT) Caption 低カルシウムイオン濃度では、流路が構造により閉じている(左)。ツリガネムシが高カルシウムイオン濃度で収縮し、流路を開く(右)。 Credit COPYRIGHT (C) TOYOHASHI UNIVERSITY OF TECHNOLOGY. ALL RIGHTS RESERVED. 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.