Image (IMAGE) Higher Education Press Caption Dye-doped PDMS optical fiber at the center whose flexibility is demonstrated by a knot, and the switching mechanism of the organic dye. Credit Camila Aparecida Zimmermann, Koffi Novignon Amouzou, Dipankar Sengupta, Aashutosh Kumar, Nicole Raymonde Demarquette, Bora Ung Usage Restrictions none License Original 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.