Fig. 1 (IMAGE) Osaka University Caption Nanostructur porous titanium oxide thin film (TiOx) deposited on the plastic (PI: polyimide) substrate. Credit Osaka 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.