Superhydrophobic coating (IMAGE) Aalto University Caption A superhydrophobic coating traps a layer of air between the mould and bacterial culture, guiding nanocellulose fibre growth. Credit Graphic: Luiz Greca 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.