The Synthetic Method (IMAGE) Hokkaido University Caption The synthetic method yields polymers with adjacent cationic (blue)-aromatic (green) sequences. The two monomer types in polymers bonded together to form a hydrogel that stuck well to negatively-charged solid surfaces in saltwater. (Hailong Fan et al., Nature Communications, November 12, 2019) Credit Hailong Fan et al., <em>Nature Communications</em>, November 12, 2019 Usage Restrictions This image is copyrighted and can be used for reporting on this research work without obtaining a permission if credited properly. 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.