Figure 1 (image) Science China Press Share Print E-Mail Caption (a) Schematic of the r-GO hydrogel capillary shrinkage process; (b) capillary force exerted on the r-GO sheets during solvent evaporation. Credit ©Science China Press Usage Restrictions Use with credit. Share Print E-Mail 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.