Two-Step Process for Accelerated Gel Formation (image) University of Tokyo Share Print E-Mail Caption Scientists developed the hydrogel oligo-TetraPEG with a low polymer concentration that gels in a relatively short time after being injected into rabbits' eyes. They were able to shorten the gelation period by separating the reaction into two steps: In the first step, biocompatible polymers react with each other, producing gigantic and highly branched polymer clusters. In the second step, the mutually reactive polymer clusters are combined to prepare a gel containing a very low concentration polymer component (1 wt percent or less) that gels in 10 minutes or less. Credit 2017 Takamasa Sakai. Usage Restrictions In relation to the press release only. 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.