Hydrogels (IMAGE) McGill University Caption The researchers tested three different hydrogels using the vocal cord bioreactor. While the new hydrogel remained stable, the two standard hydrogels, which represent most existing injectable hydrogels, did not survive the test. Credit Sareh Taheri Usage Restrictions Credit License Original 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.