Super-Strong Hydrogels Could One Day Offer Relief for Aching Knees (image) Duke University Share Print E-Mail Caption Duke researchers have developed the first gel-based synthetic cartilage with the strength of the real thing. A quarter-sized disc of the material can withstand the weight of a 100-pound kettlebell without tearing or losing its shape. Credit By Feichen Yang, Duke University. Usage Restrictions Please credit Feichen Yang, Duke University 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.