Collagen Scaffold (IMAGE) Georgia Institute of Technology Caption A microscopic image of a 10 mm collagen scaffold containing a uniform distribution of skin cells (blue) seeded on top of a 3-D polylysine gradient (green). Credit Andres Garcia/Georgia Tech Usage Restrictions With credit 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.