Mcdevitt and Stem Cell Aggregate Study (IMAGE) Georgia Institute of Technology Research News Caption Todd McDevitt, an assistant professor in biomedical engineering at Georgia Tech, points to an aggregate of embryonic stem cells undergoing differentiation with blue-stained nuclei. He has developed a molecular delivery method to improve the efficiency of stem cell differentiation into specific cell types. Credit Georgia Tech Photo: Gary Meek Usage Restrictions None 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.