Pure islet cells (IMAGE) University of Illinois Chicago Caption Pictured are pure islet cells following the islet isolation and purification process and before the islets are prepared to be infused into a patient. Credit (Photo: José Oberholzer /CellTrans Inc.) Usage Restrictions No restrictions. License Public Domain 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.