Microincubator (IMAGE) Johns Hopkins University Caption Johns Hopkins researchers have developed this thumb-sized microincubator. A syringe is used to inject living cells and nutrients into the device. Credit Will Kirk/JHU 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.