Igor Aronson (IMAGE) Penn State Caption Penn State biomedical engineering graduate student Leonardo Dominguez Rubio, left, and Penn State Dorothy Foehr Huck and J. Lloyd Huck Chair Professor of Biomedical Engineering Igor Aronson are part of a team that used ultrasound technology and a nozzle to separate, control and eject different particles based on their shape and various properties. Credit Penn State College of Engineering Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND 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.