John Sweeney, Aimee Stapleton and Vincent Casey, University of Limerick (image) University of Limerick Share Print E-Mail Caption These are the authors of The Direct Piezoelectric Effect in the Globular Protein Lysozyme (L to R) John Sweeney, Aimee Stapleton and Vincent Casey of University of Limerick. Credit Photo by Sean Curtin, TrueMedia. Usage Restrictions The image is licensed for media use in relation to this story only with appropriate caption or credit. Share Print E-Mail 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.