Epifluorescence images of Cells (IMAGE) World Scientific Caption Epifluorescence images of cells following delivery of a fluorescent dye, propidium iodide, following electroporation treatment at varying pulse strengths and duration. Propidium iodide is impermeant to the cell until the membrane is permeabilized via electroporation. The propidium iodide is then transported into the cell cytoplasm and fluoresces upon binding cytoplasmic nucleic acids. Credit <i>Technology Journal</i> 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.