Protein Droplets in a Cell (IMAGE) Princeton University, Engineering School Caption Protein droplets, appearing as white dots, increase in number as intensity of a laser shining on the cell increases. Credit Princeton University Usage Restrictions non commercial use 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.