Detection of Nanoparticle in Plant Tissue (image) European Synchrotron Radiation Facility Caption Highly sensitive spectral analysis techniques at the ESRF enabled detecting otherwise undetectable nanoparticles of cerium dioxide in the soya beans. This image shows the X-ray fluorescence intensity in an area of about 0.5 by 0.5 mm2. The nanoparticle is indicated by a red pixel (high fluorescence) in the upper left quarter. Credit ESRF/H. Castillo-Michel Usage Restrictions None 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.