Powerful Method Probes Small-Molecule Structures (image) American Chemical Society Share Print E-Mail Caption MicroED can identify compounds in a mixture from their nanocrystals (black shapes) on a cryoEM grid. Holes (grey circles) are 2 μm in diameter. Credit American Chemical Society Usage Restrictions Please credit the American Chemical Society. 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.