Spherical Colloidal Crystal (IMAGE) Nagoya University Caption This is electron micrographs of spherical colloidal crystals composed of fine silica particles with a particle diameter of 250 nm: (a) image showing one spherical colloidal crystal, (b) surface image of the spherical colloidal crystal, (c) a sectional image of the spherical colloidal crystal, and (d) spherical colloidal crystals maintained between the mesh sizes of 125 μm and 150 μm. Credit John Wiley & Sons, Inc. Usage Restrictions with credit 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.