Inside Front Cover: Optofluidic Assembly of Colloidal Photonic Crystals with Controlled Sizes, Shapes, and Structures (Adv. Mater. 8/2008)

The cover shows a schematic of the optofluidic assembly of colloidal photonic crystals against a backdrop of arrays of blue, green, and red photonic spheres self-organized by in situ photo-induced solidification of crystalline colloidal arrays. This high-throughput optofluidic technique can create various structural motifs in photonic crystals, report Seung-Man Yang and co-workers on p. 1649; an example is photonic Janus spheres, as highlighted on the cover.