have been fabricated by means of nanorobotic manipulation of microspheres. The technique enables the preparation of macroporous lattices, and opens the way to controllable formation of a wide variety of microstructures and thus provides a new route to the study of novel lattices with photonic properties. (F. Meseguer, C. López, et al., Adv. Mater. 2002, 14, 1144-1147)