The self-assembly of semiconductor quantum dots or wires within the cavity of a zeolite or molecular-sieve host to form qunatum supralattices has great potential in the development and study of organized systems with value in, for example, quantum electronics, nonlinear optics, optical data storage, and chemoselective sening. The organization of inorganic, organometallic, and metal-carbonyl moieties on the internal surfaces of the hosts (e.g. see figure) is thebasis of the work and the chemsitry and its applications are reviewed.