The Larsen research group focuses on the synthesis, characterization by magnetic resonance techniques and applications of porous materials, such as zeolites and mesoporous silica, in environmental protection, catalysis, drug delivery and biomedical imaging.  Specifically, we are interested in the structure and function of zeolites and mesoporous silica and how the material properties change as the crystal size is decreased to the nanoscale.  Current projects in the group include: 1) synthesis of nanoscale porous materials, 2) studies of environmental interfaces of nanozeolites in aqueous environments using NMR, 3) drug delivery of small drug molecules using zeolite and mesoporous silica hosts and 4) applications of magnetic mesoporous silica materials to the purification of water.