g having average particle size of less than about 2000 nm prior to inclusion in the formulation, a surfactant and a gel forming agent selected from natural gelatin, a semi-syntheic gelatin, and a synthetic gelatinUS7758890 *Mar 1, 2004Jul 20, 2010Lyotropic Therapeutics, Inc.Treatment using dantroleneUS7758961Feb 28, 2008Jul 20, 2010Milliken & CompanyNanoparticle such as a clay functionalized with