Abstract: Disclosed herein are carborane derivatives of Formula I or Formula V, or a pharmaceutically acceptable salt thereof, for use as neuromuscular blocking agents. The carborane is substituted with two cationic functional groups selected from amines that form ammonium cations, ethers and/or alcohols that form oxonium cations, sulfides and/or thiols that form sulfonium cations, and phosphanes and/or phosphines that form phosphonium cations.

Abstract: A nanoparticle including a polysiloxane base having an exterior surface and having a photosensitizer at least partly exposed at its exterior surface, said photosensitizer being secured to the exterior surface by loading the photosensitizer onto the surface after formation of the polysiloxane base of the nanoparticle. The nanoparticle may have tumor targeting moieties and may be post loaded with cyanine dye. The nanoparticle preferably includes post loaded moieties providing at least two of tumor specificity, photodynamic properties and imaging capabilities and the photosensitizer is tagged with a radioisotope. A method for preparation of the nanoparticle is also provided.