Metal remediation has also been proposed, using zero valent iron and other classes of nanomaterial. Nanoparticles such as polyamidoamine dendrimers can serve as chelating agents, and can be further enhanced for ultrafiltration of a variety of metal ions (Cu(II), Ag(I), Fe(III), etc.) by attaching functional groups such as primary Amines, carboxylates, and hydroxymates [5]. Other research indicates that arsenite and arsenate may be precipitated in the subsurface using zero-valent iron, making arsenic less mobile [5]. Self-assembled monolayers on mesoporous supports (SAMMS) are nanoporous ceramic materials that have been developed to remove Mercury or radionuclides from wastewater [5].