| abstract |
"pheomelanine superparamagnetic nanoparticles coated and coating method" for use as magnetic resonance imaging contrast agent; It can also be used in environmental applications as a heavy metal chelator. a core formed by superparamagnetic fe3o4 nanoparticles at a stoichiometric ratio of 2: 1, fe3 + / fe2 + and an average diameter of 12 nm, by modified cooprecipitation, and their coating by pheomelanine bio-oligomer, being added to the fe3o4 nanoparticles at a stoichiometric ratio of 8: 1, resulting in a pheomelanine superparamagnetic nanoparticle coated with an average hydrodynamic diameter (dh) in solution of 90.75 nm. |