| 摘要 |
<p>A novel small size (less than 50ν) metallic particle having a metallic core coated by a rigid inorganic surface protection layer is disclosed. A novel superparamagnetic particle comprising a metal oxide core embedded with a preferably homogeneous inorganic seed, and a rigid inorganic surface protection layer to which a wide variety of molecules may be coupled is also disclosed. Uses of the novel metallic particles and methods for their preparation are also disclosed. The novel metallic particles are chemically, biologically and colloidally stable, and are of highly uniform size dispersion. The metallic particles have a wide variety of applications in systems involving separations steps, in particular the separation of biological materials.</p> |
