Owing to their plasmonic properties nanoparticles of gold and silver find broad range of applications extending from diagnostics to molecular detection, photothermal and microwave-based therapies, and nanotoxicology. Colloidal silver nanoparticles also find applications in antimicrobial coatings, electronics and photovoltaics, and surface enhanced Raman spectroscopy (SERS) whereas the colloidal gold nanoparticles find applications in lateral flow assays (immunochromatographic assays) and as TEM labels and size standards.
Our Econix nanospheres contain PVP (40 kD polyvinylpyrrolidone) as excipient. The PVP enhances stability and dispersibility of Econix silver nanospheres. These dried powders are redispersible in a variety of polar solvents such as water, alcohols, DMF, and DMSO. However, they show medium dispersibility in chloroform, and low dispersibility in dichloromethane. Econix materials are unagglomerated, low cost silver nanospheres and are ideal for applications requiring large quantities.