BIO-VAR Ltd is Armenian biotech company founded in 1998 We are producing large spectrum of various products, namely proteins, enzymes monospecific antibodies,conjugates of antibodies with enzymes for EIA, with polystyrene latex beads for immunoagglutination assays,diagnostic kits,gold and silver nanoparticles, their conjugates with various proteins for cytochemistry, histochemistry, apoptosis research. We also produce other products that can be applied in various area of research, biotechnology medicine etc. Our staff of highly qualified researchers permits us to decide new scientific tasks and list of our products is replenished constantly. At present we are involved in technologies based on production of composite nanoparticles with their consequent application in new types of imunoassays and in vivo imaging.