which does not increase with the increase in the gold salt concentration. Ray et al. improved this synthesis method by enhancing the nanoparticle yield by manyfold at ambient temperature. Applications Antibiotic conjugated nanoparticle synthesis Antibiotic functionalized metal nanoparticles have been widely studied as a mode to treat multi-drug resistant bacterial strains. For example, kanamycin capped gold-nanoparticles (Kan-AuPs) showed broad spectrum dose dependent antibacterial activity against both gram positive and gram negative bacterial strains in comparison to kanamycin alone. See also Colloidal silver Gold nanorods Gold nanoparticles in chemotherapy Nanozymes References Further reading External links Point-by-point methods for citrate synthesis and hydroquinone synthesis of gold nanoparticles are available here. Gold Nanoparticles by composition Gold