Fig. 2From: Facile and rapid detection of respiratory syncytial virus using metallic nanoparticlesParticle size distribution for non-functionalized copper (a), silver (c) and gold (e) nanoparticles, and antibody functionalized (using optimized quantity) copper (b), silver (d) and gold (f) nanoparticles. Three separate measurements were recorded for each nanoparticle, represented with red, blue and black curves Back to article page