Fig. 1From: Alpinia calcarata: potential source for the fabrication of bioactive silver nanoparticlesA UV–Visible spectrum of synthesized silver nanoparticles [inset: change in color of the solution confirming the formation of silver nanoparticles]. (a) Plant extract and (b) synthesized silver nanoparticles. B Color intensity at 420 nm for silver nanoparticles synthesized by A. calcarata leaf extract during different time intervalsBack to article page