Fig. 1
From: Promising upshot of silver nanoparticles primed from Gracilaria crassa against bacterial pathogens
Formation of silver nanoparticles by green synthesis. AgNP’s were formed by the reduction of silver ions by Gracilaria crassa. This figure illustrates the various stages of formation of AgNP’s; a pure algal extracts (pale yellow); b at 0 min, on immediate addition of 1 mM solution of Silver nitrate (no reaction); c after 15 min (slight reduction); d after 30 min (moderate reduction); e after 12 h of addition of 1 mM solution of Silver nitrate (Complete reduction).