Fig. 2From: A novel green synthesis and characterization of silver nanoparticles using gum tragacanth and evaluation of their potential catalytic reduction activities with methylene blue and Congo red dyesThe UV-Vis absorption spectra of AgNPs synthesized with different concentration of gum tragacanth extracts containing 0.5 % of silver nitrate by ultra sonication for 45 min at 45 °CBack to article page