Fig. 3

UV-Vis spectra of AuNPs during reaction 25 mL of HAuCl4.3H2O(1 mM) with 4 mL of Jujube extract after 5, 15, 30 min, 1 and 2 h
UV-Vis spectra of AuNPs during reaction 25 mL of HAuCl4.3H2O(1 mM) with 4 mL of Jujube extract after 5, 15, 30 min, 1 and 2 h