Figure 3.

Optimization studies based on UV–visible spectral analysis for gold and silver nanoparticles production by C. sativa core extract.

Notes: The optimized parameters for C-AuNPs were as follows: the reaction mixture ratio (extract:water) (A), temperature (B), time (C) and gold salt concentration (D). The optimized parameters for C-AgNPs were as follows: the reaction mixture ratio (extract:water) (E), temperature (F), time (G) and silver salt concentration optimization (H).

Abbreviations: aq, aqueous; C-AgNPs, core–silver nanoparticles; C-AuNPs, core–gold nanoparticles; C. sativa, Cannabis sativa; OD, optical density; temp opt, temperature optimization; UV, ultraviolet.