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. 2021 Jul 19;22(14):7715. doi: 10.3390/ijms22147715

Figure 1.

Figure 1

(A) Ultraviolet–visible (UV–Vis) spectra of silver nanoparticles (AgNPs) recorded after 5 (dotted line) and 15 min (solid line) for the 2%, 10%, and 20% concentrations at 35 °C. Inset: Changing rate of production of AgNPs measured by changes in absorbance at 400 nm with time. (B) Spectra for the 2%, 10%, and 20% concentrations recorded at 35 °C (dotted line) and 70 °C (solid line) after 1 h.