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. 2016 Jun 17;11:300. doi: 10.1186/s11671-016-1511-9

Fig. 2.

Fig. 2

UV-vis absorption spectra of AgNPs during synthesis process, with various amount of extract at 80 °C for 3 h (a), with various concentrations of AgNO3 at 80 °C for 3 h (b), at RT (c), and at 80 °C (d)