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. 2019 Jul 3;9(7):973. doi: 10.3390/nano9070973

Figure 3.

Figure 3

Spectrophotometric analysis of AgNPs in 0.2 M sodium-phosphate buffer (pH = 6.8). (a) Absorbance spectrum of 83.41 µg/mL naked AgNPs; (b) absorbance spectrum of 22.59 µg/mL AgNP-TBA nanoparticles; (c) absorbance spectrum of 7.66 µg/mL AgNP-MUA nanoparticles.