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. 2021 Oct 28;16:7285–7295. doi: 10.2147/IJN.S268548

Figure 1.

Figure 1

Characterization of GNP (A) absorption spectra showing the surface plasmon resonance peak, (B) size distribution pattern, (C) zeta potential measurement graph, (D) microscopic image showing the morphological depictions of nanoparticles by AFM at contact mode.