Fig. 4.
Electron microscopy analysis of UHF–AgNP. (a) SEM images of UHF–AgNP0.5 at 500× magnification. (b) SEM images of UHF–AgNP1 at 500× magnification. (c) EDX of UHF–AgNP0.5 and (d) EDX of UHF–AgNP1.
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