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. 2020 Jun 1;10(6):1093. doi: 10.3390/nano10061093

Figure 2.

Figure 2

Surface characterization of control and test specimen. (a) XRD spectra of machined Ti (MA), non-heat-treated T0 (T0-BH) and T0 heat-treated at 450 °C (T0-AH), characterization of electrospray-deposited tetracycline nanoparticles by (b) dynamic light scattering for the nanoparticle size and (c) transmission electron microscopy for the surface morphology of the nanoparticles (scale bar = 100 nm), and (d) surface morphology of the specimens assessed by FE-SEM (top view) (scale bar = 200 nm).