571015.fig.004a
(a)
571015.fig.004b
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571015.fig.004c
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Figure 4: (a) Characteristic OCT B-scan image of tissue phantom with and without B-GNPs. (b) OCT B-scan image of tissue phantom showing the corresponding zones used to calculate contrast enhancement (white squares). (c) Average A-scan of tissue phantom without B-GNPs is represented by the dotted line, while average A-scan of tissue phantom with B-GNPs is represented by the continuous line. Inset: zoom of the profile corresponding to the depth of the layer with nanoparticles (signaled by the arrow) showing the enhancement of backscattered light.