Figure 3 | Scientific Reports

Figure 3

From: Correlative chemical and elemental nano-imaging of morphology and disorder at the nacre-prismatic region interface in Pinctada margaritifera

Figure 3

Spatio-spectral analysis of interlamellar organic layers in nacre (a) AFM height and (b) IR s-SNOM image at 1660 cm-1 mapping the amide I band in the nacre region. The prism-covering organic membrane extends ~ 30 μm into the nacre from the nacre/prismatic boundary. Near the end of the organic membrane, organic layers of ~ 50 nm in width appear with ~ 600 nm periodicity. (c) AFM topography and (d) IR s-SNOM of the subregion shown in (a) (black square). (e) Spatio-spectral transect along the dashed line in (d) demonstrating the amide I band with its spatial < 100 nm confinement in the interlamellar organic layer.

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