Figure 7

Correlated IR s-SNOM, and NanoSIMS of nacre region. (a) The AFM height and (b) s-SNOM phase map at 1660 cm−1 of the terminus of a prism-covering matrix extension. Correlated NanoSIMS correlates the presence of (c) 12C14N and (d) 40Ca16O. (j) A correlated linecut of the s-SNOM and NanoSIMS images (white dashed line in (c)) is displayed in (e) and shows the correlation between the amide-I response and 12C14N, 12C12C, and 12C.