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Figure 5


Fig. 5. Chemical and mechanical characterization of Nereis jaws following Zn manipulation. EDS Zn maps of jaw cross sections (A) before treatment, (B) after treatment with EDTA and (C) following treatment in ZnCl2. Indents were made following each treatment in regions indicated by the white lines (B). Both lines include indents in Zn-depleted and Zn-rich zones. (D) Hardness, H, and Young's modulus, E, are presented as a function of lateral position across the sample surface. Comparison of untreated (red line) and EDTA treated (blue line) samples indicates that both H and E are substantially decreased in regions where Zn has been removed. A significant recovery of initial H and E is observed following reconstitution of Zn in these regions (green line).





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