Fig. 4
From: Biomineralization of calcium phosphate revealed by in situ liquid-phase electron microscopy
Post situ characterization of the in situ synthesized particles. a–c HAADF STEM images of a (the scale bar represents 1 µm), the in situ region of interest and b (the scale bar represents 50 nm), the same area once the silicon nitride microchips have been opened, and shown at c, higher magnification and as d, an EELS Ca-map as extracted from the post situ e, EELS spectra of the Ca-L2,3 edge that demonstrates these particles are Ca-based. The Ca-L2,3-edge was identified inside mineralized particles (red), and absent in the surrounding regions (blue)
