Fig. 4
From: Visualizing the ultra-structure of microorganisms using table-top extreme ultraviolet imaging
High-resolution EUV ptychography reconstruction of E. coli bacteria a shows the complex transmission of multiple E. coli bacteria prepared on a Si3N4 membrane, where the image brightness represents the transmitted amplitude, and the hue represents the phase. For a single E. coli cell in the state of cell division, which is indicated by a pink box in a. the scattering quotient is calculated and shown in b. Low values of the scattering quotient correspond to the cell wall, which is dominated by carbon hydrates, while the large scattering values correspond to proteins, lipids, and nucleic acid