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Figure 2


Fig. 2. Transmission X-ray microscopy (TXM) images of setae in the beetle Gastrophysa viridula (a) not in contact and (b) in a fresh contact with a Si3N4 membrane surface. Please note changes in the shape and optical density of spatula. The optical density scales with the thickness of the material, if one assumes the same density of the material of the spatula.