(a) Schematic of major optical components of a SAXS experiment with a nanofocused beam. (b) X-ray dark field image of lyophilized murine fibroblasts on glass, recorded with the nano-SAXS setup. Micrograph of the sample from the on-axis microscope, right before scanning (inset). Scale bar, 20 μm. (c) X-ray dark field image of lyophilized naive hMSCs on Si3N4-membranes recorded with a micro-SAXS setup and micrograph of the sample before scanning (inset). Scale bar, 40 μm. To see this figure in color, go online.