The left part of the image shows a photograph of the sample, measuring approximately 7 x 10 x 5mm3. The part studied with X-rays was the indicated subvolume of 7 x 2 x 1mm3. The result, a detailed 3D map of chemical bonds, is visualised here as a 2-D cut through the subvolume, shown on the right, where the different colors represent the different chemical carbon bonds present in the sample. Credit: Simo Huotari (Helsinki University). With permission by Nature Materials

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