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Nature’s first known solid ‘nanofoam’ helps pollen to ride the wind

3D reconstruction lateral view of the full grain of a modern pine pollen specimen from x-ray nanotomography data.

The foamy structure of a pollen grain’s outer wall is visible in a reconstructed image of pollen from a modern pine tree (family Pinaceae). Credit: R. Cojocaru et al./Sci. Adv.

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Nature 602, 550 (2022)



  1. Cojocaru, R. et al. Sci. Adv. 8, eabd0892 (2022).

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