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Hydrogels

DNA bulks up

Since the 1940s DNA has been known as the genetic material connected to heredity, and from the early 1980s it has also been considered as a potential structural material for nanoscale construction. Now, a hydrogel made entirely of DNA brings this molecule into the realm of bulk materials.

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Figure 1: Short strands of complementary DNA pair up (step 1) according to their sequences of nucleotide bases, and form flexible, branched junctions — the building blocks of the DNA hydrogel.

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LaBean, T. DNA bulks up. Nature Mater 5, 767–768 (2006). https://doi.org/10.1038/nmat1745

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