Recommendable! Amazing stuff! Looks like synthetic hydrogels are in the news these days. See also my recent blog about this subject here. And it appears that researchers are making good progress regarding hydrogels.
"... Here we present a strategy to produce a multi-length-scale hierarchical hydrogel architecture using a freezing-assisted salting-out treatment. The produced poly(vinyl alcohol) hydrogels are highly anisotropic, comprising micrometre-scale honeycomb-like pore walls, which in turn comprise interconnected nanofibril meshes. ..."
Here is the underlying research article:
Strong tough hydrogels via the synergy of freeze-casting and salting out (no public access)
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