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. Author manuscript; available in PMC: 2022 Jun 21.
Published in final edited form as: Chem Rev. 2022 Feb 1;122(5):5317–5364. doi: 10.1021/acs.chemrev.1c00481

Figure 6. Magnetothermal actuation of superparamagnetic soft materials based on thermally responsive polymer matrices.

Figure 6.

The programmed shape changes of the composite structures are triggered by field-induced heating through thermal relaxation of the embedded superparamagnetic nanoparticles under alternating fields, which leads to (a) recovery of the shape memory polymer into the original shape or (b) deswelling (shrinkage) of the temperature-sensitive hydrogel in the form of bilayer structure.