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A new kind of soft hydrogel materials, composed of two interpenetrating networks, one consisting of dynamically cross-linked polymer chains and the other of entangled wormlike surfactant micelles, was developed [1-3]. The networks interlaced into a bicontinuous structure because of the segregation between polymer-rich and surfactant-rich microphases. The resulting material demonstrates significantly enhanced rheological properties as compared to the individual components taken separately, whereas dynamic character of the cross-links in the first network and non-covalent chains of the second network provide to the hydrogel a high responsiveness to external triggers. Such materials are very promising for the application in many areas, ranging from enhanced oil recovery to biomedical uses. Acknowledgement. This work is financially supported by the Russian Science Foundation (project № 21-73-30013).