behavior reflects the dynamics within the hydrogel network, where at low frequencies the material has sufficient time to reorganize, while at higher ones, the material crosslinking prevails, so that the hybrid material exhibits a gel-like character. Despite a few exceptions, the incorporation of nano-objects mainly stiffens the material due to additional crosslinking and surface interactions. In agreement with this, hybrid hydrogel shows a more robust hierarchical structure and generally higher G' values compared to the bare counterparts, while the value of the crossover frequency (G' > G") decreases. As a main tendency, the increase in elasticity of the material positively correlates with the content in nano-objects. But it is also important to pay attention to their potential aggregation, which can lead to a decrease in crosslinking density and, ultimately, a reduction in the material elastic modulus. On the contrary, well dispersed nano-objects may have no effect on G'. The lack of a noticeable impact on the overall properties of the gel may also be attributed to the fact that NPs occupy a small volume within the hydrogel resulting in only localized stiffening. Accordingly, Gel hydrogels with covalently photocrosslinked acryloyl silica NPs (0.02% only of the whole hydrogel volume)