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. 2019 Oct 21;9:15024. doi: 10.1038/s41598-019-51555-5

Figure 4.

Figure 4

Effect of the concentration of DMAAm (A,B), laponite nanoparticles (C,D), water (E,F) and Fe3O4 nanoparticles (G,H) in the pre-gel solutions or mixtures on the storage modulus G’ (closed symbols) and loss modulus G” (opened symbols) of the three different corresponding hydrogels: PD hydrogels, NCHs, and MR_NCHs. Frequency Sweep curves of the hydrogels were obtained at a constant strain of 1% determined from the LVE regions. The G’ and G” taken at the angular frequency of 10.5 rad/s in (A,C,E,G) are presented in (B,D,F,H).