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. 2021 Feb 9;11:3428. doi: 10.1038/s41598-021-82963-1

Figure 4.

Figure 4

SEM images of surface morphology distinctions of (A) PVA, (B) PVA-K0.1, (C) PVA-K0.25, and (D) PVA-K0.5 hydrogels. The arrows point to kaolin particles inside the network of the hydrogels. (E) Pores size of PVA and PVA/Kaolin hydrogels. Data are presented as means ± SD (***p < 0.001, and *p < 0.05).