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. 2022 Jun 25;8(7):404. doi: 10.3390/gels8070404

Figure 2.

Figure 2

Physical characterization of three BSAMA cryogels (B5, B10, and B15). (A) Scanning electron microscopic (SEM) and confocal microscopic images (red: the wall of cryogels). Scale bar: 100 μm in SEM; 200 μm in confocal. (B) Pore size distribution. Black circles, blue squares, and red triangles represent the pore sizes of B5, B10, and B15, respectively. (C) Pore connectivity was demonstrated as a porosity (%). (D) Swelling ratio. n = 3, **: p < 0.01, ***: p < 0.005, ****: p < 0.001, NS means no significant difference between the samples at the extremities of the line. 18 pores were counted in every kind of BSAMA cryogels.