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. 2017 Aug 14;7:8050. doi: 10.1038/s41598-017-08027-5

Figure 3.

Figure 3

Film forming solution: 12% CA in 1,4-dioxane (Group 2 in Table 1); (a) A schematically drawn double layer hollow fiber where the macroporous outer layer encircles the support layer hollow fiber, (b) Cross sectional view of the porous film under scanning electron microscope (SEM), (c) Surface of the film under SEM, (d) pore size distribution [1384 number of pores in 10.04 × 103 µm2 of the measured area] of the surface of the film forming layer measured by IMS V15Q4 (Imagic Bildverarbeitung AG, Glattbrugg, Switzerland).