Fig. 3: Degradation mechanism and products of the SNFM.
From: Sustainable nanofiltration membranes enable ultrafast water purification

a, Images of SNFM after 0, 3 and 6 months of natural soil degradation. b, SEM images of the SNFM surfaces degraded by soil microorganisms at 3 (left) and 6 (right) months (Magnification: 50,000×). c, Degradation rates of the SNFM based on soil microorganisms. Inset: snapshot of SNFM degradation by soil microorganisms at 0, 3 and 6 months. d, Per cent community abundance in the original soil and SNFM soil. e, Community abundance of different functional species in the original soil and SNFM soil. f, The abundance of enzymes in the original soil and SNFM soil. g, Degradation products of the SNFM. h, Effects of SNFM degradation products on the growth of E. coli. Inset: growth images of E. coli in a solution with SNFM degradation products. Error bars in h represent the s.d. (n = 3, n derived from different experimental units), and data are presented as mean values ± s.d.