Fig. 1
Accumulation of PS-NPs in the intestinal tissues of zebrafish and changes in related growth parameters. A Transmission electron microscopy (TEM) observation of PS-NPs in intestinal tissue (0.2 μm), a, b, c, d, e, and f represent the group of 0 − , 0 + , 15 − , 15 + , 150 − , and 150 + , respectively; the blue arrow points to the NPs. B The number of NPs in intestine tissue (n = 3 replicates). C ISI (%). D K (100 g/cm3). E FI (g). Data are expressed as means ± standard deviation (SD). *p < 0.05 indicate significant differences between exposure groups and the control group; #p < 0.05 indicate significant differences between vitamin D-high and vitamin D-low groups at the same PS-NPs concentration