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. 2019 Feb 18;20(4):882. doi: 10.3390/ijms20040882

Figure 4.

Figure 4

Representative fluorescence microscopy images of zebrafish embryos. (a) Images of embryos exposed to 0 (control) or 50 mg/L of positively charged SiO2 NPs (25 nm) at 24, 48, and 72 hpf and (b) embryos exposed to 25 mg/L of positively charged SiO2 NPs (25 nm) at 72 hpf.