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. 2021 Jan 23;6(8):2281–2290. doi: 10.1016/j.bioactmat.2020.12.027

Fig. 2.

Fig. 2

Cytotoxicity test of tFNAs and tFNAs-Ery. a. HUVEC cells proliferation analyzed by CCK-8 assay after being cocultured with tFNAs and tFNAs-Ery at 24 h and 48 h. Statistical analysis (n = 4): *, p < 0.05; **, p < 0.01. b. Observation of HUVEC morphological changes after exposure to tFNAs and tFNAs-Ery by fluorescent microscopy. c. L929 cells proliferation analyzed by CCK-8 assay after being cocultured with tFNAs and tFNAs-Ery at 24 h and 48 h. Statistical analysis (n = 4): *, p < 0.05; **, p < 0.01. d. Observation of L929 morphological changes after exposure to tFNAs and tFNAs-Ery by fluorescent microscopy.