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. 2020 Aug 4;21(15):5571. doi: 10.3390/ijms21155571

Figure 5.

Figure 5

Cell viability from MTT assays of prostate cancer (a,d), neuroblastoma (b,e) and endothelial (c,f) cells incubated for 24 h (a–c) or 48 h (d–f) with the hybrid GO@T samples at increasing content of GO nanosheets (10–30 µg/mL concentration range) and Tetra(HPRG)-Fam peptide (3–6 µM concentration range). The negative control of untreated cells (CTRL) and the positive controls of cells treated with the peptide alone or the bare GO or the peptide mixtures are included as reference. Values (means ± SEM) are from three independent experiments. Results are expressed as percentage with respect to CTRL. Student’s t-test was used to compare cell viability measurements in all experimental conditions. (*) p < 0.05, (**) p < 0.01, (***), p < 0.001, (****) p < 0.0001 vs. CTRL, (#) p < 0.05, (##) p < 0.01, (###) p < 0.001, (####) p < 0.0001 vs. the corresponding GO reference sample.