Figure 2

Figure 2

ROS detoxification effect of SmPNPs on A. hydrophila challenged zebrafish larvae. (A) Fluorescence images of head, pericardia, and tail areas were detected as follows: A-1, A-1′; Negative control (without SmPNPs exposure or A. hydrophila challenge), A-2, A-2′; Control (without SmPNPs exposure, but with A. hydrophila challenged), A-3, A-3′; SmPNPs (25 µg/mL) exposed and A. hydrophila challenged, A-4, A-4′ SmPNPs (50 µg/mL) exposed and A. hydrophila challenged. (B) The graph represents the percentage of fluorescence intensity compared to the untreated control group. Values were presented as means plus or minus standard error (± SE), and the asterisk (*) marks are used to indicate the significant difference compared to the respective controls (One-way ANOVA, unpaired two-tailed t-test, * p < 0.05).