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Accumulation of (a) 20 nm, (b) 40 nm, (c) 100 nm, (d) 500 nm nanoparticles at different time points after traumatic brain injury in mice. *p < 0.05 compared to their respective contralateral ROI, Student’s t-test. p < 0.05 compared to 3 h, 6 h, 13 h, and 24 h ipsilateral ROI, p < 0.05 compared to 3 h, 6 h, and 13 h ipsilateral ROI; Tukey’s post-hoc test. Error bars represents standard error of mean with n = 4 per group.
