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Joint residence of the injected nanosystem. (–a) Representative IVIS images of mice knee joints over 28 days after injection of fluorescent HA, DNAHA, HA‐SNAs and HA‐SNAs+NIR. Fluorescence scale: max = 7.0 × 107, min = 1.0 × 107. b) Time course of fluorescent radiant efficiency within joints corresponding to a). n = 3. Half‐lives are statistically different for each dataset (p < 0.05).
