Fig. 6.

a In vitro brightness intensity of LMM@BSA in a mildly acidic environment (pH = 5.0), distilled water or GSH aqueous solutions after soaking at 37 °C for 2 h; b T₁-weighted MR imaging of solution corresponding to a, unit: mg/mL; c in vivo relative brightness intensity of mice tumor after I.T. or I.V. injected with saline and LMM@BSA; d–f in vivo T₁-weighted MR imaging corresponded to c, (d control, e I.V., and f I.T.)