Rapid <i>In Situ</i> MRI Traceable Gel-forming Dual-drug Delivery for Synergistic Therapy of Brain Tumor.

The R1 relaxivity of the BSA NPs incorporated hydrogel Gd was determined to be 3.72 mM -1 s -1 at 7-T MR scanner and exhibited an obvious trend of T1 positive contrast with the increase of gadolinium content, while there was a little stronger T1 positive contrast than commercial DTPA-Gd (3.42 mM -1 s -1 ), both has high correlation ratio (r 2 = 0.981 for DTPA-Gd; r 2 = 0.989 for hydrogel Gd ) (Figure 2 D).

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