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Fig. 2 | Journal of Nanobiotechnology

Fig. 2

From: Magnetic field distribution modulation of intrathecal delivered ketorolac iron-oxide nanoparticle conjugates produce excellent analgesia for chronic inflammatory pain

Fig. 2

Demonstration of the calculated amount of Keto-SPIO injected into the mice spinal cord. Ketorolac exhibited good concentration-dependent absorbance on OD 381 nm (a). The amount of ketorolac and iron nanoparticles within the Keto-SPIO can be calculated via the substrate in the residual ketorolac in the supernatant after synthesis (b)

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