Fig. 7From: Intensity-adjustable pain management with prolonged duration based on phase-transitional nanoparticles-assisted ultrasound imaging-guided nerve blockadeRepresentative toluidine blue staining images of the sciatic nerve at A 3 days and B 28 days after levobupivacaine + US and the RLBP + US treatments. C–E Cytokine levels in tissues after levobupivacaine + US and the RLBP + US treatments at different timesBack to article page