Fig. 7From: External magnetic field promotes homing of magnetized stem cells following subcutaneous injectionSPIONs and EGFP-labeled human MSCs under magnetic influence identified in skin tissue. c and (f) show only a few positive cells in the group that was not exposed to the magnetic field. b and (e) show SPIONs and EGFP-labeled human MSCs after 7 d when the wound healed. a and (d) show SPIONs and EGFP-labeled human MSCs transplanted subcutaneously in the skin of nude mice at 0 hBack to article page