Figure 3.
In vivo MR image of hydrogel and hydrogel-embedded MIN6 cells after subcutaneous transplantation. 5 × 106 CSPIO-labeled MIN6 cells embedded in mPEG-poly(Ala) hydrogels were subcutaneously transplanted into the right flank of a nude mouse. The hydrogel without MIN6 cells was transplanted into the left flank as a negative control. The recipient was scanned by a 7.0 T MRI system with coronal (upper panel) and transverse (lower panel) sections. The graft of CSPIO-labeled MIN6 cells was indicated by solid arrows and the hydrogel without MIN6 cells was indicated by dashed arrows.