Figure 4.
In vivo bioluminescence images of hydrogel and hydrogel-embedded MIN6 cells after subcutaneous transplantation; 5 × 106 luciferase-transfected 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. Recipients were imaged by in vivo imaging system (IVIS). (A) The bioluminescence image of a representative recipient. (B) The signal intensities (rigion-of-interest, ROI) of bioluminescence images for all recipients.