Extended Data Fig. 6: Representative blood vessel staining images in three-month diabetic C57BL/6 mice.

Blood vessel staining (brown) using MECA-32 antibody on tissues surrounding SC implanted catheter from different groups at day 14, 30, 60, and 90 post-implantation in three-month diabetic C57BL/6 mice. Skin tissue samples collected from mice without implantation surgery were used as a control. Arrow indicates newly formed blood vessels around the zwitterionic gel treated catheter. C: catheter. Scale bar, 100 μm.