Fig. 3.
Normal morphology was observed in the mPEG-RBC. Shown are scanning electron micrographs (×2,300) of control and mPEG-derivatized (1.2 mmol/L) RBC. RBC were derivatized with 1.2 mmol/L cyanuric chloride–activated mPEG at 4°C for 30 minutes in PBS (pH 9.2).