PEG Antibodies in Bloodstream (IMAGE) Duke University Caption This is an artistic rendering of a new drug delivery system created by Stacey Qi, first author on the paper. The technology updates a popular delivery method that uses polyethylene glycol (PEG) to extend a drug's life by creating a new, shorter version featuring many bristles to avoid PEG antibodies. The drawing depicts troublesome antibodies (purple Ys) attacking the conventional PEG technology while leaving the modified version alone. Credit Stacey Qi, Duke University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.