Abstract
Chemical engineers are getting closer to developing a method for taking insulin and other medications orally instead of by injection. Purdue University researchers, in findings discussed in Chicago during a national meeting of the American Chemical Society (26–30 August), have demonstrated that the method works in a chemical environment that mimics the stomach and upper small intestine. The particles for drug delivery are about one-hundredth of the width of a human hair and protect medicines from the harsh environment of the stomach until they can be released in the intestines and absorbed into the blood. DM
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