The drug heparin is widely used to prevent blood from clotting in medical procedures ranging from dialysis to open-heart surgery. With a $6 billion market, it is one of the most common drugs used in hospitals today. But its widespread use belies its crude origins: more than 90 years after it was discovered, heparin is still made from pig intestines. But a new microfluidics chip, which mimics the actions of one of the cell's most mysterious organs, may help change that. (source: technologyreview.com)
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