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Body Heat, Fermentation Drive New Drug-Delivery "Micropump," Purdue University Study


9/12/2012 8:08:47 AM

Researchers have created a new type of miniature pump activated by body heat that could be used in drug-delivery patches powered by fermentation. The micropump contains Baker's yeast and sugar in a small chamber. When water is added and the patch is placed on the skin, the body heat and the added water causes the yeast and sugar to ferment, generating a small amount of carbon dioxide gas. The gas pushes against a membrane and has been shown to continually pump for several hours, said Babak Ziaie, a Purdue University professor of electrical and computer engineering and biomedical engineering.

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