20 Sep '12, 12pm

Body Heat-Activated Pump Could Dispense Medication On Contact

Transdermal patches are already in use as an alternative form of dispensing medication . Of particular use when medication is very powerful, or needs to be dispensed slowly over time, these patches allow drugs to be absorbed through the skin. The only problem is, these transdermal patches can only be used when the medication is made up of molecules that are small enough to be absorbed through the wearer’s skin. In an effort to expand use of the transdermal patch to medications with larger molecules, researchers at Purdue University have developed a tiny micropump that could be used to drive drugs under the skin automatically. Rather than devise a bulky gadget that would need batteries, the scientists have built a pump that is activated by body heat and relies on the natural process of fermentation to trigger the medication flow. In a typical transdermal patch, drugs are pl...

Full article: http://www.treehugger.com/clean-technology/body-heat-acti...

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