Circuit Board for Medical Test Reader (IMAGE)
Caption
This green circuit board contains giant magnetoresistance (GMR) sensors (one sensor shown in expanded view) like those that "read" data on a computer hard drive. In a testing method demonstrated by University of Utah scientists, the board would serve as the heart of card-reader that would be used for medical or environmental tests. A credit card-like sample stick containing, blood, saliva, water or other liquids would be swiped through the reader, producing electrical currents that could indicate if any of the samples contained pollutants or substances associated with various diseases.
Credit
Michael Granger, University of Utah
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