DISEASE/PESTICIDE TESTS
May 1st, 2005
BY MONICA DOBIE and KEITH NUTHALLSENSOR PROJECTSRESEARCHERS from Canada's University of Toronto have designed a screening tool that lights up when dangerous pathogens and diseases are detected in liquid samples, including water and bodily fluids. A study in Bioorganic & Medicinal Chemistry Letters explains the probe crushes cells to release DNA, then untangles a strand of DNA, (there are usually two combined), of a particular pathogen. That strand will look for another related DNA strand in a sample, then combine. When they do, a special fluorescent dye ...
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