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Posted: Oct 27, 2014
Prostate cancer, kidney disease detected in urine samples on the spot
(Nanowerk News) When you flush the toilet, you may be discarding microscopic warning signs about your health.
But a cunningly simple new device can stop that vital information from “going to waste.”
Brigham Young University chemist Adam Woolley and his students made a device that can detect markers of kidney disease and prostate cancer in a few minutes. All you have to do is drop a sample into a tiny tube and see how far it goes.
That’s because the tube is lined with DNA sequences that will latch onto disease markers and nothing else. Urine from someone with a clean bill of health would flow freely through the tube (the farther, the better). But even at ultra-low concentrations, the DNA grabs enough markers to slow the flow and signal the presence of disease.
Grad student Debolina Chatterjee (pictured) co-authored the paper with Professor Adam Woolley.
“In a disease state, this particular marker is equal to about one billionth of a percent of the content of urine.” Woolley said. “We can detect close to those levels. If we can get below that, it would give us better sensitivity for somebody at an early stage of the disease.”