Super Sensitive Biosensor
July 31, 2012 | Terry Sharrer
With the US Preventive Services Task Force recently downgrading PSA screening to Class D, it may seem like the wrong time for researchers in England and Spain to announce an astonishingly more sensitive PSA test, but this biomarker breakthrough could be used for earliest detection of any kind of cancer. The nanoparticle, made of gold with a silver crystal coating and attached antibodies, is sensitive enough to detect PSA at 0.000000000000000001 grams per milliliter. MORE