'Femtomolar Optical Tweezers' May Enable Sensitive Blood Tests
Thursday, November 13, 2008 - 12:49
in Physics & Chemistry
(PhysOrg.com) -- Cutting-edge “tweezers” are so sensitive that they can feel the tell-tale tug of tiny concentrations of pathogens in blood samples, yet don`t ever need to be sterilized—or even held—as they are ephemeral and weightless.