Fidget spinner as centrifuge separates blood plasma (video)

Some people use fidget spinners -- flat, multi-lobed toys with a ball bearing at the center -- to diffuse nervous energy or whirl away stress. Now, researchers have found a surprising use for the toys: separating blood plasma for diagnostic tests. The new approach, reported in ACS' journal Analytical Chemistry, could be useful for medical applications in regions of the world that lack electricity and other resources. Read more