Blood, Sweat, and Water: New paper analytical devices easily track health and environment

Using paper, Tufts researchers have devised inexpensive, shelf-stable, easy-to-use tests that bring lab-level precision to home and the wider world.
A finger leaving a bit of blood on a piece of paper. Inexpensive, shelf-stable, easy-to-use tests bring lab-level precision to the home and field for blood, water, and lactic acid in sweat tests.