Right now, if a technician working in a lab in rural Angola needs to run a test to see if a patient is infected with Zika or Ebola, they’ll likely use a paper test imported from somewhere else–and if ...

Uncertainty and fear about coronavirus’ spread and the course of the illness is causing shockwaves in our daily lives. A simple paper test could provide answers to basic questions and shape a sensible ...

Color change: Paper tests, such as those shown here, could make it possible to diagnose a range of diseases quickly and cheaply. A small drop of liquid, such as blood or urine, wicks in through the ...

Paper-based diagnostic tests such as rapid COVID-19 assays have broadened access to diagnostic tests beyond the lab. But historically, they have been limited to a binary readout: either yes or no. At ...