How sensors monitor and measure our bodies and the world around us

Sensors are everywhere, from your phone to your medicine cabinet. Here's how they turn events in the physical world into words and numbers.

Nicole McFarlane, Associate Professor of Electrical Engineering, University of Tennessee • conversation
Dec. 7, 2020 ~4 min

A tiny circular racetrack for light can rapidly detect single molecules

An optical sensor that can detect individual molecules promises early detection of diseases and environmental contamination.

Judith Su, Assistant Professor of Biomedical Engineering and Optical Sciences, University of Arizona • conversation
Oct. 22, 2020 ~5 min

Dynamic tattoos promise to warn wearers of health threats

Researchers are developing tattoo inks that do more than make pretty colors. Some can sense chemicals, temperature and UV radiation, setting the stage for tattoos that diagnose health problems.

Carson J Bruns, Assistant Professor, University of Colorado Boulder • conversation
Sept. 24, 2020 ~8 min