We explore the chemistry behind how a little machine can tell how much alcohol you've had. We explore the chemistry behind how a little machine can tell how much alcohol you've had. Reactions is ...

With each breath, humans exhale more than 1,000 distinct molecules, producing a unique chemical fingerprint or “breathprint” rich with clues about what’s going on inside the body. For decades, ...

Qizhong Liang, a PhD candidate in JILA and the Department of Physics at the University of Colorado Boulder, demonstrates how the laser-based breathalyzer works, in the Ye lab at JILA. Ultimately, the ...

A new breathalyzer is now available that works with smartphones and mobile apps. Breathometer ($49.99) is small enough to fit on a keychain and plugs into the audio jack of a smartphone. Along with a ...