"Our sensor combines nanostructures made of DNA with quantum dots and CRISPR gene editing technology, to detect faint biomarker signals using second harmonic generation," said team leader Han Zhang ...

Investigators are using signal sniffer to try to detect Nancy Guthrie's pacemaker.

With this multipurpose health testing device, you can measure your body temperature and blood oxygen saturation, take an ECG, and listen to your heart and lungs with a pair of headphones.