Researchers have developed a mobile, noninvasive, ultrathin, stretchable, battery-operated electronic tattoo that simultaneously measures the heart’s electrical and mechanical activity ...

The e-tattoo works by measuring two key cardiac signals: the electrical activity of the heart via electrocardiography (ECG); and mechanical cardiac rhythm (subtle vibrations caused by heart ...

"Most heart conditions are not very obvious ... Wireless Electro‐Mechanical E‐Tattoo for Measuring Multiple Cardiac Time Intervals, Advanced Electronic Materials (2023).

As a continuation of an earlier chest e-tattoo ... electrical and mechanical, together can provide a much more comprehensive and complete picture of what's happening with the heart," Lu said.