The device assesses the levels of troponin, a protein in the blood. The level increases when blood is cut off from the heart and muscle is damaged.

Sangmin Jeon and his colleagues invented a thermometer-like device, which is a sensitive and an accessible test that will detect troponin in a simpler and a cost-effective way.
Jeon explained that the process involves a glass vial, specialized nanoparticles, a drop of ink and a skinny tube. When the human serum with troponin is mixed with the nanoparticles and put in the vial, the ink climbs up a protruding tube just like a thermometer.
The researchers concluded that with the help of their new device the number of deaths related to cardiovascular disease will decrease as three-quarters of this disease occur in low-and-middle-income countries that can’t afford costly machines for diagnosis.
Source-Medindia