Researchers from UC Berkeley developed a pulse oximeter sensor that is made entirely from organic optoelectronics. The flexible oximeter can measure arterial oxygen saturation and heart rate, and performs as well as silicon-based pulse oximeters.

Organic-electronics pulse oximeter photo

The sensor is made from red and green flexible OLED lighting devices and an organic photodiode (OPD). Unlike regular devices, this new organic sensor device is thin, flexible and (theoretically) cheap.

Kyulux - Hyperfluoresence OLED emittersKyulux - Hyperfluoresence OLED emitters