Printed biophotonic sensors for blood and tissue oximetry
Oximetry, the technique for determining oxygen saturation, optically measures the light absorption of oxygenated and deoxygenated blood and tissue at two different wavelengths. In 2014, we demonstrated the first all-organic optoelectronic oximeter sensor composed of organic light-emitting diodes (OLEDs) and an organic photodiode (OPD) to accurately measure pulse rate and oxygenation with errors of 1% and 2%, respectively . This transmission-mode probe demonstrated that oximetry can be performed with organic optoelectronics. However, to realize the true potential of organic optoelectronics for oximetry, a reflection-mode operation is essential that allows sensor placement on different parts of the body. After optimizing the sensor design and the printing process, in 2017, we reported a reflection-mode organic oximeter probe and performed blood oxygenation measurements on the wrist .
All-organic optoelectronic sensor for pulse oximetry Nature communications, 2014 5,
Flexible blade-coated multicolor polymer light-emitting diodes for optoelectronic sensors Advanced Materials, 2017 29, 22.
Last modified: 2018-01-02