Wearable, Luminescent Oxygen Sensor for Transcutaneous Oxygen Monitoring
- Wearable, Luminescent Oxygen Sensor for Transcutaneous Oxygen Monitoring
- 김유찬; 길혜준; Chang-Jin Lim; Soyeon Lee; Jin-Hoon Kim; Jin-Woo Park
- transcutaneous oxygen monitoring; luminescent oxygen sensing; wearable sensors; organic light-emitting diodes; organic photodiodes
- Issue Date
- ACS Applied Materials & Interfaces
- VOL 10-41034
- We present a new concept for a wearable oxygen (O2) sensor for transcutaneous O2 pressure (tcpO2) monitoring by combining the technologies of luminescent gas sensing and wearable devices. O2 monitoring has been exhaustively studied given its central role in diagnosing
various diseases. The ability to quantify the physiological distribution and real-time dynamics of O2 from the subcellular to the macroscopic level is required to fully understand mechanisms associated with both normal physiological and pathological conditions. Despite its profound biological and clinical importance, few effective methods exist for noninvasively quantifying O2 in a physiological setting. The wearable sensor developed here consists of three components: a luminescent sensing film attached onto skin by a carbon tape, an organic light-emitting diode (OLED) as a light source, and an organic photodiode (OPD) as a light detector. All the components are solution-processable and integrated on a plane in a bandage-like configuration. To verify the performance, tcpO2 variations by pressure-induced occlusion were measured in the lower arm and a thumb by the wearable sensor, and the results were comparable to those measured by a commercial instrument. In addition to its flexibility, other features of this sensor render it a potential low-cost solution for the simultaneous monitoring of tcpO2 in any part of a body.
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