Development of a Patch-Type Flexible Oxygen Partial Pressure Sensor

Abstract

Oxygen is essential for energy production in living bodies, and oxygen measurement methods such as optical oximetry and oxygen electrode techniques have been used at bedsides and in experimental benches. In this study, we propose a new flexible oxygen sensor that can be placed on curved surfaces such as organs or skin. The partial pressure of oxygen in the attached area can be directly measured by a flexible polymer-based oxygen sensor film by applying a phosphorescence lifetime method. We prototyped a sensor device that combines a light emitting diode, photodiode, and sensor film and obtained reasonable calibration results.