Lim, Chang-Jin Lee, Soyeon Kim, Jin-Hoon Kil, Hye-Jun Kim, Yu-Chan Park, Jin-Woo 2024-01-19T21:04:20Z 2024-01-19T21:04:20Z 2021-09-05 2018-12-05 1944-8244 https://pubs.kist.re.kr/handle/201004/120586 We present a new concept for a wearable oxygen (O-2) sensor for transcutaneous O-2 pressure (tcpO(2)) monitoring by combining the technologies of luminescent gas sensing and wearable devices. O-2 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 O-2 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 non invasively quantifying O-2 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, tcpO(2) 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 tcpO(2) in any part of a body. English American Chemical Society ORGANIC PHOTODIODES SENSING FILMS HYPOXIA Wearable, Luminescent Oxygen Sensor for Transcutaneous Oxygen Monitoring Article 10.1021/acsami.8b13276 1 ACS Applied Materials & Interfaces, v.10, no.48, pp.41026 - 41034 ACS Applied Materials & Interfaces 10 48 41026 41034 scie scopus 000452694100010 2-s2.0-85058114499 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science Article ORGANIC PHOTODIODES SENSING FILMS HYPOXIA transcutaneous oxygen monitoring luminescent oxygen sensing wearable sensors organic light-emitting diodes organic photodiodes