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[International Journal] [Frontispiece] Wearable Photomedicine for Neonatal Jaundice Treatment using Blue Organic Light-Emitting Diodes (OLEDs): Toward Textile-based Wearable Phototherapeutics
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Seungyeop Choi+, Yongmin Jeon+, Jeong Hyun Kwon+, Chunhwa Ihm*, Seung Yeon Kim*, and Kyung Cheol Choi*

Advanced Science, December , 2022

Published

vol 9, no , pp 2204622

Abstract

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Neonatal jaundice is a very common disease in newborns and can lead tobrain damage or death in severe cases. Phototherapy with light-emitting diode(LED) arrays is widely used as the easiest and fastest way to relieve jaundicein newborns, but it has distinct disadvantages such as loss of water in thepatient, damage to the retina, and separation from parents. In this paper, anovel light source-based phototherapy for neonatal jaundice is proposedusing a textile-based wearable organic light-emitting diode (OLED) platformthat can move flexibly and conform to the curvature of the human body. Thesoft and flexible textile-based blue OLED platform is designed to have a peakwavelength of 470 nm, suitable for jaundice treatment, and showsperformance (>20¥ìWcm−2nm−1) suitable for intensive jaundice treatmenteven at low voltage (<4.0 V). The textile-based OLEDs fabricated in this studyexhibit an operating reliability of over 100 h and low-temperature operation(<35¡ÆC). The results of an in vitro jaundice treatment test using a large-areablue OLED confirm that the bilirubin level decreases to 12 mg dL−1with 3 h ofOLED irradiation.