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POF-yarn weaves: controlling the light out-coupling of wearable phototherapy devices.
Fabrizio Spanó, 1 Gian-Luca Bona, 2 Brit M. Quandt, Marisa S. Pfister, Jörn F. Lübben, René M. Rossi, Luciano F. Boesel
1  Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
2  ETH Zurich, Swiss Federal Institute of Technology, Department of Information Technology and Electrical Engineering, Gloriastrasse 35, 8092 Zurich, Switzerland

Published: 05 September 2017 by The Optical Society in Biomedical Optics Express
The Optical Society, Volume 8; 10.1364/BOE.8.004316
Abstract: Neonatal jaundice (hyperbilirubinaemia) is common in neonates and, often, intensive blue-light phototherapy is required to prevent long-term effects. A photonic textile can overcome three major incubator-related concerns: Insulation of the neonate, human contact, and usage restraints. This paper describes the development of a homogeneous luminous textile from polymer optical fibres to use as a wearable, long-term phototherapy device. The bend out-coupling of light from the POFs was related to the weave production, e.g. weave pattern and yarn densities. Comfort, determined by friction against a skin model and breathability, was investigated additionally. Our textile is the first example of phototherapeutic clothing that is produced sans post-processing allowing for faster commercial production.
Keywords: (220.0220) Optical Design and Fabrication, (060.2380) Fiber optics sources and detectors, (330.5380) Physiology
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