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Title: A multi-wavelength opto-electronic patch sensor to effectively detect physiological changes against human skin types
Authors: Yan, Liangwen
Hu, Sijung
Alzahrani, Abdullah
Alharbi, Samah
Blanos, Panagiotis
Keywords: Multi-wavelength
Auto adaptive adjustment
Opto-electronic patch sensor (OEPS)
Skin pigments
Von Luschan’s chromatic scale (VLCS)
Issue Date: 2017
Publisher: MDPI
Citation: YAN, L. ...et al., 2017. A multi-wavelength opto-electronic patch sensor to effectively detect physiological changes against human skin types. Biosensors, 7(2): 22.
Abstract: Different skin pigments among various ethnic group people have an impact on spectrometric illumination on skin surface. To effectively capture photoplethysmographic (PPG) signals, a multi-wavelength opto-electronic patch sensor (OEPS) together with a schematic architecture of electronics were developed to overcome the drawback of present PPG sensor. To perform a better in vivo physiological measurement against skin pigments, optimal illuminations in OEPS, whose wavelength is compatible with a specific skin type, were optimized to capture a reliable physiological sign of heart rate (HR). A protocol was designed to investigate an impact of five skin types in compliance with Von Luschan’s chromatic scale. Thirty-three healthy male subjects between the ages of 18 and 41 were involved in the protocol implemented by means of the OEPS system. The results show that there is no significant difference (p: 0.09, F = 3.0) in five group tests with the skin types across various activities throughout a series of consistent measurements. The outcome of the present study demonstrates that the OEPS, with its multi-wavelength illumination characteristics, could open a path in multiple applications of different ethnic groups with cost-effective health monitoring.
Description: This is an Open Access Article. It is published by MDPI under the Creative Commons Attribution 4.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/
Version: Published
DOI: 10.3390/bios7020022
URI: https://dspace.lboro.ac.uk/2134/26129
Publisher Link: http://dx.doi.org/10.3390/bios7020022
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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