A Multi-Wavelength Opto-Electronic Patch Sensor to Effectively Detect Physiological Changes against Human Skin Types

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 develo...

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Bibliographic Details
Published in:Biosensors (Basel) 2017-06, Vol.7 (2), p.22
Main Authors: Yan, Liangwen, Hu, Sijung, Alzahrani, Abdullah, Alharbi, Samah, Blanos, Panagiotis
Format: Article
Language:English
Subjects:
Adolescent
Adult
Age
auto adaptive adjustment
Biosensing Techniques - methods
Change detection
Heart rate
Humans
Illumination
In vivo methods and tests
Male
Minority & ethnic groups
multi-wavelength
Optics and Photonics
opto-electronic patch sensor (OEPS)
Optoelectronic devices
Photoplethysmography
Physiology
Pigments
Pigments, Biological - isolation & purification
Pigments, Biological - metabolism
Sensors
Signal Processing, Computer-Assisted
Skin
Skin - metabolism
Skin Pigmentation - physiology
skin pigments
Skin tests
Spectrometry
Von Luschan’s chromatic scale (VLCS)
Wavelength
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Summary: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 ( 0.09, = 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.
ISSN:2079-6374
2079-6374
DOI:10.3390/bios7020022