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Open AccessArticle

Reflectance-Based Organic Pulse Meter Sensor for Wireless Monitoring of Photoplethysmogram Signal

1
Department of Applied Science for Electronics and Materials, Kyushu University, Fukuoka 816-8580, Japan
2
COI STREAM, Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, Fukuoka 819-0395, Japan
3
Konica Minolta, Inc., Ishikawa-cho, Hachioji 192-8505, Japan
4
Global Innovation Center (GIC), Kyushu University, Fukuoka 816-8580, Japan
*
Author to whom correspondence should be addressed.
Biosensors 2019, 9(3), 87; https://doi.org/10.3390/bios9030087
Received: 19 June 2019 / Revised: 2 July 2019 / Accepted: 3 July 2019 / Published: 10 July 2019
(This article belongs to the Special Issue Bioelectric Sensors)
This paper compares the structural design of two organic biosensors that minimize power consumption in wireless photoplethysmogram (PPG) waveform monitoring. Both devices were fabricated on the same substrate with a red organic light-emitting diode (OLED) and an organic photodiode (OPD). Both were designed with a circular OLED at the center of the device surrounded by OPD. One device had an OLED area of 0.06 cm2, while the other device had half the area. The gap distance between the OLED and OPD was 1.65 mm for the first device and 2 mm for the second. Both devices had an OPD area of 0.16 cm2. We compared the power consumption and signal-to-noise ratio (SNR) of both devices and evaluated the PPG signal, which was successfully collected from a fingertip. The reflectance-based organic pulse meter operated successfully and at a low power consumption of 8 µW at 18 dB SNR. The device sent the PPG waveforms, via Bluetooth low energy (BLE), to a PC host at a maximum rate of 256 kbps data throughput. In the end, the proposed reflectance-based organic pulse meter reduced power consumption and improved long-term PPG wireless monitoring. View Full-Text
Keywords: organic optoelectronic device; pulse meter; biosensor; Bluetooth low energy (BLE); photoplethysmogram (PPG) organic optoelectronic device; pulse meter; biosensor; Bluetooth low energy (BLE); photoplethysmogram (PPG)
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MDPI and ACS Style

Elsamnah, F.; Bilgaiyan, A.; Affiq, M.; Shim, C.-H.; Ishidai, H.; Hattori, R. Reflectance-Based Organic Pulse Meter Sensor for Wireless Monitoring of Photoplethysmogram Signal. Biosensors 2019, 9, 87. https://doi.org/10.3390/bios9030087

AMA Style

Elsamnah F, Bilgaiyan A, Affiq M, Shim C-H, Ishidai H, Hattori R. Reflectance-Based Organic Pulse Meter Sensor for Wireless Monitoring of Photoplethysmogram Signal. Biosensors. 2019; 9(3):87. https://doi.org/10.3390/bios9030087

Chicago/Turabian Style

Elsamnah, Fahed; Bilgaiyan, Anubha; Affiq, Muhamad; Shim, Chang-Hoon; Ishidai, Hiroshi; Hattori, Reiji. 2019. "Reflectance-Based Organic Pulse Meter Sensor for Wireless Monitoring of Photoplethysmogram Signal" Biosensors 9, no. 3: 87. https://doi.org/10.3390/bios9030087

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