IR-Based Novel Device for Real-Time Online Acquisition of Fish Heart ECG Signals

We developed an infrared (IR)-based real-time online monitoring device (US Patent No: US 10,571,448 B2) to quantify heart electrocardiogram (ECG) signals to assess the water quality based on physiological changes in fish. The device is compact, allowing us to monitor cardiac function for an extended...

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Bibliographic Details
Published in:Environmental science & technology 2022-04, Vol.56 (7), p.4262-4271
Main Authors: Ren, Baixiang, Yu, Yaxin, Poopal, Rama-Krishnan, Qiao, Linlin, Ren, Baichuan, Ren, Zongming
Format: Article
Language:English
Subjects:
Animals
Copper sulfate
Deltamethrin
Ecotoxicology and Public Health
EKG
Electrocardiography
Fishes
Heart
Microcontrollers
P waves
Quality assessment
Real time
Rechargeable batteries
S waves
Signal processing
Signal Processing, Computer-Assisted
Signal transmission
Swimming
Water Quality
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Summary:We developed an infrared (IR)-based real-time online monitoring device (US Patent No: US 10,571,448 B2) to quantify heart electrocardiogram (ECG) signals to assess the water quality based on physiological changes in fish. The device is compact, allowing us to monitor cardiac function for an extended period (from 7 to 30 days depending on the rechargeable battery capacity) without function injury and disturbance of swimming activity. The electrode samples and the biopotential amplifier and microcontroller process the cardiac-electrical signals. An infrared transceiver transmits denoised electrocardiac signals to complete the signal transmission. The infrared receiver array and biomedical acquisition signal processing system send signals to the computer. The software in the computer processes the data in real time. We quantified ECG indexes (P-wave, Q-wave, R-wave, S-wave, T-wave, PR-interval, QRS-complex, and QT-interval) of carp precisely and incessantly under the different experimental setup (CuSO4 and deltamethrin). The ECG cue responses were chemical-specific based on CuSO4 and deltamethrin exposures. This study provides an additional technology for noninvasive water quality surveillance.
ISSN:0013-936X
1520-5851
DOI:10.1021/acs.est.1c07732