期刊
ENVIRONMENTAL SCIENCE & TECHNOLOGY
卷 56, 期 7, 页码 4262-4271出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.est.1c07732
关键词
wireless device; real-time online biological monitoring; health indicator; water quality monitoring; emerging technology
资金
- National Natural Science Foundation of China [42077224]
- Natural Science Foundation of Shandong [ZR2020MD122]
- Social Livelihood Major Project of Jinan [201913004]
We developed an infrared-based real-time online monitoring device to assess water quality by quantifying heart electrocardiogram signals in fish. The device is compact and allows long-term monitoring without causing harm or disturbance to the fish. We accurately quantified ECG indexes of carp under different experimental conditions, which showed specific responses to different chemical exposures.
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.
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