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Hydrovoltaic-photoelectric effect driven self-powered electrochemical aptasensor with engineered built-in electric field for on-site microcystin-RR detection in aquatic products.

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Title: Hydrovoltaic-photoelectric effect driven self-powered electrochemical aptasensor with engineered built-in electric field for on-site microcystin-RR detection in aquatic products.
Authors: Chen, Yan1 (AUTHOR), Jiang, Ding1 (AUTHOR) jiangding@cczu.edu.cn, Du, Xiaojiao2 (AUTHOR), Wang, Xue3 (AUTHOR), Shan, Xueling1 (AUTHOR), Wang, Wenchang1 (AUTHOR), Chen, Zhidong1 (AUTHOR) zdchen@cczu.edu.cn
Source: Microchimica Acta. May2026, Vol. 193 Issue 5, p1-14. 14p.
Subjects: Photoelectric effect, Biosensors, Cyanobacterial toxins, Energy harvesting, Fishery products, Toxin analysis, Photovoltaic effect
Abstract: The bioaccumulation of hepatotoxic Microcystin-RR (MC-RR) in aquatic products poses a severe threat to human health via the food chain, underscoring the urgent need for sensitive detection methods. Herein, a self-powered electrochemical aptasensor was developed for on-site MC-RR monitoring based on ZIF-67/g-C3N4 heterojunctions. By coupling hydrovoltaic and photoelectric effects, the engineered built-in electric field significantly enhanced charge separation and water evaporation, amplifying the electrical signal by 11-fold under illumination. The aptamer-functionalized platform enabled specific MC-RR detection via modulating the interfacial charge transfer, achieving a wide linear range from 1 × 10− 14 M to 1 × 10− 10 M and an ultra-low detection limit of 2.36 × 10− 15 M. Furthermore, the sensor demonstrated excellent selectivity against interfering substances and was successfully applied to the analysis of aquaculture water and crucian carp samples. This work presents a sustainable, high-performance self-powered sensing platform for early cyanotoxin screening to safeguard aquatic food safety. Its advantages of simple operation and high sensitivity make it a promising tool for on-site food safety monitoring. [ABSTRACT FROM AUTHOR]
Copyright of Microchimica Acta is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 193807532
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  Data: Hydrovoltaic-photoelectric effect driven self-powered electrochemical aptasensor with engineered built-in electric field for on-site microcystin-RR detection in aquatic products.
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  Data: <searchLink fieldCode="AR" term="%22Chen%2C+Yan%22">Chen, Yan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jiang%2C+Ding%22">Jiang, Ding</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> jiangding@cczu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Du%2C+Xiaojiao%22">Du, Xiaojiao</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Xue%22">Wang, Xue</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shan%2C+Xueling%22">Shan, Xueling</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Wenchang%22">Wang, Wenchang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Zhidong%22">Chen, Zhidong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zdchen@cczu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Microchimica+Acta%22">Microchimica Acta</searchLink>. May2026, Vol. 193 Issue 5, p1-14. 14p.
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  Data: The bioaccumulation of hepatotoxic Microcystin-RR (MC-RR) in aquatic products poses a severe threat to human health via the food chain, underscoring the urgent need for sensitive detection methods. Herein, a self-powered electrochemical aptasensor was developed for on-site MC-RR monitoring based on ZIF-67/g-C3N4 heterojunctions. By coupling hydrovoltaic and photoelectric effects, the engineered built-in electric field significantly enhanced charge separation and water evaporation, amplifying the electrical signal by 11-fold under illumination. The aptamer-functionalized platform enabled specific MC-RR detection via modulating the interfacial charge transfer, achieving a wide linear range from 1 × 10− 14 M to 1 × 10− 10 M and an ultra-low detection limit of 2.36 × 10− 15 M. Furthermore, the sensor demonstrated excellent selectivity against interfering substances and was successfully applied to the analysis of aquaculture water and crucian carp samples. This work presents a sustainable, high-performance self-powered sensing platform for early cyanotoxin screening to safeguard aquatic food safety. Its advantages of simple operation and high sensitivity make it a promising tool for on-site food safety monitoring. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Microchimica Acta is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s00604-026-08091-7
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      – SubjectFull: Cyanobacterial toxins
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      – SubjectFull: Energy harvesting
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      – SubjectFull: Fishery products
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              Text: May2026
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              Y: 2026
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