A Water‐Triggered Sensor for Self‐Powered Flood Alarming
Abstract Devastating natural disasters are prompting the need for effective early warning systems. The warning systems relying on cables or batteries are much expensive and not suitable for low‐lying areas or remote environments. This research proposes a water‐triggered sensor that has no energy con...
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| Format: | Article |
| Language: | English |
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Wiley
2025-08-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202503815 |
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| author | Mingqi Zhao Shanzhi Lyu Yingchao Ma Nan Zhang Yapei Wang |
| author_facet | Mingqi Zhao Shanzhi Lyu Yingchao Ma Nan Zhang Yapei Wang |
| author_sort | Mingqi Zhao |
| collection | DOAJ |
| description | Abstract Devastating natural disasters are prompting the need for effective early warning systems. The warning systems relying on cables or batteries are much expensive and not suitable for low‐lying areas or remote environments. This research proposes a water‐triggered sensor that has no energy consumption in dry conditions while becoming activated in the presence of water. The sensor is self‐powered by a switchable galvanic battery which is made of two metallic electrodes isolated by an ion‐loaded xerogel. When the battery is subjected to a water environment, the rapid hydration of the xerogel arouses the redox reaction between two electrodes, subsequently outputting the electrical power to trigger the sensing system associated with timely signal generation and transmission. To ensure adequate stability and durability against the ambient humidity variation, the battery is sealed with a polymer coat which is inert to the moisture but permeable to water. Since the sensor can be built on a paper base, it is suitable for Miura origami which is beneficial for improving the output power and minimizing the sensor size. Outdoor experiments confirm that the sensor is able to rapidly discriminate floods and warn nearby people and remote‐control centers. |
| format | Article |
| id | doaj-art-b63c2272b3c240f5b02bcf8b80f20b41 |
| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-b63c2272b3c240f5b02bcf8b80f20b412025-08-20T11:56:10ZengWileyAdvanced Science2198-38442025-08-011230n/an/a10.1002/advs.202503815A Water‐Triggered Sensor for Self‐Powered Flood AlarmingMingqi Zhao0Shanzhi Lyu1Yingchao Ma2Nan Zhang3Yapei Wang4School of Chemistry and Life Resources Renmin University of China Beijing 100872 ChinaSchool of Chemistry and Life Resources Renmin University of China Beijing 100872 ChinaSchool of Chemistry and Life Resources Renmin University of China Beijing 100872 ChinaSchool of Chemistry and Life Resources Renmin University of China Beijing 100872 ChinaSchool of Chemistry and Life Resources Renmin University of China Beijing 100872 ChinaAbstract Devastating natural disasters are prompting the need for effective early warning systems. The warning systems relying on cables or batteries are much expensive and not suitable for low‐lying areas or remote environments. This research proposes a water‐triggered sensor that has no energy consumption in dry conditions while becoming activated in the presence of water. The sensor is self‐powered by a switchable galvanic battery which is made of two metallic electrodes isolated by an ion‐loaded xerogel. When the battery is subjected to a water environment, the rapid hydration of the xerogel arouses the redox reaction between two electrodes, subsequently outputting the electrical power to trigger the sensing system associated with timely signal generation and transmission. To ensure adequate stability and durability against the ambient humidity variation, the battery is sealed with a polymer coat which is inert to the moisture but permeable to water. Since the sensor can be built on a paper base, it is suitable for Miura origami which is beneficial for improving the output power and minimizing the sensor size. Outdoor experiments confirm that the sensor is able to rapidly discriminate floods and warn nearby people and remote‐control centers.https://doi.org/10.1002/advs.202503815flood alarming systemhydrogelself‐powered sensor |
| spellingShingle | Mingqi Zhao Shanzhi Lyu Yingchao Ma Nan Zhang Yapei Wang A Water‐Triggered Sensor for Self‐Powered Flood Alarming Advanced Science flood alarming system hydrogel self‐powered sensor |
| title | A Water‐Triggered Sensor for Self‐Powered Flood Alarming |
| title_full | A Water‐Triggered Sensor for Self‐Powered Flood Alarming |
| title_fullStr | A Water‐Triggered Sensor for Self‐Powered Flood Alarming |
| title_full_unstemmed | A Water‐Triggered Sensor for Self‐Powered Flood Alarming |
| title_short | A Water‐Triggered Sensor for Self‐Powered Flood Alarming |
| title_sort | water triggered sensor for self powered flood alarming |
| topic | flood alarming system hydrogel self‐powered sensor |
| url | https://doi.org/10.1002/advs.202503815 |
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