Bioinspired Color Changing Molecular Sensor toward Early Fire Detection Based on Transformation of Phthalonitrile to Phthalocyanine

The fire detection plays a critical role in the maintenance of public security. Previous approaches of early fire warning, based on smoke or temperature response must be set in the proximity of a fire. They cannot provide the additional information of fire location or size and are susceptible to com...

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Vydáno v:Advanced functional materials Ročník 29; číslo 8
Hlavní autoři: Fu, Teng, Zhao, Xi, Chen, Lin, Wu, Wan‐Shou, Zhao, Qing, Wang, Xiu‐Li, Guo, De‐Ming, Wang, Yu‐Zhong
Médium: Journal Article
Jazyk:angličtina
Vydáno: Hoboken Wiley Subscription Services, Inc 21.02.2019
Témata:
Alarm systems
Algorithms
Chemical synthesis
Chlorophyll
Color
color change
early fire detection
Fire detection
Image detection
image recognition algorithm
Materials science
Metabolism
molecular sensor
Object recognition
Organic chemistry
phthalocyanine
Smoke
Transformations
Warning
ISSN:1616-301X, 1616-3028
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Shrnutí:The fire detection plays a critical role in the maintenance of public security. Previous approaches of early fire warning, based on smoke or temperature response must be set in the proximity of a fire. They cannot provide the additional information of fire location or size and are susceptible to complicated situations. It is still a big challenge to make rapid and accurate early fire warning in precombustion because of the lack of reliable alarm signals. Herein, a precursor molecular sensor (PMS) is designed and synthesized that can present the chemical structure transformation to form phthalocyanines (Pcs) and release a color change signal at about 180 °C, learning from the plant chlorophyll metabolism. Further, the PMS is assembled to an early fire warning component (EWC) and an intelligent image recognition algorithm is introduced for unburned fire detection. The EWC generates a colorful alarm within 20 s at 275 °C. Therefore, the facile PMS provides a reliable real‐time monitoring strategy to the early fire warning detection in precombustion. A bioinspired color changing molecular sensor is designed to achieve early fire detection based on transformation of phthalonitrile to phthalocyanine, learning from the plant chlorophyll metabolism. An intelligent image recognition algorithm is applied and the sensor generates colorful alarm within 20 s at 275 °C. This study provides a reliable real‐time monitoring strategy to the early fire detection in precombustion.
Bibliografie:ObjectType-Article-1
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ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.201806586