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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Published in:	Advanced functional materials Vol. 29; no. 8
Main Authors:	Fu, Teng, Zhao, Xi, Chen, Lin, Wu, Wan‐Shou, Zhao, Qing, Wang, Xiu‐Li, Guo, De‐Ming, Wang, Yu‐Zhong
Format:	Journal Article
Language:	English
Published:	Hoboken Wiley Subscription Services, Inc 21.02.2019
Subjects:	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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Abstract	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.
AbstractList	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. 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.
Author	Zhao, Qing Fu, Teng Chen, Lin Zhao, Xi Wang, Xiu‐Li Wu, Wan‐Shou Guo, De‐Ming Wang, Yu‐Zhong
Author_xml	– sequence: 1 givenname: Teng orcidid: 0000-0002-2250-2453 surname: Fu fullname: Fu, Teng organization: Sichuan University – sequence: 2 givenname: Xi surname: Zhao fullname: Zhao, Xi organization: Sichuan University – sequence: 3 givenname: Lin surname: Chen fullname: Chen, Lin organization: Sichuan University – sequence: 4 givenname: Wan‐Shou surname: Wu fullname: Wu, Wan‐Shou organization: Sichuan University – sequence: 5 givenname: Qing surname: Zhao fullname: Zhao, Qing organization: Sichuan University – sequence: 6 givenname: Xiu‐Li orcidid: 0000-0002-2732-9477 surname: Wang fullname: Wang, Xiu‐Li email: xiuliwang1@163.com organization: Sichuan University – sequence: 7 givenname: De‐Ming surname: Guo fullname: Guo, De‐Ming organization: Sichuan University – sequence: 8 givenname: Yu‐Zhong orcidid: 0000-0003-3557-5085 surname: Wang fullname: Wang, Yu‐Zhong email: yzwang@scu.edu.cn organization: Sichuan University
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Snippet	The fire detection plays a critical role in the maintenance of public security. Previous approaches of early fire warning, based on smoke or temperature...
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SubjectTerms	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
Title	Bioinspired Color Changing Molecular Sensor toward Early Fire Detection Based on Transformation of Phthalonitrile to Phthalocyanine
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