Volume 5, Issue 6 e629
RESEARCH ARTICLE
Open Access

Dynamic response and discrimination of gaseous sarin using a boron-difluoride complex film-based fluorescence sensor

Zhijie Zhou

Zhijie Zhou

Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi, P. R. China

Search for more papers by this author
Lei Zhang

Lei Zhang

School of Optoelectronic Engineering, Xidian University, Xi'an, Shaanxi, P. R. China

Search for more papers by this author
Lingya Peng

Lingya Peng

Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi, P. R. China

Search for more papers by this author
Yingjie Li

Yingjie Li

Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi, P. R. China

Search for more papers by this author
Xiaolin Zhu

Corresponding Author

Xiaolin Zhu

Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi, P. R. China

Correspondence

Xiaolin Zhu and Haonan Peng, Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, P. R. China.

Email: [email protected] and [email protected]

Gang He, Frontier Institute of Science and Technology, State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an 712046, Shaanxi, P. R. China.

Email: [email protected]

Molin Qin, State Key Laboratory of NBC Protection for Civilian, Beijing 100191, P. R. China.

Email: [email protected]

Search for more papers by this author
Yidi Wu

Yidi Wu

Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi, P. R. China

Search for more papers by this author
Zebiao Qiu

Zebiao Qiu

Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi, P. R. China

Search for more papers by this author
Gang He

Corresponding Author

Gang He

Frontier Institute of Science and Technology, State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an, Shaanxi, P. R. China

Correspondence

Xiaolin Zhu and Haonan Peng, Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, P. R. China.

Email: [email protected] and [email protected]

Gang He, Frontier Institute of Science and Technology, State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an 712046, Shaanxi, P. R. China.

Email: [email protected]

Molin Qin, State Key Laboratory of NBC Protection for Civilian, Beijing 100191, P. R. China.

Email: [email protected]

Search for more papers by this author
Molin Qin

Corresponding Author

Molin Qin

State Key Laboratory of NBC Protection for Civilian, Beijing, P. R. China

Correspondence

Xiaolin Zhu and Haonan Peng, Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, P. R. China.

Email: [email protected] and [email protected]

Gang He, Frontier Institute of Science and Technology, State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an 712046, Shaanxi, P. R. China.

Email: [email protected]

Molin Qin, State Key Laboratory of NBC Protection for Civilian, Beijing 100191, P. R. China.

Email: [email protected]

Search for more papers by this author
Haonan Peng

Corresponding Author

Haonan Peng

Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi, P. R. China

Correspondence

Xiaolin Zhu and Haonan Peng, Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, Shaanxi, P. R. China.

Email: [email protected] and [email protected]

Gang He, Frontier Institute of Science and Technology, State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an 712046, Shaanxi, P. R. China.

Email: [email protected]

Molin Qin, State Key Laboratory of NBC Protection for Civilian, Beijing 100191, P. R. China.

Email: [email protected]

Search for more papers by this author
Yu Fang

Yu Fang

Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi, P. R. China

Search for more papers by this author
First published: 03 July 2024
Citations: 12

Zhijie Zhou and Lei Zhang contributed equally to this study.

Abstract

This study presents a novel boron-difluoride complex-based fluorescent nanofilm sensor capable of detecting sarin vapors in the environment by reporting an output fluorescence signal. The sensor's evaluation demonstrated an exceptionally low detection limit for sarin vapor, even in the presence of various interfering gases, with theoretical and practical limits of detection of 0.7 and 1 ppb, respectively. The sensor featured a rapid response time (less than 2 s), a broad linear detection range (1 ppb–1000 ppm), and superior selectivity for sarin vapor over a group of interfering analytes, outperforming existing sarin sensors. Mechanistic study indicates that the sensor's heightened sensitivity to sarin vapor is due to the robust affinity of nitrogen atoms within the core BODIQ unit for sarin. Additionally, the tetraphenylethylene structure with steric hindrance effectively inhibits the tight packing of BODIQ derivatives, and forms numerous microporous structures in the self-assembled nanofilm, which are beneficial for the mass transfer, enhancing the sensor efficiency in detecting vapors. Furthermore, we have achieved the differentiation of sarin, diethyl chlorophosphate, and HCl vapor through the analysis of sensing kinetic. This fluorescent sensor opens new avenues for sustainable, low-cost, and environment-friendly portable devices, as well as for environmental monitoring and tracking applications.

CONFLICT OF INTEREST STATEMENT

The authors declare no conflicts of interest.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.