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Detection of ONOO- Using a Portable Fluorescence Sensing Platform Based on Pyronitrile Near-infrared Probe and WeChat Applet |
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DOI: |
KeyWord:fluorescent probe near-infrared ONOO- detection WeChat app intelligent assessment |
Author | Institution |
WANG Xiao,WANG Xue-chuan,HAN Qing-xin |
1. College of Chemistry and Chemical Engineering,Shaanxi University of Science and Technology,Xi’an ,China; 2. Institute of Biomass and Functional Materials,Shaanxi University of Science and Technology,Xi’an ,China; 3. School of Light Industry Science and Engineering, Shaanxi University of Science and Technology,Xi’an ,China |
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Abstract: |
A portable fluorescence sensing platform based on pyronitrile(DCI) near-infrared probe 1a and WeChat applet was constructed for the detection of ONOO-.The near-infrared probe 1a was firstly designed and synthesized based on a DCI fluorescent derivative,which was used for specific detection of ONOO-.The probe itself possess orange fluorescence,and the probe’s phenylboronic acid pinacol ester structure sheds after stimulation with nitrite ONOO-,then the parent intramolecular charge transfer(ICT) effect is restored,resulting in enhanced fluorescence emission and a color change of the probe’s fluorescence from orange to red after activation. Meanwhile,probe 1a exhibited excellent selectivity and anti-interference ability,the ultra-low detection limit reached 97 nmol/L.In addition,a simple detection platform based on a WeChat mini program “Colorimetric acquisition” was established,relying on the correlation between luminous chrominance of probe and ONOO- fluorescence response to probe,which could be used to intelligently evaluate the detection effect of exogenous ONOO-.This detection platform has a potential to become a simple analysis tool for portable and intelligent detection of hazardous substances in the environment.In conclusion,the NIR dye-based probe 1a developed in this paper was applied to the detection of ONOO-,providing a new reference for the intelligent detection of hazardous substances. |
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