A pillar[5]arene-based fluorescence sensor for nitroaromatic compound detection
The design of smart strategies for monitoring environmental pollution and disease biomarkers has attracted tremendous research attention.Herein,we report a fluorescence method based on energy transfer to detect nitroaromatic compounds(NACs).The fluorescent supramolecular polymers(P5NPs)are built from 1,8-naphthalimide-functionalized pillar[5]arenes(P5Ns)through supramolecular self-as-sembly.Upon the addition of NACs,the intrinsic fluorescence intensity of the P5NPs solution decreases or even quenches quickly,which can be ascribed to the energy transfer from P5NPs to—NO2 groups.In addition,the P5NPs show exceptional sensitivity and universality toward detecting various NACs.This work will open new perspectives to develop new multifunctional fluorescent supramolecular polymers for sensing and detection applications.
supramolecular polymerself-assemblypillar[n]arenefluorescent materialsensing and de-tection
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