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Tetranitrile-anthracene as Probe for Fluorescent Detection of Viscosity in Fluid Drinks via Aggregation-induced Emission

Abstract

Viscosity is an important quality parameter for fluid drinks, which can serve as an indicator for the extent of food spoilage, since the viscosity of fluid drinks usually increases during the spoilage process. In this study, a near-infrared fluorophore based on tetranitrile-anthracene (TPAEQ) was designed for viscosity determination via aggregation-induced emission (AIE). With increased viscosity, TPAEQ showed enhanced emission at around 759 nm with a large Stokes shift of 195 nm in water. The probe TPAEQ was successfully used to monitor the viscosity changes during the food spoilage process for fluid drinks. Moreover, the probe TPAEQ has effectively been utilized to determine the mass concentrations of food thickeners added in the real fruit drinks. The approach for the viscosity determination could enable the on-site direct detection with convenient operation in food safety inspection applications.

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Publication details

The article was received on 28 Oct 2019, accepted on 19 Nov 2019 and first published on 20 Nov 2019


Article type: Paper
DOI: 10.1039/C9AN02157D
Analyst, 2019, Accepted Manuscript

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    Tetranitrile-anthracene as Probe for Fluorescent Detection of Viscosity in Fluid Drinks via Aggregation-induced Emission

    L. Xu, L. Ni, F. Zeng and S. Wu, Analyst, 2019, Accepted Manuscript , DOI: 10.1039/C9AN02157D

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