A sensitive fluorescence-visualized sensor based on an InP/ZnS quantum dots-sodium rhodizonate system for monitoring fish freshness

Jiaran Zhang; Yizhong Wang; Zeyu Xu; Ce Shi; Xinting Yang

doi:10.1016/j.foodchem.2022.132521

A sensitive fluorescence-visualized sensor based on an InP/ZnS quantum dots-sodium rhodizonate system for monitoring fish freshness

Food Chem. 2022 Aug 1:384:132521. doi: 10.1016/j.foodchem.2022.132521. Epub 2022 Feb 25.

Authors

Jiaran Zhang¹, Yizhong Wang², Zeyu Xu³, Ce Shi⁴, Xinting Yang⁵

Affiliations

¹ Information Technology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; National Engineering Research Center for Information Technology in Agriculture, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China; National Engineering Laboratory for Agri-product Quality Traceability, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China; School of Electrical and Information Engineering, Beijing University of Civil Engineering and Architecture, No.15, Yongyuan Road, Daxing District, Beijing 100044, China.
² Department of Automation and Information, Tianjin University of Science and Technology, Tianjin 300222, China.
³ Information Technology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; National Engineering Research Center for Information Technology in Agriculture, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China; National Engineering Laboratory for Agri-product Quality Traceability, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China. Electronic address: xzy19950811@163.com.
⁴ Information Technology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; National Engineering Research Center for Information Technology in Agriculture, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China; National Engineering Laboratory for Agri-product Quality Traceability, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China. Electronic address: shice001@163.com.
⁵ Information Technology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; National Engineering Research Center for Information Technology in Agriculture, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China; National Engineering Laboratory for Agri-product Quality Traceability, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China.

PMID: 35245752
DOI: 10.1016/j.foodchem.2022.132521

Abstract

A fluorescence-visualized sensor based on 3-mercaptopropionic acid (MPA)-capped indium phosphide/ zinc sulfide quantum dots (InP/ZnS QDs) and sodium rhodizonate (SR) was designed to sensitively monitor fish freshness. MPA-InP/ZnS QDs, which exhibit orange-red fluorescence, were synthesized by a solvothermal method. In the MPA-InP/ZnS QDs-SR system, the fluorescence of MPA-InP/ZnS QDs was quenched by SR due to the combined function of the inner filter effect (IFE) and static quenching effect (SQE) at pH = 3. When ammonia was added, the fluorescence was recovered, and the color changed from colorless to bright orange-red under UV light (365 nm). The sensing performance for volatile amine gas was studied, and the sensor demonstrated good linearity between the fluorescence intensity, the total volatile basic nitrogen (TVB-N) and the total color change (ΔE) of bighead carp stored at room temperature (25 °C) and refrigerated temperature (4 °C). The proposed sensor has potential applications in monitoring fish freshness.

Keywords: Ammonia; Fluorescence sensor; Freshness; InP/ZnS QDs; Visualization.

MeSH terms

Animals
Cyclohexanones
Quantum Dots*
Sulfides
Zinc Compounds

Substances

Cyclohexanones
Sulfides
Zinc Compounds
rhodizonic acid
zinc sulfide