Issue 17, 2021

A fluorescent sensor array-based electronic tongue for Chinese tea discrimination

Abstract

A fluorescent sensor array-based electronic tongue consisting of 6 soluble conjugated polymeric nanoparticles (SCPNs) embedded in waterborne polyurethane was developed for tea discrimination. 9 tea samples were discriminated by these tiny tongues on the basis of the unique fluorescence quenching effect caused by different tea components. The fluorescence quenching response results of 6 SCPNs to 9 tea samples are a synergistic work of varieties of mechanisms including the Förster resonance energy transfer. An 18-dimensional vector was obtained by recording the changes of RGB values of the sensor array, which was analyzed directly by linear discrimination analysis (LDA) to discriminate 9 tea samples along the axes of tea-manufacturing. The predicted results of this sensing system with 100% accuracy through a linear support vector machine (SVM) model suggested that the fluorescent sensor array-based electronic tongue will be a powerful tool to identify soluble analytes in the food industrial field with high accuracy and efficiency.

Graphical abstract: A fluorescent sensor array-based electronic tongue for Chinese tea discrimination

Supplementary files

Article information

Article type
Paper
Submitted
01 Feb 2021
Accepted
25 Mar 2021
First published
26 Mar 2021

J. Mater. Chem. C, 2021,9, 5676-5681

A fluorescent sensor array-based electronic tongue for Chinese tea discrimination

Y. Zhu, J. Wang, Y. Wu, Z. Shang, Y. Ding and A. Hu, J. Mater. Chem. C, 2021, 9, 5676 DOI: 10.1039/D1TC00491C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements