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A Rapid and Specific Microplate Assay for the Determination of Intra- and Extracellular Ascorbate in Cultured Cells

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Published on: April 11, 2014

Self-Powered Photoelectrochemistry Biosensor for Ascorbic Acid Determination in Beverage Samples Based on Perylene

Wei Zhang¹, Xinyang Sun¹, Hong Liu²

¹School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China.

Molecules (Basel, Switzerland)

|November 27, 2024

Summary

A new photoelectrochemical (PEC) biosensor using 3,4,9,10-perylenetetracarboxylic dianhydride (PDA) rods offers sensitive detection of ascorbic acid. This self-powered device demonstrates practical application in beverage analysis.

Keywords:

630 nm illumination light ascorbic acid detection perylene derivative self assembly self-powered photoelectrochemistry biosensor

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Area of Science:

Electrochemistry
Materials Science
Biochemistry

Background:

Ascorbic acid is vital for human metabolism but must be obtained from diet.
Dietary ascorbic acid content is unstable due to degradation during storage and heating.
Sensitive and accurate detection methods for ascorbic acid are crucial, particularly in food analysis.

Purpose of the Study:

To develop a novel photoelectrochemical (PEC) biosensor for sensitive ascorbic acid detection.
To address limitations in existing PEC materials regarding illumination wavelength and bias voltage.
To create a self-powered PEC biosensor with enhanced performance characteristics.

Main Methods:

Synthesis and characterization of 3,4,9,10-perylenetetracarboxylic dianhydride (PDA) self-assembly rods.
Fabrication of a PEC biosensor utilizing the PDA material.
Evaluation of the biosensor's performance under 630 nm illumination and 0 V bias.
Testing the biosensor's applicability in real beverage samples.

Main Results:

The PDA self-assembly rod material demonstrated significant photocurrent response to ascorbic acid.
The self-powered PEC biosensor exhibited a linear detection range from 5 μM·L⁻¹ to 400 μM·L⁻¹.
A low limit of detection of 4.1 μM·L⁻¹ was achieved.
The biosensor showed good practicality for detecting ascorbic acid in beverages.

Conclusions:

3,4,9,10-perylenetetracarboxylic dianhydride (PDA) self-assembly rods are effective PEC materials for ascorbic acid detection.
The developed self-powered PEC biosensor offers a sensitive, accurate, and practical method for ascorbic acid quantification.
This approach provides a wider linear range compared to other existing ascorbic acid biosensors.