Rapid and Highly Selective Detection of the Tire Antioxidant 6PPD in Water Samples via Dual-Mode Fluorescent and Photoelectrochemical Sensing Based on Host–Guest Recognition
Abstract
= 2.11 μM). Leveraging this recognition, two βCD-based sensing platforms were developed: a fluorescence "turn-on" sensor (LOD = 4.13 nM) and a self-powered photoelectrochemical sensor with enhanced selectivity (LOD = 3.19 nM). Both sensors were successfully applied to the quantification of 6PPD in road runoff rainwater samples, yielding results in excellent agreement with those of HPLC-MS/MS analysis. This work establishes cyclodextrin host-guest chemistry as an effective recognition strategy for tire-derived contaminants and provides a practical foundation for the rapid, low-cost, and potentially field-deployable monitoring of 6PPD in environmental waters.
Fields of Study & Subjects
Sulfur Compounds in Biology
Molecular Sensors and Ion Detection
Electrochemical sensors and biosensors
Publication details
- Journal / source
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Volume
- 60
- Issue
- 20
- Pages
- 14318–14328
- Publication date
- 14 May 2026
- Language
- EN