Biosensor-based real-time monitoring of paracetamol photocatalytic degradation

Chemosphere. 2015 Jul:131:124-9. doi: 10.1016/j.chemosphere.2015.03.019. Epub 2015 Mar 28.

Abstract

This paper presents for the first time the integration of a biosensor for the on-line, real-time monitoring of a photocatalytic degradation process. Paracetamol was used as a model molecule due to its wide use and occurrence in environmental waters. The biosensor was developed based on tyrosinase immobilization in a polyvinylalcohol photocrosslinkable polymer. It was inserted in a computer-controlled flow system installed besides a photocatalytic reactor including titanium dioxide (TiO2) as photocatalyst. It was shown that the biosensor was able to accurately monitor the paracetamol degradation with time. Compared with conventional HPLC analysis, the described device provides a real-time information on the reaction advancement, allowing a better control of the photodegradation process.

Keywords: Biosensor; Depollution monitoring; Paracetamol; Photocatalysis; Tyrosinase.

Publication types

  • Research Support, Non-U.S. Gov't
  • Validation Study

MeSH terms

  • Acetaminophen / analysis*
  • Biosensing Techniques
  • Chromatography, High Pressure Liquid
  • Electrodes
  • Environmental Monitoring / methods*
  • Monophenol Monooxygenase / chemistry*
  • Photolysis*
  • Waste Disposal, Fluid*
  • Water Pollutants, Chemical / analysis*

Substances

  • Water Pollutants, Chemical
  • Acetaminophen
  • Monophenol Monooxygenase