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Related Experiment Videos

Screen-printed multienzyme arrays for use in amperometric batch and flow systems.

S Sapelnikova1, E Dock, R Solná

  • 1Department of Analytical Chemistry, Lund University, P.O. Box 124, 22 100 Lund, Sweden. Svetlana.Sapelnikova@analykem.lu.se

Analytical and Bioanalytical Chemistry
|July 12, 2003
PubMed
Summary

This study developed a novel biosensor array using screen-printing for wastewater analysis. The array combines multiple enzyme electrodes for enhanced characterization of environmental samples.

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Area of Science:

  • Electrochemistry
  • Biosensor Technology
  • Environmental Science

Background:

  • Screen-printing facilitates the fabrication of multi-electrode amperometric devices.
  • Biosensor arrays offer potential for complex sample analysis, such as wastewater characterization.
  • Enzyme immobilization on electrodes is a key strategy for biosensor development.

Purpose of the Study:

  • To develop a biosensor array for wastewater characterization by combining tyrosinase, horseradish peroxidase (HRP), and cholinesterase enzyme electrodes.
  • To investigate the behavior of the tyrosinase-modified electrode in the presence of necessary co-substrates.
  • To evaluate the performance of the developed bi-enzyme biosensor arrays.

Main Methods:

  • Fabrication of enzyme-modified electrodes using screen-printing technology.

Related Experiment Videos

  • Construction of a multi-enzyme electrode array.
  • Electrochemical characterization of individual enzyme electrodes and the array.
  • Testing the biosensor array in both batch and flow-injection systems.

    • Main Results:

    • Successful fabrication of a biosensor array integrating tyrosinase, HRP, and cholinesterase electrodes.
    • Demonstration of the tyrosinase electrode's behavior with specific co-substrates.
    • Evaluation of the bi-enzyme biosensor array's performance in different operational modes.

    Conclusions:

    • Screen-printed multi-enzyme biosensor arrays are feasible for wastewater characterization.
    • The developed array shows potential for simultaneous or sequential detection of analytes in wastewater.
    • Further optimization could lead to robust environmental monitoring tools.