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Fully automated station for testing, characterizing and modifying screen-printed electrodes.

Jan Zitka1,2, Jan Sileny1, Jiri Kudr1

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A new automated system enhances electrochemical detection using screen-printed electrodes (SPEs) for point-of-care testing (POCT). This innovation improves automation and repeatability, making SPEs more robust for real-world applications.

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Area of Science:

  • Analytical Chemistry
  • Electrochemistry
  • Point-of-Care Testing (POCT)

Background:

  • Electrochemical detection offers quantitative and sample-to-answer capabilities for point-of-care testing (POCT).
  • Optical detection is currently favored in mobile POCT due to the limited robustness of electrochemical methods in real-world scenarios.
  • Screen-printed electrodes (SPEs) are a low-cost, simple platform for electrochemical detection.

Purpose of the Study:

  • To introduce a novel benchtop system for processing electrochemical methods on SPE platforms.
  • To address limitations in SPE technology, including low automation and poor process repeatability.
  • To enhance the efficiency and industrial applicability of SPE-based electrochemical detection.

Main Methods:

  • Development of a novel benchtop system for automated processing of SPEs.
  • Implementation of features to prevent operator errors during SPE processing and testing.
  • Inclusion of two simultaneous working channels for comparative testing.
  • Design of specialized cartridges for SPE storage.

Main Results:

  • The system automates the processing of over 300 SPEs per day.
  • Operator errors during SPE handling and testing are significantly reduced.
  • Comparative testing is enabled through dual-channel functionality.
  • Improved process repeatability and automation for SPE-based electrochemical detection.

Conclusions:

  • The novel system overcomes major disadvantages of SPE technology, enhancing automation and repeatability.
  • This advancement makes electrochemical detection more robust and efficient for POCT applications.
  • The technology is poised for faster industrial growth and wider adoption in analytical applications.