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

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.