A three-dimensional printed cell for rapid, low-volume spectroelectrochemistry.

Area of Science:

• Analytical Chemistry
• Electrochemistry
• Spectroscopy
• 3D Printing Technology

Background:

• Traditional spectroelectrochemical methods can be time-consuming.
• Standard laboratory equipment may not be optimized for rapid electrochemical analysis.
• Integrating electrochemical control with spectroscopic measurement often requires specialized cells.

Purpose of the Study:

• To develop an inexpensive and versatile spectroelectrochemical cell insert using 3D printing.
• To enable rapid potentiometric titrations and complete electrolysis of protein samples.
• To combine the advantages of thin-layer cells and standard potentiometry in a single device.

Main Methods:

• Utilized three-dimensional (3D) printing to fabricate a custom cell insert.
• Designed the insert to fit within a standard cuvette for use with transmission spectrometers.
• Incorporated precise positioning for working, counter, and reference electrodes.
• Achieved an interior volume of approximately 200 μl with a 1-cm path length.

Main Results:

• The 3D-printed cell insert is inexpensive to produce.
• The device facilitates rapid potentiometric titrations, significantly reducing analysis time.
• Complete electrolysis of protein samples is achieved within minutes.
• The cell insert is compatible with any transmission spectrometer.

Conclusions:

• 3D printing offers a cost-effective solution for creating specialized analytical devices.
• The developed spectroelectrochemical cell insert enhances efficiency in molecular analysis and electrochemical studies.
• This technology provides a valuable tool for researchers needing rapid electrochemical and spectroscopic measurements.