Uniform electric field generation in circular multi-well culture plates using polymeric inserts

Area of Science:

• Biomedical Engineering
• Cell Biology
• Microfluidics

Background:

• Uniform electric fields (EF) are crucial for in vitro cell studies.
• Achieving uniform EF in circular microchannels is challenging due to geometric complexities and varying electrical resistance.

Purpose of the Study:

• To design and validate a 3D computer-aided design (CAD) polymeric insert for generating uniform EF in circular cell culture plates.
• To overcome the limitations of applying EF in circular geometries for cell culture.

Main Methods:

• Development of a 3D CAD polymeric insert for circular multi-well plates.
• Validation of the insert's performance using NIH/3T3 mouse embryonic fibroblast cells in a 6-well plate.
• Measurement of EF uniformity using coefficient of variation (CV).

Main Results:

• A uniform EF with a CV of 1.2% was achieved in a 6-well plate.
• The insert provided an effective stimulation area of 69.5%.
• The CAD-based inserts demonstrated scalability for larger culture dishes (e.g., 100 mm).

Conclusions:

• The 3D-designed insert effectively generates uniform EF in circular culture plates, overcoming previous limitations.
• This technology is scalable and adaptable for commercial cultureware, supporting diverse EF-related research.
• Potential applications include cell-EF interactions and tissue regeneration studies.