Triangular Well Microtitre Plates for High-Throughput Cell Imaging
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Solution Overview
Problem
Current cell culture technologies face challenges in creating a high-throughput, cost-effective, and scalable method for imaging 3D cell cultures that mimics the in vivo environment, while maintaining cell health and morphology, and are often limited by the use of non-transparent microtitre plates that obstruct imaging.
Innovation Solution
Development of microtitre plates with triangular or V-shaped wells having a flat, transparent base, allowing cells to settle at a vertex for uniform imaging, combined with magnetic levitation techniques using NanoShuttle particles for 3D culture manipulation and imaging through the transparent base.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If standard microtitre plates with circular wells are used, then cell culture is simple and cost-effective, but imaging is obstructed due to non-transparent materials and cells being at variable depths
Solution Approach 1:
The well cross-section is changed from circular to triangular or V-shaped, creating an asymmetric geometry with a flat base and vertex. This asymmetric design causes cells to settle at a specific location (the vertex) rather than distributing uniformly, enabling consistent imaging depth and quality while maintaining standard microtitre plate manufacturing processes
Solution Approach 2:
The invention adds a geometric dimension to the well design by introducing triangular/V-shaped cross-sections with flat bases, rather than relying solely on material transparency. This dimensional change in well geometry provides a new approach to achieving consistent imaging depth without compromising manufacturing simplicity
2Reliability
If cells are grown in 3D culture to mimic in vivo environment, then cell morphology and function are improved, but imaging throughput is reduced due to cells being at unknown and variable depths
Solution Approach 1:
The triangular well geometry is designed in advance to guide cells to settle at the vertex position during the culturing process. This preliminary geometric arrangement ensures that before imaging begins, all cells are already positioned at a known, consistent depth, eliminating the need for post-culture positioning adjustments and enabling high-throughput imaging
3Measurement precision
If transparent materials are used for the plate base to enable imaging, then imaging is possible, but cell culture durability and scalability are reduced
Solution Approach 1:
The plate design implements local quality by having the base portion be transparent for imaging while the rest of the plate structure can remain opaque. This localized transparency allows imaging capability to be introduced only where needed (through the flat base) without requiring the entire plate to be made from transparent materials, thus maintaining durability and scalability
4Productivity
If automated imaging systems are used to increase throughput, then productivity is improved, but cells must be at uniform depth and position for accurate imaging
Solution Approach 1:
The triangular well geometry enables self-service by allowing the well structure itself to automatically position cells at the vertex through gravitational settling during normal culturing operations. This self-positioning mechanism eliminates the need for external automated positioning systems or complex alignment procedures, providing uniform cell depth naturally to support automated high-throughput imaging
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient, high-throughput imaging of 3D cell cultures at a known depth, facilitating faster and more reliable imaging of multiple wells and plates with improved cell health and morphology preservation, while being compatible with automated equipment and robotic handling.
Implementation Method 1
3D culturing of cells in magnetic fields
Implementation Method 2
the 3D culture will remain at that vertex, settling to the bottom of the plate with gravity
Data Source
AI summary
Specialized culture plates for imaging cells in a quick, high throughput manner are provided. Ideally the wells of the culture plate have triangular, square, or V-shaped wells or cell sorting walls having a plurality of vertices, and more complicated variations thereof are also possible. The plates are tilted or rotated to collect the cells at the vertex or vertices of the wells, optionally vibrated to speed the collection, then the vibration and tilt or rotation removed for some period of time, whereon the cells are imaged through the flat transparent bottom of the plate.