Multi-well Plate with Electrospun Nanofibre Scaffold
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Solution Overview
Problem
Current multi-well assay plates used in cell-based assays primarily support two-dimensional cell cultures, which lead to a high number of false positive results in drug screening due to the inhibition of extracellular matrix production and signaling between cells, resulting in inaccurate representations of in vivo conditions.
Innovation Solution
A multi-well assay plate with a scaffold layer of electrospun polymer nanofibres that supports three-dimensional cell cultures, providing a porous network for consistent and reproducible growth, mimicking in vivo conditions and reducing false positives by stimulating specific signaling pathways and ECM production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two-dimensional cell cultures are used in standard multi-well plates, then the plates are simple to manufacture and compatible with existing equipment, but the results produce a high number of false positives and do not accurately represent in vivo conditions
Solution Approach 1:
The patent incorporates a porous scaffold layer within the multi-well plate structure that enables three-dimensional cell culture while maintaining compatibility with standard plate formats. The porous material allows cells to grow in a 3D configuration that better mimics in vivo conditions, thereby improving the reliability of drug screening results without completely redesigning the plate architecture
Solution Approach 2:
The multi-well plate is constructed as a composite structure combining standard plate materials with an integrated porous scaffold layer. This composite approach allows the plate to maintain its standard external dimensions and compatibility with existing equipment while providing the enhanced 3D culture environment needed for more accurate biological responses and reduced false positives
2Reliability
If three-dimensional cell cultures are implemented, then false positives are reduced and in vivo conditions are better mimicked, but the plate structure becomes more complex
Solution Approach 1:
The patent merges the scaffold layer with the multi-well plate structure itself, creating an integrated component rather than a separate assembly. This combining of functions allows the plate to provide both standard well containment and 3D culture support in a single manufactured unit, simplifying the overall manufacturing process despite the enhanced functionality
Solution Approach 2:
The use of porous materials enables the scaffold to be formed as an integral part of the plate structure during manufacturing. The porous network can be created through established manufacturing techniques that are compatible with mass production, allowing 3D culture capabilities to be incorporated without significantly complicating the manufacturing process
3Reliability
If scaffold layer is added to support 3D cell cultures, then cell signaling and ECM production are stimulated, but the manufacturing process becomes more complex
Solution Approach 1:
The porous scaffold layer is designed with specific pore sizes and structural characteristics that naturally promote cell signaling pathways and extracellular matrix production. The porous structure itself provides the mechanical and biochemical cues needed for accurate 3D cell culture behavior, eliminating the need for additional complex features to stimulate biological responses
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
The plate enables more accurate in vitro drug discovery by reducing false positives in high throughput and high content screening, and is compatible with existing automation and imaging equipment, allowing for standard assays to be performed on 3D cultures.
Implementation Method 1
a scaffold layer disposed on the plate base, which scaffold layer provides a porous three-dimensional network of electrospun polymer nanofibres in each of said sample wells
Implementation Method 2
a plate frame, which defines the side walls of said sample wells; wherein the plate frame is opaque and is welded to the plate base through the scaffold layer
Data Source
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AI summary
The invention provides a multi-well assay plate, comprising: a plate base, which defines the bottom of a plurality of sample wells; a scaffold layer disposed on the plate base, which scaffold layer provides a porous three-dimensional network of polymer nanofibres in each of said sample wells; and a plate frame, which defines the side walls of said sample wells; wherein the plate frame is bonded to the plate base through the scaffold layer. The invention further provides a process for producing the multi-well assay plate. Further provided is a scaffold which comprises a porous three dimensional network of electrospun polymer nanofibres, wherein the mean diameter of the polymer nanofibres is from 500 nm to 10 muiotaeta. A process for producing the scaffold is also provided, as are various uses of the multi-well plate and the scaffold in drug screening, regenerative medicine and tissue engineering.