Layered Flow Cell for Simultaneous Microarray Synthesis
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Solution Overview
Problem
The high cost of microarray synthesis limits the practical applications of microarray technology, as current methods are expensive and inefficient for producing multiple microarrays simultaneously.
Innovation Solution
A method and flow cell design that allow for the simultaneous synthesis of multiple microarrays using a layered arrangement of transparent and solid carrier surfaces, where light is projected in a preselected pattern to activate photosensitive moieties on both surfaces, enabling the binding of polymer units through a fluid channel between the layers, thereby reducing costs and synthesis time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional single microarray synthesis methods are used, then synthesis quality is maintained, but cost and time increase due to sequential production of multiple microarrays
Solution Approach 1:
The patent combines multiple synthesis surfaces (first and second carrier surfaces) into a single flow cell assembly, allowing simultaneous synthesis of multiple microarrays. The fluid delivery system merges reagent flow paths to contact both surfaces concurrently, while the light delivery system activates photosensitive moieties on both surfaces simultaneously, thereby increasing throughput without proportionally increasing time or resource consumption
Solution Approach 2:
The patent transitions from single-surface synthesis to multi-surface synthesis by stacking carrier surfaces vertically within the flow cell. This spatial arrangement in the vertical dimension allows multiple microarrays to be synthesized in parallel within the same footprint, effectively multiplying productivity without requiring additional horizontal space or sequential operations
2Ease of manufacture
If multiple microarrays are synthesized sequentially using traditional methods, then equipment simplicity is maintained, but cost efficiency deteriorates due to repeated use of reagents and equipment cycles
Solution Approach 1:
The flow cell assembly is designed as a universal platform that can simultaneously perform synthesis on multiple carrier surfaces using a single reagent delivery system and light delivery system. The fluid delivery apparatus and light delivery apparatus are configured to service both the first and second carrier surfaces concurrently, making the equipment multi-functional and thereby improving cost efficiency without significantly increasing complexity
Solution Approach 2:
The patent segments the synthesis system into modular components: a flow cell assembly containing multiple carrier surfaces, a fluid delivery system with multiple inlets/outlets, and a light delivery system. This segmentation allows the system to handle multiple microarrays simultaneously while maintaining the simplicity of individual components, as each module performs its function independently but coordinates with others to achieve parallel synthesis
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
This approach significantly reduces the cost and time required for synthesizing multiple microarrays by sharing equipment and reagents, while maintaining high synthesis quality, and allows for the production of mirror-image microarrays that can be used for comparative assays with minimal variance.
Implementation Method 1
projecting light in a preselected pattern onto the first carrier surface, whereby photons react with the photosensitive moieties thereby activating the first surface, wherein the light substantially passes through the transparent first solid carrier and further projects onto the second carrier surface, whereby photons react with the photosensitive moieties thereby activating the second surface
Data Source
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AI summary
The invention provides a method of step-wise synthesizing copies of polymers of potentially different units on at least two solid carrier surfaces simultaneously in a preselected pattern, comprising providing a layered synthesis arrangement comprising a transparent first solid carrier and a second solid carrier, wherein said first and second carrier each contain an active surface to which polymer units can be applied dependent on reactions of photosensitive moieties, projecting light in a preselected pattern onto the first and second carrier surface, wherein the light passes through the transparent first solid carrier, whereby photons react with photosensitive moieties thereby activating the first surface, said pass-through light further projects onto the second carrier surface, whereby photons react with photosensitive moieties thereby activating the second surface, applying a fluid comprising a polymer unit to the first and second active surfaces and binding the polymer unit to the exposed sites of said pattern, repeating projecting and binding steps with optionally different patterns and/or polymer units, thereby synthesising polymers on said carrier surfaces; as well as means for performing said method.