DNA Origami Polony Generation for Precise Monoclonal Cluster Formation
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Solution Overview
Problem
Existing methods for colony generation in next-generation sequencing technologies suffer from inherent randomness in the binding of library fragments onto beads or solid supports, leading to inefficiencies in monoclonal cluster formation.
Innovation Solution
The formation of monoclonal clusters of nucleic acid fragments is achieved through the use of nucleic acid supramolecular structures, such as DNA origami, coated with a thermostable hydrogel matrix, which capture specific oligonucleotides and enable precise organization on a substrate, facilitating local amplification and immobilization without compartmentalization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional bead or solid support methods are used for colony formation, then the process is simple to perform, but the binding of library fragments is random leading to low efficiency and poor yield
Solution Approach 1:
The patent changes the physical and chemical parameters of the support structure by using DNA origami with specific geometric configurations (e.g., 2D planar structures with defined edge lengths, 3D structures with controlled dimensions) and surface functionalization parameters (e.g., primer density, spacing). These parameter changes enable deterministic positioning of library fragments while maintaining ease of operation.
Solution Approach 2:
The patent segments the solid support into discrete, precisely positioned binding sites on DNA origami structures. Each origami unit acts as an independent compartment with defined geometry, creating multiple segmented locations for library fragment binding. This segmentation eliminates random binding while maintaining process simplicity.
2Manufacturing precision
If DNA origami supramolecular structures are used for monoclonal cluster generation, then precise organization and amplification efficiency are improved, but the device complexity increases
Solution Approach 1:
The DNA origami structures are designed to self-assemble from individual DNA strands into predetermined geometric configurations. This self-assembly process automatically creates the precise organizational structure needed for monoclonal cluster generation without requiring complex external assembly equipment or procedures. The system serves itself by using molecular self-organization to achieve the desired precision.
Solution Approach 2:
The patent uses DNA origami structures as templates that are replicated during the amplification process. Each origami structure serves as a master copy that guides the formation of multiple identical monoclonal clusters. This copying approach maintains precision while simplifying the overall process by relying on faithful replication rather than repeated manual positioning.
3Productivity
If solution phase amplification is used with supramolecular structures, then the yield of monoclonal clusters is improved, but the process time increases
Solution Approach 1:
The patent performs preliminary actions by pre-assembling the DNA origami structures with attached primers before the amplification process. Library fragments are also pre-captured on the origami structures in a controlled manner. These preliminary steps organize the system in advance, allowing the subsequent amplification to proceed efficiently in solution phase without requiring time-consuming intermediate manipulation steps.
Solution Approach 2:
The patent merges multiple functions into the DNA origami structure: it serves as the solid support, the organizational template, the primer carrier, and the amplification platform simultaneously. This merging eliminates the need for separate steps involving transfer between different supports or structures, thereby increasing yield while minimizing time loss through process integration.
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 allows for the generation of monoclonal clusters in a solution phase with precise organization and amplification, improving the efficiency and yield of colony formation in sequencing processes.
Implementation Method 1
capture specific oligonucleotides and enable precise organization on a substrate
Implementation Method 2
enzymatically amplifying the captured oligonucleotides
Data Source
AI summary
Provided herein are structures and methods for generating monoclonal clusters of a target oligonucleotide in a solution using a first nucleic acid supramolecular structure. In some cases, the target oligonucleotide is released from a second nucleic acid supramolecular structure. In some cases. the first and second nucleic acid supramolecular structure independently comprise DNA origami. In certain cases, the nucleic acid supramolecular structures may be coated in a hydrogel matrix. In other cases, the hydrogel matrix may be omitted. The monoclonal clusters created in solution using the disclosed structures and techniques may be immobilized on a substrate to facilitate subsequent processes performed on the monoclonal clusters.