Microarray Replication via Spatially Limited Effective Areas
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Solution Overview
Problem
Current methods for producing microarrays are complex and costly, requiring significant technical expenditure and time, especially as the number of different biomolecules increases or the size of deposition spots decreases, with no direct production chain between sequencing and microarray fabrication, limiting their use due to high costs and laborious synthetic production processes.
Innovation Solution
A method for producing a replicate or derivative of a microarray by creating spatially limited effective areas on a carrier with binding adapters, amplifying molecules, and binding them to the carrier to retain the spatial arrangement, allowing for the production of microarrays without prior knowledge of biochemical information, enabling copying of DNA, RNA, or protein arrays directly from a sequencing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional microarray production techniques (in-situ synthesis or deposition) are used, then microarrays can be produced, but technical expenditure and production time increase significantly as the number of biomolecules increases or spot size decreases
Solution Approach 1:
The patent applies copying by creating replica microarrays from master microarrays through hybridization and amplification processes. Instead of synthesizing each microarray from scratch, a master microarray serves as a template to generate multiple replicas, dramatically reducing technical expenditure and production time while maintaining manufacturing precision.
Solution Approach 2:
The patent employs preliminary action by creating a master microarray in advance that can serve as a template for multiple replicas. The master microarray is prepared once with all necessary biomolecules positioned, and then multiple copies are generated from this pre-prepared template, eliminating the need to repeat the complex synthesis process for each new microarray.
2Manufacturing precision
If conventional microarray production techniques are used, then microarrays can be produced, but production time becomes excessively long (weeks or months) for large numbers of biomolecules
Solution Approach 1:
The copying approach enables parallel production of multiple microarrays simultaneously. Instead of sequentially synthesizing each microarray (which would take weeks or months), the master microarray serves as a template for generating multiple replicas in parallel through hybridization and amplification, reducing production time from months to days or hours.
Solution Approach 2:
The patent maintains continuity of useful action by implementing an ongoing amplification process where DNA polymerase continuously synthesizes new DNA strands during the replication process. The amplification reactions proceed continuously through multiple cycles, efficiently generating large numbers of copies without interruption, thereby dramatically reducing total production time.
3Reliability
If microarrays are produced through laborious synthetic processes, then microarrays with known sequences can be created, but the process is costly and time-consuming
Solution Approach 1:
The copying method maintains reliability by using the master microarray with known sequences as a template. The amplification process faithfully replicates the original sequences through DNA polymerase, ensuring sequence accuracy is preserved in the replicas. This eliminates the need for repeated laborious synthesis while maintaining sequence fidelity.
Solution Approach 2:
The patent uses an intermediary approach by introducing amplification intermediates (DNA primers and polymerase) that mediate the replication process. These intermediaries enable accurate copying of sequences from the master microarray to the replicas without requiring direct re-synthesis, thereby maintaining sequence accuracy while simplifying the manufacturing process.
4Adaptability or versatility
If direct synthesis methods are used for each microarray, then custom microarrays can be produced, but costs increase more than linearly with the number of biomolecules
Solution Approach 1:
The copying approach enables custom microarray design adaptability while reducing costs by generating multiple replicas from a single master microarray. Once a master microarray with custom biomolecule arrangements is created, numerous replicas can be produced at fraction of the cost of synthesizing each custom microarray individually, eliminating the more-than-linear cost increase.
Solution Approach 2:
The master microarray serves as a universal template that can generate multiple different replica microarrays for various applications. The same master microarray can be used to produce replicas for different experiments, studies, or applications, making the production system versatile and cost-effective for multiple purposes rather than requiring separate synthesis for each use.
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 fast, simple, and inexpensive production of microarrays that retain positional information, enabling direct conversion of DNA arrays to RNA or protein arrays during sequencing, circumventing the need for laborious synthetic generation and reducing costs, while maintaining genotype-phenotype coupling and enabling various biochemical reactions and analyses.
Implementation Method 1
amplifying the molecules by means of amplifying agents in the effective areas for creating replicates or derivatives of the samples
Implementation Method 2
binding the replicates or derivatives of the samples to the carrier by means of the binding adapter or the binding properties
Data Source
AI summary
A method of producing a replicate or derivative of an array of molecules, the array having a spatial arrangement of separate samples of molecules, includes creating, for each sample, at least one spatially limited effective area which is separate from the effective areas of the other samples, a surface, provided with a binding adapter or binding properties, of a carrier bordering on the effective areas. The molecules are amplified by means of amplifying agents in the effective areas for creating replicates or derivatives of the samples. The replicates or derivatives of the samples are bound to the carrier by means of the binding adapter or the binding properties, so that a spatial arrangement of the replicates or derivatives of the samples on the carrier corresponds to the spatial arrangement of the samples in the array. The carrier having the copies of the samples is removed from the array.