Non-destructive DNA Data Extraction via Magnetic Bead Mediators
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Solution Overview
Problem
Current electronic storage technologies face limitations in capacity, energy efficiency, and durability compared to DNA, which has the potential to store zettabytes in a small volume with minimal energy usage, but requires new technologies to address challenges of high-density DNA strands in extreme-scale storage systems.
Innovation Solution
A process involving oligonucleotide primers labeled with chemical moieties, magnetic beads, and controlled binding conditions to non-destructively extract and read information from DNA strands, including amplification, sequencing, and error analysis, while using physical occlusions and hierarchical primer binding to manage high-density storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If DNA-based storage is used to achieve extreme capacity, then storage capacity is improved, but device complexity increases
Solution Approach 1:
The patent introduces magnetic beads as intermediary carriers that bind to DNA strands through biotin-streptavidin interactions. These beads serve as mediators between the DNA storage medium and the extraction/sequencing equipment, simplifying the handling and processing of high-density DNA strands while maintaining extreme storage capacity
Solution Approach 2:
The patent replaces traditional mechanical separation methods with magnetic field-based separation using magnetic beads. This substitution enables non-destructive extraction of DNA strands from high-density storage pools without requiring physical manipulation or dilution, thereby managing the complexity of extreme-scale systems
2Quantity of substance
If high-density DNA strands are used in extreme-scale storage, then storage density is improved, but difficulty of detecting and measuring increases
Solution Approach 1:
The patent employs fluorescently labeled primers that bind to specific DNA sequences. The fluorescent labels emit detectable signals when excited, enabling the detection and measurement of specific DNA strands within high-density pools. This optical signaling approach overcomes the detection difficulties inherent in extreme-scale storage systems
Solution Approach 2:
The patent uses magnetic beads as intermediaries to concentrate and isolate specific DNA strands from high-density pools before sequencing. This pre-concentration step significantly reduces the complexity of detecting and measuring individual strands by bringing them into a more manageable state for analysis
3Loss of information
If non-destructive extraction is performed, then information integrity is improved, but loss of substance increases
Solution Approach 1:
The patent employs a process where magnetic beads bind to DNA strands for extraction, then the DNA is recovered from the beads after sequencing. The beads can be regenerated and reused for subsequent extractions, while the DNA strands are preserved intact for potential re-sequencing or re-storage, minimizing both information loss and substance loss
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, non-destructive extraction and reading of data from DNA strands, increasing storage capacity and reducing errors, thereby overcoming the limitations of current electronic storage technologies.
Implementation Method 1
providing an oligonucleotide primer that selectively binds a polynucleotide strand bearing the data file
Implementation Method 2
extracting the one or more polynucleotide strands bearing the data file using a magnet
Data Source
AI summary
Processes and systems for non-destructively storing, accessing, and editing information using nucleic acids are disclosed. Representative processes include a process for extracting a data file from a database, wherein the data file comprises information encoded into one or more polynucleotide strands and wherein the database comprises a plurality of polynucleotide strands; a process for expanding a number of unique data files in a database that can be addressed with a predetermined number of oligonucleotide primers, wherein the unique data files each comprise information encoded into one or more polynucleotide strands and wherein the database comprises a plurality of polynucleotide strands; a process for differentially reading information encoded into one or more polynucleotide strands; a process for manipulating files while in storage; and a process for extracting a data file from a database, wherein the data file comprises information encoded into a polynucleotide strand. Systems for carrying out the processes are also disclosed.