Processive Enzyme DNA Sensors for Direct Electronic Data Readout
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Solution Overview
Problem
Current archival digital data storage systems face challenges in achieving high density, low cost, and long-lasting storage solutions, as they are slow and costly for data writing and recovery, and existing technologies do not effectively leverage the high information density and stability of DNA for digital data storage.
Innovation Solution
A processive enzyme molecular electronic sensor system that reads digital information encoded in DNA molecules directly, using a chip-based format with a trans-impedance amplifier and processive enzymes like polymerase, reverse transcriptase, helicase, or exonuclease to generate measurable electrical signals, enabling fast and efficient data extraction without the need for sample preparation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional archival storage systems (magnetic tape, optical disc) are used, then data storage capacity and longevity are achieved, but data writing and recovery processes are slow and costly
Solution Approach 1:
The patent replaces mechanical data reading systems (optical discs, magnetic tape) with a molecular-scale enzymatic system. Processive enzymes move along DNA molecules and read encoded information through biochemical reactions that generate electrical signals, eliminating the mechanical movement and processing delays inherent in conventional storage retrieval systems.
Solution Approach 2:
The patent introduces processive enzymes as intermediary molecules that bridge the DNA storage medium and the electronic detection system. These enzymes translate the static chemical information in DNA into dynamic electrical signals that can be rapidly processed and read, serving as a mediator between the stable but slow-to-access DNA and the fast electronic systems.
2Quantity of substance
If DNA is used for data storage, then extremely high information density and long-term stability are achieved, but complicated sample preparation and copying processes are required
Solution Approach 1:
The patent employs processive enzymes that can directly read information from native DNA molecules without requiring the DNA to be copied, amplified, or extensively prepared. The enzymatic system itself performs the reading function, allowing raw or minimally processed DNA to be interrogated directly, thus eliminating complex sample preparation steps while maintaining high information density.
3Duration of action of stationary object
If conventional storage systems are used, then data can be stored for long periods, but data recovery and writing processes are costly
Solution Approach 1:
The patent replaces costly mechanical and chemical data recovery processes with an enzymatic-electronic hybrid system. The processive enzymes perform the reading function through biochemical catalysis, generating electrical signals that can be amplified and processed electronically, significantly reducing the cost and complexity of data recovery compared to conventional methods.
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 system achieves high throughput, low cost, and fast data extraction, supporting Exabyte-scale storage with short turn-around times, outperforming conventional storage formats like magnetic tape and optical discs in speed, throughput, and cost, while maintaining data stability for thousands of years.
Implementation Method 1
a processive enzyme that moves along a DNA molecule and that generates distinguishable signals in a monitored electrical parameter of the circuit when the processive enzyme encounters a signaling feature
Data Source
AI summary
A processive enzyme molecular sensor for use in a DNA data storage system is disclosed that can extract digital information suitably encoded into a synthetic DNA molecule. In various aspects, such sensors are provided in a high-density chip-based format that can provide the high throughput, low-cost and fast data extraction capability required for large scale DNA data storage systems. The sensor for reading the digital data stored in DNA molecules processes individual encoded DNA molecules directly, eliminating the need for complicated sample preparation such as making copies of DNA or clonal populations of such molecules.