Nucleic Acid Data Storage Thermal Addressing
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Solution Overview
Problem
Current nucleic acid-based data storage methods face challenges in achieving high storage density due to limitations in addressing selected nucleic acid molecules, leading to increased space requirements and reduced scalability, as the number of unique primers is limited, necessitating physical separation of data sets into multiple wells, which increases the overall size of the storage library.
Innovation Solution
A thermal control device with independently controlled sites allows for temperature-based addressing of double-stranded nucleic acid molecules, enabling selective access without physical separation, using temperature control circuitry to differentiate target sites from others, thereby increasing storage density by allowing random access to a larger volume of information within a smaller space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If physical separation of data sets into multiple wells is used, then the number of addressable molecules increases, but the overall size of the storage library increases and storage density decreases
Solution Approach 1:
The system segments the addressing function into two independent components: spatial segmentation through the array of sites and molecular segmentation through unique primer sequences. This allows multiple data sets to be addressed within a single shared fluid well without requiring physical separation into multiple wells, thereby maintaining high storage density while increasing the number of addressable molecules.
Solution Approach 2:
The shared fluid well serves multiple functions simultaneously: it provides a common reaction environment for all sites in the array while allowing independent access to each site through temperature control. The primers serve both as address identifiers and as functional elements for selective amplification, eliminating the need for separate addressing and access mechanisms.
2Ease of operation
If unique primers are used for each data set, then selective access to specific data is enabled, but the limited number of unique primers restricts the size of the data set that can be maintained
Solution Approach 1:
The system adds a spatial dimension to the addressing scheme by combining the one-dimensional space of primer sequences with the two-dimensional array of sites. This allows the number of addressable data sets to scale with the product of the number of unique primers and the number of sites, rather than being limited solely by the number of primers. The address space becomes effectively two-dimensional: (primer_id, site_id).
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 enhances storage density by eliminating the need for physical barriers and mechanical structures, enabling a single shared fluid well to store a larger data set with fewer primers, as temperature-based addressing selectively targets specific sites, improving the practicality and efficiency of nucleic acid-based data storage.
Implementation Method 1
controlling temperatures of the plurality of sites using the temperature control circuitry, to provide a different temperature at a target site compared to other sites of the plurality of sites
Data Source
AI summary
Data storage is provided using double-stranded nucleic acid molecules provided on a thermal control device comprising a plurality of sites and temperature control circuitry to independently control a temperature of each of the plurality of sites. The temperature control circuitry, controls the site temperatures to provide a different temperature at a target site compared to other sites of the plurality of sites. The different temperatures at the target site and the other sites provide a greater probability of a read or write operation acting on the target site compared to the other sites. The temperature-based addressing helps to increase physical storage density.