L-DNA Encrypted Tracers for Supply Chain Integrity
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Solution Overview
Problem
Current tracking systems for highly regulated, valuable, or hazardous products, such as pharmaceuticals, lack effective methods to ensure authenticity and integrity throughout the supply chain, leading to issues with counterfeit products and the need for improved labeling and verification techniques.
Innovation Solution
The use of left-handed DNA (L-DNA) tracer molecules with randomized contiguous sequences as unique identifiers, embedded within products, which can be correlated with specific data and information, and detected using complementary L-DNA keys, enabling secure and reliable tracking and validation of product origin and integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional tracking systems are used for pharmaceutical products, then the tracking process is simple and easy to implement, but the system is vulnerable to counterfeiting and cannot ensure product authenticity and integrity
Solution Approach 1:
The patent changes the chemical parameter of the tracking molecule from natural right-handed DNA (D-DNA) to left-handed DNA (L-DNA). This parameter change creates a fundamentally new tracking system that is biologically inert, cannot be replicated by natural enzymes, and provides cryptographic security through its unnatural chirality, thereby resolving the contradiction between reliability and complexity
Solution Approach 2:
The patent creates a composite tracking system that combines L-DNA tracer molecules with specific capture sequences and randomized identifier sequences. This composite structure integrates multiple functions (tracking, authentication, data storage) into a single molecular system, improving reliability while managing complexity through functional integration
2Reliability
If L-DNA tracers with randomized sequences are used as unique identifiers, then the security and anti-counterfeiting capability is greatly improved, but the difficulty of detection and measurement increases
Solution Approach 1:
The patent introduces a detection key as an intermediary molecule that contains the complementary sequence to the L-DNA tracer. This intermediary enables specific detection of the randomized tracer sequence through hybridization, resolving the contradiction by providing a dedicated tool that simplifies detection without compromising the security of the randomized identifier
Solution Approach 2:
The patent replaces traditional mechanical or optical detection methods with molecular hybridization-based detection. The detection key binds specifically to the L-DNA tracer through complementary base pairing, creating a molecular recognition system that is highly specific and can detect the randomized sequences without requiring complex instrumentation
3Ease of manufacture
If 2D barcodes are printed on external packaging as required by DSCSA and FMD, then the tracking system is easy to implement and cost-effective, but the tracking information can be easily replicated and falsified
Solution Approach 1:
The patent embeds L-DNA tracer molecules directly within the pharmaceutical product formulation, nesting the tracking system inside the product itself rather than on external packaging. This nesting approach ensures the tracker cannot be separated or replicated independently, resolving the contradiction by maintaining ease of manufacture while dramatically improving integrity verification
Solution Approach 2:
The patent creates an uncopyable tracking system by using L-DNA's unnatural chirality. Since natural biological systems only produce D-DNA, L-DNA tracers cannot be replicated by natural enzymes or standard biotechnology processes, making them inherently uncopyable while maintaining ease of synthetic manufacture
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
L-DNA tracers provide secure, biologically inert, and information-dense markers that cannot be reverse engineered or falsified, allowing for the precise identification and validation of products, thereby preventing counterfeiting and ensuring the integrity of supply chains.
Implementation Method 1
contacting an L-DNA 'key' molecule with said product and determining hybridization of said L-DNA 'key' to a complementary L-DNA tracer in said product
Data Source
AI summary
The present disclosure is directed to the use of left-handed DNA (L-DNA) tracer to identify the source, track the distribution, and validate the integrity of products or resources that are highly regulated, valuable, or hazardous (e.g., pharmaceuticals, treated water, chemicals, designer products, and ammunitions). L-DNA tracers can encrypt unique identifying information, as well as more general information about the type of product, such as the manufacturing location, source, and date, directly into the nucleotide sequence. The L-DNA tracers can embed directly into the product so that it could neither be disassociated from the product nor be re-associated with another product. Because there are no technologies available to sequence L-DNA, the L-DNA tracers cannot be reverse engineered, copied, or falsified. The L-DNA tracers are only deciphered using a unique detection key. L-DNA tracers therefore can be used to preserve the integrity of product supply chains, allow counterfeit products to be detected, and identify the source of highly regulated products.