Methods and Systems for the Generation of Plurality of Security Markers and the Detection Therof
First Claim
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1. A method of producing a plurality of security markers, the method comprising:
- providing a single DNA template;
providing a pool of rtDNA oligonucleotides complementary to the template;
grouping primers in said pool of rtDNA oligonucleotides into a plurality of smaller subsets using combinatorial variation techniques; and
generating a plurality of security markers from said plurality of smaller subsets of rtDNA oligonucleotides in the pool of rtDNA oligonucleotides, each of the smaller subsets defining a distinct security marker.
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Abstract
This invention pertains to methods for generating large quantities of DNA security markers by combinatorial variation techniques using polymorphic fragment length DNA for unique identification security marker applications such as explosive ink used in dye/smoke pack and cash carrying boxes.
69 Citations
27 Claims
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1. A method of producing a plurality of security markers, the method comprising:
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providing a single DNA template; providing a pool of rtDNA oligonucleotides complementary to the template; grouping primers in said pool of rtDNA oligonucleotides into a plurality of smaller subsets using combinatorial variation techniques; and generating a plurality of security markers from said plurality of smaller subsets of rtDNA oligonucleotides in the pool of rtDNA oligonucleotides, each of the smaller subsets defining a distinct security marker. - View Dependent Claims (2, 3, 4, 5, 26)
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6. A method of generating security markers comprising:
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providing a first DNA fragment as a template, providing a pool of oligonucleotides having corresponding sequences to the first DNA fragment template; and generating, by combinatorial variations, a plurality of security markers each comprising a different grouping of oligonucleotides from the pool of oligonucleotides. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 27)
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15. A security marker comprising:
a plurality of oligonucleotides, said oligonucleotides complementary to a DNA template;
wherein said oligonucleotides are chosen by a combinatorial variation technique from a pool of oligonucleotides complementary to the DNA template.- View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A method for authenticating an article, comprising:
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selecting a security marker comprising oligonucleotides for the article to be authenticated, said oligonucleotides derived from a pool of rtDNA oligonucleotides; applying said security marker to the article; collecting a sample of the security marker from the article; analyzing the oligonucleotides in the security marker using PCR techniques with one DNA template complementary to the oligonucleotides in the security marker and a detection primer; generating an amplicon length profile corresponding to the oligonucleotides in the security marker; comparing the amplicon length profile to a security marker profile database; and determining if the amplicon length profile generated corresponds to the security marker associated with the article. - View Dependent Claims (23, 24, 25)
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Specification