Alkaline activation for immobilization of DNA taggants
US9790538B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2013 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Mar 7, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D25/387
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The invention provides methods for stably binding and immobilizing deoxyribonucleic acid onto objects and substrates. The method includes exposing the deoxyribonucleic acid to alkaline conditions, and contacting the deoxyribonucleic acid to the object or substrate. The alkaline conditions are produced by mixing the deoxyribonucleic acid with an alkaline solution having a pH of about 9.0 or higher, and contacting the deoxyribonucleic acid to the substrate. The immobilized DNA can be used as a taggant and can be used in combination with other detectable taggants, such as optical reporters. Methods for authentication of a DNA marked object are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.