Method for forgery-proof marking;forgery-proof marking and kit
OwnerGeorg Bauer, Andr?eacute; Josten +1inventors
InventorsGeorg Bauer, Andr?eacute; Josten, Harald Walter
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Abstract
The invention relates to a counterfeit-proof marking having a carrier layer (1, 1a, 1b) having a communicating pore space and a probe formed from a first biomolecule contained therein. In order to make possible a rapid and reliable identification of the marking on the spot, it is provided according to the invention that the carrier layer (1, 1a, 1b) has a first marking surface (6) containing the probe and a second reference surface (7) not containing the probe.
Claims37
Process for the identification of a counterfeit-proof marking provided on an article, which marking has a carrier layer (1, 1a, 1b) having a communicating pore space with a probe contained therein formed of first biomolecules,
- the carrier layer (1, 1a, 1b) having a first marking surface (6) containing the probe and a second reference surface (7) not containing the probe,
- having the following steps:
- aa) impregnation of the carrier layer (1, 1a, 1b) with an identifying agent (11) which contains second biomolecules which are at least sectionally formed complementarily to the first biomolecules and
- bb) identification of a reaction occurring in the carrier layer (1, 1a, 1b) between the first and the second biomolecules,
- the marking surface (6) being observed and a fluorescence signal emanating therefrom being analyzed, and a check being carried out by observation of the reference surface.
Process according to one of the preceding claims, the carrier layer (1, 1a, 1b) being prepared from a light-transparent or a reflecting material.
Process according to one of the preceding claims, the carrier layer (1, 1a, 1b) being prepared from one of the following materials:
- cellulose, nitrocellulose, nylon, polyacrylamide gel, porous SiO2, nonwoven glass fiber material.
Process according to one of the preceding claims, the marking surface being provided with a mixture of different biomolecules containing the probe.
Process according to one of the preceding claims, the probe being formed from one of the following biopolymers:
- synthetic single-stranded nucleic acids or their natural and/or synthetic analogs, antigens, proteins, such as antibodies, antibody fragments, derivatives of antibodies or antibody fragments, nucleic acid-binding proteins, receptors, ligands.
Process according to one of the preceding claims, the probe being applied to the carrier layer (1, 1a, 1b) in a specified geometric arrangement.
Process according to one of the preceding claims, the probe being applied to the carrier layer (1, 1a, 1b) by means of a printing process, preferably by means of an inkjet printing head.
Process according to one of the preceding claims, the carrier layer (1, 1a, 1b) having a first application surface (5a), which is connected to the marking surface (6) or to a plurality of marking surfaces via a first route (8) or first routes.
Process according to one of the preceding claims, the first application surface (5a) being connected to the reference surface (7) or to a plurality of reference surfaces via a second route (9) or second routes.
Process according to one of the preceding claims, a second and/or further application surfaces (5, 5a, 5b) being provided, which are connected to one or more marking surfaces (6) and/or reference surfaces (7).
Process according to one of the preceding claims, the identifying agent (11) being transported along a first and/or second route by means of capillary forces from the application surface (5, 5a, 5b) to the marking surface (6) and/or reference surface (7).
Process according to one of the preceding claims, the carrier layer (1, 1a, 1b) being covered at least sectionally with a protective layer (3).
Process according to one of the preceding claims, the protective layer (3) being designed to be transparent.
Process according to one of the preceding claims, the carrier layer (1, 1a, 1b) being fixed to the article to be marked by means of an adhesive or by lamination.
Process according to one of the preceding claims, the carrier layer (1, 1a, 1b) being provided on its fixing-sided surface with an adhesive film, preferably an adhesive film having a peelable protective film.
Process according to one of the preceding claims, a dye being added to the identifying agent (11) indicating its spread in the carrier layer (1, 1a, 1b)
Process according to one of the preceding claims, the identifying agent (11) being added by means of a capillary (10) of a pen or of a pipette to the application surface (5, 5a, 5b) formed on the carrier layer (1, 1a, 1b).
Counterfeit-proof marking having a carrier layer (1, 1a, 1b) having a communicating pore space and a probe contained therein formed from a first biomolecule,
- characterized in that
- the carrier layer (1, 1a, 1b) has a first marking surface (6) containing the probe and a second reference surface (7) not containing the probe.
Kit according to claim 34 or 35, the identifying agent being a molecular beacon formed at least sectionally complementarily to the first biopolymer.
Dependencies are inferred from the claim text.