Surface for the immobilisation of nucleic acids
First Claim
1. A surface for the immobilization of one or several first nucleic acids as recognition elements (“
- immobilization surface”
), for the production of a recognition surface for the detection of one or several second nucleic acids in one or more samples which are brought into contact with the recognition surface, the first nucleic acids being applied to a layer of PLL-g-PEG (graft copolymer poly(L-lysine)-g-poly(ethyleneglycol)) as a surface for immobilization, characterized in that the grafting ratio g, in other words the ratio between the number of lysine units and the number of polyethylene glycol side chains (“
PEG”
side chains) has an average value between 7 and 13.
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Accused Products
Abstract
The invention relates to a surface for the immobilization of one or several first nucleic acids as recognition elements (“immobilization surface”), for the production of a recognition surface for the detection of one or several second nucleic acids in one or more samples which are brought into contact with the recognition surface, the first nucleic acids being applied to a layer of the graft copolymer poly(L-lysine)-g-poly(ethyleneglycol) (PLL-g-PEG) as surface for immobilization, characterized in that the grafting ratio g, in other words the ratio between the number of lysine units and the number of polyethylene glycol side chains (“PEG” side chains) has an average value between 7 and 13. The invention also relates to a method for the qualitative and/or quantitative detection of one or more second nucleic acids in one or more samples, characterized in that said samples and optionally further reagents are brought into contact with an immobilization surface according to the invention, upon which one or several first nucleic acids are immobilized as recognition elements for specific binding/hybridization with said second nucleic acids and changes in optical or electronic signals resulting from the binding/hybridization of said second nucleic acid, or further, resulting from applied tracer substances applied for analyte detection, are measured.
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Citations
56 Claims
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1. A surface for the immobilization of one or several first nucleic acids as recognition elements (“
- immobilization surface”
), for the production of a recognition surface for the detection of one or several second nucleic acids in one or more samples which are brought into contact with the recognition surface, the first nucleic acids being applied to a layer of PLL-g-PEG (graft copolymer poly(L-lysine)-g-poly(ethyleneglycol)) as a surface for immobilization, characterized in that the grafting ratio g, in other words the ratio between the number of lysine units and the number of polyethylene glycol side chains (“
PEG”
side chains) has an average value between 7 and 13. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
- immobilization surface”
Specification