Detection of analytes using reorganization energy
First Claim
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1. A method of detecting a target analyte in a test sample comprisinga) adding a target analyte to an electrode comprisingi) a transition metal complex having water in its first or second coordination sphere comprising a metal selected from the group consisting of manganese, technetium, rhenium, iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium, platinum, copper, silver and gold, wherein said transition metal complex has a first E0;
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such that upon binding of said target analyte to said binding ligand, water is excluded from the first or second coordination sphere of said metal complex resulting in a second E0; and
b) measuring electron transfer of said transition metal complex at said second E0.
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Abstract
The invention relates to novel methods and compositions for the detection of analytes using the nuclear reorganization energy, λ, of an electron transfer process.
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28 Claims
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1. A method of detecting a target analyte in a test sample comprising
a) adding a target analyte to an electrode comprising i) a transition metal complex having water in its first or second coordination sphere comprising a metal selected from the group consisting of manganese, technetium, rhenium, iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium, platinum, copper, silver and gold, wherein said transition metal complex has a first E0; - and
ii) a binding ligand which is sterically close to the transition metal complex, that will bind said target analyte;
such that upon binding of said target analyte to said binding ligand, water is excluded from the first or second coordination sphere of said metal complex resulting in a second E0; andb) measuring electron transfer of said transition metal complex at said second E0. - 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)
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Specification