Biosensor and its use to indicate the status of a product
AssigneeBioett AB
InventorsJohan Sjöholm, Per-Olof Erlandsson
Life of this patent
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Abstract
A biosensor comprises a unit, comprising a substrate and an enzyme, which when brought into contact with the substrate is adapted to affect the substrate so that its conductivity changes as a function of time and temperature, and an electric circuit. The unit is included as a component in said electric circuit and the electric circuit is activable by applying an electric field and/or a magnetic field over the same to generate a measurable signal which is dependent on the total resistance of the circuit. The invention also relates to the use of a biosensor, a label with such a biosensor and a method of indicating the status of a product with such a biosensor.
Claims20
A biosensor for indicating the status of a product, that comprises
- unit (1), comprising a substrate (1b) and an enzyme (1a) selected from one of the enzyme classes Transferases, Hydrolases and Lyases, which when brought into contact with the substrate (1b) is adapted to affect the substrate (1b) so that conductivity changes as a function of time and temperature, and
- an electric circuit (2),
- said unit (1) being included as a component in said electric circuit (2), and
- said electric circuit (2) being activated by applying an electric field and/or a magnetic field (M) over the product to generate a measurable signal, which is dependent on the total resistance of the circuit (2) and indicates enzyme activity in the product.
Dependencies are inferred from the claim text.