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AssigneeBritish Biocell International Limited
InventorJohn Anthony Chandler
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An assay device for detecting the presence of an analyte in a sample, wherein a visible signal indicative of the presence or absence of said analyte is produced at a detection site on a support, characterised in that said signal is generated or enhanced by means of a signal enhancement reaction between a labelled first binding reagent which is labelled and a label developing means, which are arranged to be delivered to the detection site in a single assay step but in a sequential manner such that the first binding reagent arrives at the detection site ahead of the label developing means. The sequential delivery of the reagents to the detection site is provided by techniques such as liquidic circuits, slow release agents, and others. Methods of carrying out assays and kits for use in the assays form a further aspect of the invention.
An assay device for detecting whether or not an analyte is present in a sample, wherein a visible signal indicative of the presence or absence of said analyte is produced at a detection site on a support, wherein the device is a strip device having a single channel and said signal is generated or enhanced by means of a signal enhancement reaction between a first binding reagent which comprises an invisible label and a label developing means which is effective to render the invisible label visible, said first binding reagent and label developing means being arranged to be delivered to the detection site in a single assay step by application of the sample, but in a sequential manner such that the first binding reagent arrives at the detection site ahead of the label developing means.
An assay device comprising
Dependencies are inferred from the claim text.