| http://www.w3.org/ns/prov#value | - Another aspect of the invention is an assay for detecting an antigen, which comprises: (a) obtaining a lipid bilayer coated bead that displays a binding agent, wherein below the lipid bilayer the bead is coated with a detectable label; (b) linking a ligand to each antigen in a test sample to generate test antigen-ligand conjugates, wherein the ligand will bind to the binding agent displayed by the
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