Real-time detection of the chemokine CXCL12 in urine samples by surface plasmon resonance

Beatriz Vega


► We developed an effective Surface plasmon resonance method to detect functional analytes in urine. ► The technique uses virions bearing a G protein-coupled receptor in the context of the cell membrane. ► We tested for CXCL12 in urine from rheumatoid arthritis patients. ► The use of virions is robust, simple and reproducible. ► The assay detects ligand binding in an environment that mimics in vivo conditions


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