Method and reagents for binding chemical analytes to a substrate surface, and related analytical devices and diagnostic techniques

摘要

A method for detecting an analyte of interest in a sample includes the steps of binding the analyte to the surface of a substrate through a biotin-biotin binding protein interaction, contacting the surface-bound analyte with a quantitatively detectable analyte-binding moiety that binds thereto, measuring the quantity of detectable moiety bound to the substrate surface (11) and deriving therefrom the quantity of analyte in solution. A preferred use for the present method is in conjunction with a piezoelectric surface transverse wave device.