Abstract: The present invention relates to a device and methods for detecting or quantifying an analyte in a test sample. The device includes a substrate defining one or more microchannels and having a reaction region in a first portion of the one or more microchannels, wherein the reaction region contains a first binding element selected to bind with a first portion of the analyte. The device also includes a detection region in fluid communication with the reaction region. The detection region includes a second binding element selected to immobilize the analyte within the detection region. Methods of detecting or quantifying an analyte in a test sample using the device of the present invention are also disclosed. A method for coating a polymer with a gold layer is also disclosed.

Abstract: The present invention relates to a microfluidic test device for detecting or quantifying an analyte in a test sample. The device includes a non-absorbent substrate having at least one microchannel imbedded in the substrate, a non-specific capture device, and one or more stationary mixing structures extending into the at least one microchannel. The present invention also relates to relates to various methods of using the microfluidic test device to detect or quantify an analyte in a test sample. The present invention also relates to a microfluidic device that includes a non-absorbent substrate having at least one microchannel imbedded in the substrate and one or more stationary mixing structures extending into the at least one microchannel.