Analytical assay device and methods using surfacta

专利名称：Analytical assay device and methods using

surfactant treated membranes to increaseassay sensitivity

发明人：Albert E. Chu申请号：US09904453申请日：20010711公开号：US06558959B2公开日：20030506

专利附图：

摘要：An analytical device comprising a surfactant-treated porous reaction membranehaving an exposed sample-contacting surface and at least one receptor area located in a

limited region of the exposed sample-contacting surface. The limited region has a higherconcentration of surfactant than areas of the sample-contacting surface that areperipheral to the limited region. To make the device, a surfactant-containing solutioncomprising at least 0.2% surfactant is added to the reaction membrane and allowed todry. Then, a receptor reagent is added to a limited region of the reaction membrane. Inthe assay, the surfactant causes the liquid sample to flow faster through the portion(s) ofthe reaction membrane where receptor molecules are located.

申请人：CHU ALBERT E.

代理机构：Dorsey & Whitney LLP

代理人：David J. Brezner

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