BA79 nitrocellulose membrane
Highly sensitive, 0.1µm nitrocellulose membrane with large surface area and high protein binding.
What is a flow-through immunoassay?
Flow-through immunoassays, also known as vertical flow or transverse flow immunoassays, are basically “semi-dry” dot-blots. Due to miniaturization and a certain degree of integration, the volumes of sample and reagents are reduced and the assay can be performed in a simple disposable device. The reaction membrane is laid on top of an absorbent pad. When agents are applied onto the membrane they are drawn through by the absorbent which acts as a sink for all liquids used in processing of the test.
Membranes and absorbents for flow-through assays
The degree of integration in flow-through assays is considerably less compared to lateral flow immunoassays. This makes development and production easier and may also avoid some of the most important patents which apply to immunodiagnostic assays. Find out how to choose the most suitable membranes and absorbents.
Infographic: Navigating the journey for flow-through immunoassays
We’ve taken our knowledge of flow-through immunoassay development and the elements needed for optimal performance and developed an infographic to explore the pros and cons of this technique.
Diagnostic Services
Helping you build and accelerate the development of smarter molecular and immunodiagnostic assays
Development of molecular assays for POC environments
Components and services to support molecular assay development in point-of-care settings
Immunodiagnostics in the laboratory environment
Antibody, protein enrichment and purification technologies to facilitate immunoassays
