Immobilon^® Block - CH (Chemiluminescent Blocker)

In Western blotting, blocking of unbound membrane sites is necessary to prevent non-specific binding of the antibodies which otherwise would lead to a high background on the blot. The traditional milk blocker can work well; however, inadvertent variations in its composition can lead to irreproducible results. Such variations include the milk’s concentration, fat content, solubility, detergent quality, and numerous other factors. Bløk reagents are a family of protein-free, noisecancelling reagents that reduce background for consistent, quality results. They are available in three room temperature-stable, ready-to-use formulations for Chemiluminescence and chromogenic detection, Fluorescence detection, and Phosphoprotein immunodetection. The protein-free nature of Bløk reagents allows for membranes to be stained with chromogenic reagents, such as Ponceau S or Coomassie™ blue, after blocking or immunodetection. Bløk reagents have been tested and validated for Western blot, dot blot, and ELISA applications.

There’s so much room for experimental variability in traditional immunodetection workflows. For your peace of mind – and ours – we designed the SNAP i.d.® 2.0 system to streamline your Western blot and immunohistochemistry experiments. The concept is simple: a vacuum-driven flow of blocking, antibody, and washing solutions reduces slide and membrane handling. That means a lot less shaking, dipping, pouring and waiting. And now you can process multiple blots and slides in parallel, so it’s easy to apply consistent conditions across experiments.

Antibody reuse for Western blotting is a common practice for many researchers. While many antibodies lose potency with time or degrade even faster due to improper storage conditions, it is important to recognize the potential value of recovering the primary antibody for possible reuse in some experiments. The SNAP i.d.® 2.0 system is not only able to reduce the immunodetection processing time, but its flexibility lets you combine conditions used in the standard immunodetection protocol and also allows the collection of antibody for future reuse. Here, we compare the antibody recovery and reuse in the standard immunodetection protocol with the antibody recovery and reuse in SNAP i.d.® system using the extended protocol and the original SNAP i.d.® protocol.