Blocking Buffers

Supplier: VWR Chemicals

RapidBlock™ solution reduces blocking time to five minutes for Western and dot blotting procedures on PVDF and nitrocellulose membranes. This protein-free formulation minimises cross-reactivity and non specific antibody binding, generating blots with low background and enhanced signal-to-noise ratio.

Supplier: G-Biosciences

BLOT-QuickBlocker™ is a modified milk protein that is highly soluble and does not inhibit peroxidase detection. The modified milk protein has high blocking efficiency with a clear background.

Supplier: G-Biosciences

NAP-BLOCKER™ is an animal-free protein blocking agent recommended for improved assay sensitivity, minimal non specific binding and a high signal-to-background ratio. It is suitable for Western blots, dot blots and assay development.

Supplier: G-Biosciences

Protein-Free™ Blocking buffer is a formulation of non-protein agents that eliminate non-specific binding sites in ELISA, blotting, immunohistochemistry and other applications. The absence of protein from the Protein-Free™ Blocking buffer eliminates problems associated with traditional protein based blockers, such as cross-reactivity and interference from glycosylated proteins.

Supplier: G-Biosciences

FirstChoice™ Blocking Buffer is ideal as a first choice for optimization of new assays and systems, or when determining the optimal blocking buffer for elimination of non specific binding sites in ELISA, blotting, immunohistochemistry and other applications. Buffers are conveniently supplied in widely used TBS (Tris-buffered saline at pH 7,5) and PBS (phosphate-buffered saline at pH 7,5) buffers as well as in separate formulations containing Tween® 20 for improving blocking efficiencies.

Supplier: G-Biosciences

Blocking buffer is an enhanced blocking agent available in multiple formats. Superior™ Blocking Buffer contains a proprietary antigenically non-determinant protein for blocking Western blot membranes, blocking and storage of ELISA plates, and blocking prior to immunohistochemistry staining.

Supplier: Abcam

Protein block is a serum-free blocking buffer designed to reduce non-specific background staining in IHC, ELISA, and western blot (WB). - Cited in over 90 publications - No need to match species for secondary antibodies, reducing animal serum handling - Ready-to-use – no mixing or dilution required

Supplier: Biotium

Fish gelatin is commonly used in blocking solutions to minimise background noise in immunodetection procedures such as Western Blotting and immunostaining. Fish gelatin can be used to block non-specific binding sites on positively charged nylon or PVDF membranes or for blocking and dilution of antibodies during immunostaining procedures. Unlike BSA or milk, fish gelatin does not contain IgG or serum proteins that could cross-react with mammalian antibodies.

Supplier: Abcam

10X blocking buffer (pH 7.5) for serum-free blocking of non-specific antibody binding. - Cited in over 30 publications - Suitable for ELISA, in-cell ELISA, ICC/IF, western blot (WB) - 100% casein blocking as preservative

Supplier: Rockland Immunochemicals

A blocking buffer specifically designed for western blotting using fluorochrome conjugated antibodies. Blocking buffer was prepared using ultra pure reagents dissolved in pharmaceutical grade water (WFI) and consists of a proprietary protein formulation in tris buffered saline at pH 7,6 with thimerisol added as an antimicrobial agent.

Supplier: Abcam

Immunoassay Blocking (BSA Free) (ab171535) maintains the activity of antibodies and other biomolecules adsorbed or immobilized to solid substrates.

Supplier: Biotium

The TrueBlack® WB blocking buffer kit is a ready-to-use buffer system that provides optimal specificity, sensitivity, and background signal suppression for fluorescence-based western blotting (WB).

Supplier: Thermo Fisher Scientific

SuperBlock Blocking buffer is an optimised solution containing a single purified glycoprotein that provides incredibly fast and effective blocking for ELISA, IHC, and western blot analysis. Blocking micro-plates, membranes, or tissues with a SuperBlock buffer yields a high signal-to-noise ratio in most detection systems.

Supplier: Thermo Fisher Scientific

This Fish Serum blocking buffer is steelhead salmon serum in PBS that is especially useful as a blocking agent in IHC and other detection methods involving mammalian samples.

Supplier: Thermo Fisher Scientific

Blocker BSA in PBS or TBS are ready-to-use, 1X PBS or TBS solutions of 10X (10%) bovine serum albumin protein for blocking steps in Western blot, ELISA, IHC and nucleic acid detection methods.

Supplier: Thermo Fisher Scientific

SuperBlock (TBS) Blocking Buffer is an optimised TBS solution containing a protein that provides incredibly fast and effective blocking for ELISA, IHC and Western blot analysis.