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ELISA&LFIA-Positive Hybridoma Screening

Creative Biolabs proposes contracts with guaranteed results for the hybridoma development and antibody validation for enzyme-linked immunosorbent assay (ELISA) and lateral flow immunoassay (LFIA) research use. For each project, our team explores with the client the challenges of the project and defines the specifications. Our function-guaranteed antibody package will satisfy your need for quality antibodies that generate positive ELISA and/or LFIA results.

ELISA

ELISA is a plate-based immunoassay for the detection of markers in various samples. Several ELISA formats are currently employed in diagnostics depending on the abundance of the target, namely direct ELISA, indirect ELISA, and sandwich ELISA. Generally, ELISA antibodies are tagged with enzymatic labels and these assays can be designed for antigen detection or quantification.

Among all ELISA formats, sandwich ELISA has become the most useful and the most challenging to develop. Sandwich ELISA employs two primary antibodies binding non-overlapping epitopes of a given antigen. Similar to all other immunoassays, the validation of antibodies for ELISA should consider the type of samples and detection conditions to be used.

LFIA

While traditional PCR-based assay remains the golden standard in many areas, there is an increasing demand for other methods that enable quicker, easier, and more cost-effective tests. Double antibody sandwich-LFIA (DAS-LFIA) is an alternative strategy that can be used to detect various antigens in biological samples.

DAS-LFIA format is typically used for detecting larger molecules that have epitopes (e.g., 2 binding sites). The way they operate is quite straightforward: An antibody is attached to a binding site conjugated to a nanoparticle, and another antibody attached to another binding site is used to derive the test line. When the target molecule is present, the analyte will bind to both the antibody attached to the nanoparticle and the antibody on the test line, deriving a visual signal.

Both DAS-LFIA and ELISA require a pair of capture antibodies and detection antibodies that bind to different epitopes. However, the antibody pair with good performance in ELISA may not be effective in the LFIA detection system, and vice versa.

Our Services

The majority of hybridoma projects use indirect ELISA to screen hybridomas after HAT selection. However, ELISA-guaranteed antibody generally refers to two antibodies that can be used in a sandwich ELISA or two antibodies that bind different epitopes. Selecting a pair of capture antibodies and detection antibodies is very technical. Only pairs with high specificity, selectivity, and consistent linearity of dilution for the target will be used for further development. Plasma, serum, or tissue lysate will be used to validate antibody selectivity. In many cases, purified recombinant target proteins will be added into the biological matrix, which should be recovered and detected. The recovery observed for the spike should be almost identical in both the biological matrix and the standard diluent for a sample matrix to be considered valid for our ELISA assay. The development of LFIA functional antibodies generally involves the use of a chromatography platform to verify the function of the antibody after hybridoma is subcloned and cryopreserved and antibody is purified.

Fig.1 Hybridoma development services workflow. (Creative Biolabs Original)Fig.1 Hybridoma development services workflow.

Let our team of antibody production experts help you reach your custom hybridoma goals. Creative Biolabs provides the services you need to help you develop a novel polyclonal antibody, monoclonal hybridoma, or recombinant antibody. We deliver exceptional antibody development solutions from antigen design to purification and screening with guaranteed results.


All listed services and products are For Research Use Only. Do Not use in any diagnostic or therapeutic applications.

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