Features To Look For In ELISA Test Kits

By Annabelle Holman


To figure out whether antibodies and antigens exist in a particular specimen you require a chemistry technique alluded to as Enzyme linked immunosorbent assay. The method has been used for a long time in the pharmaceuticals field. ELISA test kits are utilized for hypersensitivities, diabetes, steroids, tumor, parasitology, fertility, thyroid, immune system ailments and other maladies.

Before purchasing ELISA kits you need to ensure they meet some requirements. You need to get the right assay format. It is essential to have the correct container system as well as the best format for your experiment. There are quite a number of formats that you can choose to work with on your project.

The sandwich assay is mainstream with numerous individuals preferring it. The main reason behind why it is alluded to as a sandwich is on account of there being an antigen which is between a pair of antibodies. This arrangement is favored in view of its robustness and sensitivity. In a few cases this configuration is not favored. On the off chance that you have a little antigen then you will think that it hard to append substantial antibodies on it.

The next feature you need to consider is the types of antibodies. You can utilize polyclonal antibodies as well as monoclonal antibodies in ELISAs. At times it is advisable to use a combination of both. There are several factors you need to consider when choosing antibodies. When you using a sandwich assay then you might want to try the polyclonal antibody for the capture process and the monoclonal ones for detection. By doing this you will able to capture all antigens and then utilize the antibodies that are monoclonal to detect specific antigens.

It is important to confirm that the detection and capture antibodies are making a good team. When using a sandwich assay it is important to ensure that the detection and capture antibodies are not competing for one binding site. They should be able to recognize various epitopes which are not overlapping. If there is any interferences then the results will be skewed. A sure way of avoiding this problem is buying an already matched pair. You will find many antibody suppliers who can help you out.

Cross reactivity as well as interference is another feature to look for. Cross reactivity can be caused by antibodies that are on the host animal being compatible. It is not hard to purchase antibodies that are obtained from the animal in question. However, consider it important to find out if cross reactivity might pose a problem. In the sandwich format the secondary antibody that is utilized for the detection process must be right for the primary antibody that was utilized during detection.

You ought to figure out the washing and in addition the blocking buffers. Now and again you may discover compounds that will influence collaboration of the antibodies and antigens. You ought to consider detection method too. There are a couple of methods used for binding. Discover an pack that has the sort of detection method you would like.

If you want to know more about these features you can request details from representatives from the companies that sell the kits. They will be glad to inform you more about them and how to use them. The internet is also a source of information.




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