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A PCR reaction consists of the template DNA, two primers covering the amplification site, an enzyme, and buffers. Multiplexing such a reaction amplifies the design challenges where one target requires 3 primers, which should be exclusively bound nowhere in the template DNA or to each other. Similarly, two targets require 6, three require 9, and so on. Each amplicon needs to be either a different size (for gels) or labeled with a different fluorescent tag that is spectrally distinct from the others in the reaction. Further complicating this, different targets in the reaction can compete with each other for resources and causes more challenges in the detection of amplicons. However, with proper primer designing, their validation, optimize quality and concentration of the enzyme and buffers certainly lead to a successful multiplex PCR reaction.
A PCR reaction consists of the template DNA, two primers covering the amplification site, an enzyme, and buffers. Multiplexing such a reaction amplifies the design challenges where one target requires 3 primers, which should be exclusively bound nowhere in the template DNA or to each other. Similarly, two targets require 6, three require 9, and so on. Each amplicon needs to be either a different size (for gels) or labeled with a different fluorescent tag that is spectrally distinct from the others in the reaction. Further complicating this, different targets in the reaction can compete with each other for resources and causes more challenges in the detection of amplicons. However, with proper primer designing, their validation, optimize quality and concentration of the enzyme and buffers certainly lead to a successful multiplex PCR reaction.
Get tips on using Live or Dead™ Cell Viability Assay Kit *Green/Red Dual Fluorescence to perform Live / Dead assay mammalian cells - rat endothelial progenitor cells
ELISA is the most commonly used method of detecting and quantifying the concentration of an antigen in an unknown sample. During the experiment, If you get a weak signal, then make sure reagents are at room temperature before starting the assay. Try increasing incubation times to ensure maximal antibody binding and amplify the signal. Secondly, if you get values above 0 in the negative control indicates a high background signal. Try to consider reducing your antibody concentration and prevent non-specific binding of antibodies by using affinity-purified antibody and suitable blocking buffers. To avoid high well to well variation, do not stack plates during incubation, no bubbles in the plate and wash wells thoroughly to avoid variation.
ELISA is the most commonly used method of detecting and quantifying the concentration of an antigen in an unknown sample. During the experiment, If you get a weak signal, then make sure reagents are at room temperature before starting the assay. Try increasing incubation times to ensure maximal antibody binding and amplify the signal. Secondly, if you get values above 0 in the negative control indicates a high background signal. Try to consider reducing your antibody concentration and prevent non-specific binding of antibodies by using affinity-purified antibody and suitable blocking buffers. To avoid high well to well variation, do not stack plates during incubation, no bubbles in the plate and wash wells thoroughly to avoid variation.
ELISA is the most commonly used method of detecting and quantifying the concentration of an antigen in an unknown sample. During the experiment, If you get a weak signal, then make sure reagents are at room temperature before starting the assay. Try increasing incubation times to ensure maximal antibody binding and amplify the signal. Secondly, if you get values above 0 in the negative control indicates a high background signal. Try to consider reducing your antibody concentration and prevent non-specific binding of antibodies by using affinity-purified antibody and suitable blocking buffers. To avoid high well to well variation, do not stack plates during incubation, no bubbles in the plate and wash wells thoroughly to avoid variation.
ELISA is the most commonly used method of detecting and quantifying the concentration of an antigen in an unknown sample. During the experiment, If you get a weak signal, then make sure reagents are at room temperature before starting the assay. Try increasing incubation times to ensure maximal antibody binding and amplify the signal. Secondly, if you get values above 0 in the negative control indicates a high background signal. Try to consider reducing your antibody concentration and prevent non-specific binding of antibodies by using affinity-purified antibody and suitable blocking buffers. To avoid high well to well variation, do not stack plates during incubation, no bubbles in the plate and wash wells thoroughly to avoid variation.
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