What is double immunodiffusion technique?

Ouchterlony double immunodiffusion (also known as passive double immunodiffusion) is an immunological technique used in the detection, identification and quantification of antibodies and antigens, such as immunoglobulins and extractable nuclear antigens.

What are immunodiffusion techniques?

Immunodiffusion refers to the movement of the antigen or antibody or both antigen and antibody molecules in a diffusion support medium. It is a method of gel immunodiffusion: the solutions deposited in the wells dug in the gel diffuse homogeneously in all directions around the well.

What is double immunodiffusion assay?

The Ouchterlony double immunodiffusion assay is a serological technique used in the detection of antibodies and antigens for diagnostic purposes and also used in immunology laboratory courses as a common teaching assay where students observe the geometrical precipitation line patterns that form in the agarose.

What is the principle of double diffusion?

Principle: When soluble antigen and antibody samples are placed in adjacent wells in agarose gel, they diffuse radially into the agarose gel and set up two opposing concentration gradients between the wells.

What is double diffusion test?

In the gel double-diffusion test (Ouchterlony test), the virus-antibody reaction takes place in agar gel. Virus and antiserum are placed in opposite wells in an agar plate. Virus particles and antibodies then diffuse into the agar.

What is single and double immunodiffusion method also known as?

The commonly known types are: Single diffusion in one dimension (Oudin procedure) Double diffusion in one dimension (Oakley Fulthorpe procedure) Single diffusion in two dimension (radial immunodiffusion or Mancini method)

How many types of Immunodiffusion are there?

There are four different types of immunodiffusion techniques (Ananthanarayan and Paniker, 2005).

What are the types of Immunodiffusion?

The commonly known types are:

• Single diffusion in one dimension (Oudin procedure)
• Double diffusion in one dimension (Oakley Fulthorpe procedure)
• Single diffusion in two dimension (radial immunodiffusion or Mancini method)
• Double diffusion in two dimensions (Ouchterlony double immunodiffusion)

What is a double diffusion test?

Abstract. In the gel double-diffusion test (Ouchterlony test), the virus-antibody reaction takes place in agar gel. Virus and antiserum are placed in opposite wells in an agar plate. Virus particles and antibodies then diffuse into the agar.

What is the difference between radial immunodiffusion and double Immunodiffusion?

In double immunodiffusion, both antigen and antiserum together diffuses in the gel while in Single immunodiffusion only antibody is involved in the gel and only antigen diffuses in the gel.