double diffusion in two dimensions
- double diffusion in two dimensions
- double diffusion in which antigen and antiserum are placed in wells cut in an agar plate; antigen solutions to be compared are placed in wells equidistant from the antiserum well. Three principal types of reaction may occur, reaction of identity, reaction of nonidentity, and reaction of partial identity (see under reaction), each identified by a characteristic pattern of precipitin lines, indicating the extent to which the antigen samples a share antigenic determinants. Called also Ouchterlony technique.
Medical dictionary.
2011.
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Ouchterlony technique — double diffusion in two dimensions; see under diffusion … Medical dictionary
Ouchterlony test — double diffusion in two dimensions; see under diffusion … Medical dictionary
reaction of identity — a reaction pattern seen in double diffusion in two dimensions: the precipitin lines between the antigen wells and the antiserum well stop at their point of intersection, indicating that the antigen samples are identical. See also r. of… … Medical dictionary
Ouchterlony technique (test) — Ouch·ter·lo·ny technique (test) (okґtər lo″ne) [Orjan Thomas Gunnarson Ouchterlony, Swedish bacteriologist, 1914–2004] double diffusion in two dimensions; see under diffusion … Medical dictionary
reaction of nonidentity — a reaction pattern seen in double diffusion in two dimensions: the precipitin lines between the antigen wells and the antiserum well cross, indicating that the antigen samples have no antigenic determinants in common. See also r. of identity and… … Medical dictionary
reaction of partial identity — a reaction pattern seen in double diffusion in two dimensions: one of the precipitin lines between the antigen wells and the antiserum well stops at the point of intersection, whereas the other continues past it, indicating that the antigen… … Medical dictionary
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