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gel diffusion |
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diffusion /dif·fu·sion/ (dĭ-fu´zhun)
1. the process of becoming diffused, or widely spread. 2. the spontaneous movement of molecules or other particles in solution, owing to their random thermal motion, to reach a uniform concentration throughout the solvent, a process requiring no addition of energy to the system. 3. in hemodialysis, the movement of solutes across semipermeable membranes down concentration gradients. 4. immunodiffusion. double diffusion an immunodiffusion test in which both antigen and antibody diffuse into a common area so that, if the antigen and antibody are interacting, they combine to form bands of precipitate. gel diffusion a test in which antigen and antibody diffuse toward one another through a gel medium to form a precipitate.
gel diffusion. See immunodiffusion. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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