Agglutination description

Absorption of antimicrobial agents, influencing factors, 15 Acidophilin, food preservative, 94,95t Agglutination application, 150 description, 149-150 American foulbrood control oxytetracycline, 36-45 sulfathiazole, 36,37f Amikacin, use in food animals, 19 Aminoglycoside detection, by... 

Description and Properties. — Ammoniac is found in tears and drops, sometimes distinct, but more generally in agglutinated masses. Externally the tears ore yellow, with a tinge of brown, with a waxy lustre internally they are whits or cream-colored, and opaque. It is moderately hard, and at ordinary temperatures brittle, but softens like wax with the heat of the hood. It hoe a faint and somewhat unpleasant, but very peculiar odor, best detected by subjecting it te heat j its teste is bitter and nauseous. 

For many years, antigen-antibody reactions have been studied by agglutination techniques using red cells or "latex particles which were coated with antigen or antibody. In this case, particles are regarded as a labeled marker. Descriptions of several methods that have been devised for detecting agglutination follow. 

The capsular antigens of enterobacteria have been examined serologically and chemically since their description as substances which prevented the agglutination of live cells by O-specific antisera. The K1 capsular antigen as previously noted deserves special mention for its association with invasive E. coli infection. It is a homopolymer of a2->-8 linked iV-acetylneuraminic acid (Figure 5.7). A-acyl derivatives of neuraminic acid are collectively known as sialic acids, and are important constituents of manunalian glycoproteins and glycolipids located in the cell coat. A-acetylneuraminic acid is found in human tissue, and the presence... 

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