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W L JONES

Publications and source records attributed to W L JONES.

11 recordsLinked to original sources

TECHNICAL CONSIDERATIONS IN THE PREPARATION OF FLUORESCENT-ANTIBODY CONJUGATES.

A comparison was made of (NH(4))(2)SO(4), HCl, ethodin, and ethanol for fractionation of rabbit antiserum prior to conjugation with fluorescein isothiocyanate. Fractionation with the salt was found to be the method of choice from the standpoints of simplicity and recovery of antibody effective in conjugates prepared from the fractions. Effects of pH, temperature, dye-protein ratio, and molarity and type of buffer upon conjugation were studied. These technical factors were adjusted to produce conjugates for Corynebacterium diphtheriae which possessed higher specific titers than did reagents obtained by previously employed techniques.

Animals↗

IDENTIFICATION OF CORYNEBACTERIUM DIPHTHERIAE WITH FLUORESCENT ANTIBACTERIAL REAGENTS.

Moody, Max D. (Communicable Disease Center, Atlanta, Ga.) and Wallis L. Jones. Identification of Corynebacterium diphtheriae with fluorescent antibacterial reagents. J. Bacteriol. 86:285-293. 1963.-Conditions are described whereby fluorescent-antibody reagents could be prepared and used to identify Corynebacterium diphtheriae in pure and mixed cultures and in clinical materials. The use of O and OK antigens for immunization of rabbits to prepare the antibody was compared. The most satisfactory reagents were those made from serum of rabbits injected with live (OK) suspensions of C. diphtheriae. Such fluorescent reagents were used successfully in direct and indirect fluorescent-antibody tests to identify both toxinogenic and atoxinogenic C. diphtheriae but not to differentiate the two kinds of organisms.

Animals↗