Gentamicin assay and products therefor
AssigneeBecton, Dickinson and Company
InventorDavid Bernstein
Life of this patent
Estimating the term…
Abstract
A gentamicin protein conjugate adsorbed on a solid support, in particular, polystyrene particles, is crosslinked by a crosslinking agent to increase the stability of the supported conjugate. The particles also generally include an adsorbed protein to increase the strength of the crosslinking network. An improved conjugate is provided by the use of orosomucoid as the protein. The sensitized particles can be employed in an agglutination inhibition card test.
Claims35
A product comprising:
- a gentamicin-protein conjugate adsorbed on a solid support, said conjugate being crosslinked by a crosslinking agent to increase the stability thereof.
A product comprising:
- a conjugate of gentamicin and orosomucoid, said conjugate being supported on a solid support.
A kit for the assay of gentamicin by an agglutination procedure, comprising:
- a gentamicin-protein conjugate adsorbed on a solid particulate support, said conjugate being crosslinked by a crosslinking agent to increase the stability thereof;
- and
- antisera to gentamicin.
An improved card assay kit for determination of gentamicin by an agglutination procedure, comprising:
- a gentamicin-protein conjugate comprised of orosomucoid as the protein supported on a solid particulate support;
- an antibody to gentamicin;
- and
- an assay card, said assay card including a plurality of separated marked areas for receiving serial dilutions of a gentamicin sample and a plurality of separated marked areas for receiving gentamicin standard, whereby serial dilution of a sample and assay thereof can be conducted on the card.
An improved card assay kit for determination of gentamicin by an agglutination procedure, comprising:
- a gentamicin-protein conjugate supported on a solid particulate support;
- an antibody to gentamicin;
- gentamicin standard;
- and
- an assay card, said assay card having a surface including a sample portion and a standard portion, said sample portion being comprised of at least one series of separated marked serial dilution areas for receiving at least one series of serial dilutions of a gentamicin sample, each of which has an indicia of the dilution, said standard portion including at least two separated marked standard areas for receiving gentamicin standard of different gentamicin concentration, each having an indicia of the gentamicin concentration, whereby a quantitative determination of gentamicin in a sample can be determined directly on the card by serial dilution of sample on the card, adding antibody to gentamicin and the gentamicin-protein conjugate to the serial diluted gentamicin samples and gentamicin standards and determining the lowest standard concentration and the highest dilution at which agglutination is inhibited.
Dependencies are inferred from the claim text.