Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving antigen-antibody binding – specific binding protein...
Patent
1994-11-07
1997-01-14
Housel, James C.
Chemistry: molecular biology and microbiology
Measuring or testing process involving enzymes or...
Involving antigen-antibody binding, specific binding protein...
435 722, 435 723, 435 725, 435 792, 436528, 436538, 436829, G01N 33533, G01N 33536, G01N 33537
Patent
active
055938485
ABSTRACT:
An improved assay of target components in a sample utilizes specific gravity-altering particles which are attached to the target components by specific antibodies. The attached specific gravity-altering particles are preferably liposomes which will buoy or sink the targets to a common level in the specimen sample when the latter has been centrifuged in a transparent tube. The liposomes can provide an accentuated and more pronounced indication of the presence of the targets in the sample due to their ability to contain many multiples of fluorescent or non-fluorescent dye molecules with minimal steric interference with the attached antibodies' binding ability.
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Britz Judith
Levine Robert A.
Mercolino Thomas J.
Rodriguez Rodolfo
Wardlaw Stephen C.
Becton Dickinson and Company
Housel James C.
Jones William W.
Parsons Nancy J.
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