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5098842 Medium, apparatus and method for cell separation
PATENTABSTRACTS
474
decompose said peroxide catalytically; (iii) an alkaline buffer solution having the capacity to maintain the pH at a value within the range of 9.5 to 14; and (iv) a colorless oxidizable substrate (such as tyrosine, beta-(3,4-dihydroxyphenyi)alpha-alamine (DOPA) or caffeic acid), which on reaction with oxygen at said pH value gives a visibly colored oxidation product; and (b) observing whether a color develops indicating the presence of peroxidase-containing fungus in the sample. Also included is a test kit for carrying out the method of the invention.
A sintered hydroxycalcium apatite body having an average particle size of 50-2,000 mum is used to form a packing in a cell separating column for use in separating groups or populations of cells from a suspension of animal cells.
5098846 SOLID PHASE PROTEIN ASSAY BY SOLID PHASE FREE SITE TITRATION Nigel Fleming assigned to McLean Hospital
5098832 ISOLATING MEDIUM FOR IDENTIFYING THE SALMONELLA BACTERIUM Alain Rambach, Paris, France assigned to Technogram The present invention relates to an isolating medium for the identification of the Salmonella bacterium, wherein a polyoi metabolizable by Salmonella and a pH indicator reacting to acidification are added to a culture support containing peptones. The present invention also relates to a process for identifying the Salmonella bacterium from the said medium.
5098835 PROCESS FOR PRODUCING L-THREONINE BY FERMENTATION Katsushige Yamada, Hiromi Tsutsui, Kyousuke Yotsumoto, Makoto Shirai, Aichi, Japan assigned to Toray Industries Inc Microorganisms belonging to the genus Providencia the species rettgeri at least leucine for the growth thereof, produce L-threonine by fermentation in higher yield and with increased amount of L-threonine accumulated.
5098842 MEDIUM, APPARATUS AND METHOD FOR CELL SEPARATION Toru Nakajima, Masahiro Sato, Katsuhiko Nishimura, Sumiaki Tsuru, Tokyo, Japan assigned to Asahi Kogaku Kogyo K K
The invention relates to a quantitative assay for an analyte which comprises contacting a sample containing an analyte with a solid phase support to immobilize said analyte, following by indirectly quantitating the presence of bound analyte by titrating the unoccupied binding sites with a titrating protein which is detectably labeled.
5099000 DERIVATIVES AND ANALOGUES OF MONOETHYL GLYCINEXYLIDIDE AND THEIR PRODUCTION AND USE Lawrence Kolaczkowski, Mark Littlefield assigned to Abbott Laboratories A substituted monoethylglycinexylidide or analogue is disclosed. The xylidide or analogue has the structure of FIG. I of the attached drawings where M is CH2NHCH2CH3, CH2CH2CH2CH3 or CH2OCH2CH3, one of YI and Y2 is H and the other is a protein or a fluorescein moiety chemcially bonded to the glycinexylidide or analogue moiety. Also disclosed is a method for carrying out immunoassays for MEGX, which has the structure of FIG, 3 of the attached drawings. The method for carrying out immunoassays involves using the foregoing compounds as tracers and immunogens,
5100775 METHOD FOR CONDUCTING NUCLEIC ACID HYBRIDIZATION IN CHAMBER WITH PRECISE FLUID DELIVERY Peter J Smyczek, John A Thompson
474
decompose said peroxide catalytically; (iii) an alkaline buffer solution having the capacity to maintain the pH at a value within the range of 9.5 to 14; and (iv) a colorless oxidizable substrate (such as tyrosine, beta-(3,4-dihydroxyphenyi)alpha-alamine (DOPA) or caffeic acid), which on reaction with oxygen at said pH value gives a visibly colored oxidation product; and (b) observing whether a color develops indicating the presence of peroxidase-containing fungus in the sample. Also included is a test kit for carrying out the method of the invention.
A sintered hydroxycalcium apatite body having an average particle size of 50-2,000 mum is used to form a packing in a cell separating column for use in separating groups or populations of cells from a suspension of animal cells.
5098846 SOLID PHASE PROTEIN ASSAY BY SOLID PHASE FREE SITE TITRATION Nigel Fleming assigned to McLean Hospital
5098832 ISOLATING MEDIUM FOR IDENTIFYING THE SALMONELLA BACTERIUM Alain Rambach, Paris, France assigned to Technogram The present invention relates to an isolating medium for the identification of the Salmonella bacterium, wherein a polyoi metabolizable by Salmonella and a pH indicator reacting to acidification are added to a culture support containing peptones. The present invention also relates to a process for identifying the Salmonella bacterium from the said medium.
5098835 PROCESS FOR PRODUCING L-THREONINE BY FERMENTATION Katsushige Yamada, Hiromi Tsutsui, Kyousuke Yotsumoto, Makoto Shirai, Aichi, Japan assigned to Toray Industries Inc Microorganisms belonging to the genus Providencia the species rettgeri at least leucine for the growth thereof, produce L-threonine by fermentation in higher yield and with increased amount of L-threonine accumulated.
5098842 MEDIUM, APPARATUS AND METHOD FOR CELL SEPARATION Toru Nakajima, Masahiro Sato, Katsuhiko Nishimura, Sumiaki Tsuru, Tokyo, Japan assigned to Asahi Kogaku Kogyo K K
The invention relates to a quantitative assay for an analyte which comprises contacting a sample containing an analyte with a solid phase support to immobilize said analyte, following by indirectly quantitating the presence of bound analyte by titrating the unoccupied binding sites with a titrating protein which is detectably labeled.
5099000 DERIVATIVES AND ANALOGUES OF MONOETHYL GLYCINEXYLIDIDE AND THEIR PRODUCTION AND USE Lawrence Kolaczkowski, Mark Littlefield assigned to Abbott Laboratories A substituted monoethylglycinexylidide or analogue is disclosed. The xylidide or analogue has the structure of FIG. I of the attached drawings where M is CH2NHCH2CH3, CH2CH2CH2CH3 or CH2OCH2CH3, one of YI and Y2 is H and the other is a protein or a fluorescein moiety chemcially bonded to the glycinexylidide or analogue moiety. Also disclosed is a method for carrying out immunoassays for MEGX, which has the structure of FIG, 3 of the attached drawings. The method for carrying out immunoassays involves using the foregoing compounds as tracers and immunogens,
5100775 METHOD FOR CONDUCTING NUCLEIC ACID HYBRIDIZATION IN CHAMBER WITH PRECISE FLUID DELIVERY Peter J Smyczek, John A Thompson