摘要:
Specific binding methods are used for diagnostic assays and purification separations whereby the specific binding capture reagent is prepared from copolymers having highly reactive carboxy groups. These groups are extended from the polymer surface with a linking group having from 8 to 50 atoms in the chain and two or more alkylene, arylene, alkylenearylene or arylenealkylene groups. To these reactive groups is attached a biologically active substance such as a protein or oligonucleotide which then participates in the diagnostic assays or purification separation methods.
摘要:
Biologically active reagents are prepared from particles of copolymers having highly reactive carboxy or equivalent groups. The reagents are prepared by covalently attaching biologically active substances, for example antibodies, to the particles, directly or indirectly through highly reactive carboxy groups on the particle surface. These reagents are used to advantage in analytical elements, methods for the detection of specific binding ligands (such as immunological species) and immunoassays, and in purification methods as affinity chromatography reagents.
摘要:
Biologically active reagents are prepared from particles of copolymers having highly active succinimid groups. The reagents are prepared by covalently attaching biologically active substances, for example antibodies, to the particles, directly or indirectly through amide groups by displacement of highly active succinimid groups on the particle surface. These reagents are used to advantage in analytical elements, methods for the detection of specific binding ligands (such as immunological species) and immunoassays, and in purification methods such as affinity chromatography.
摘要:
Water-insoluble, noncrosslinking, nonporous copolymers are provided which have recurring units derived from:(a) from 0 to about 99.9 mole percent of one or more ethylenically unsaturated polymerizable oleophillic monomers which provide hydrophobicity to said copolymer, provided that none of said monomers are crosslinking monomers,(b) from about 0.1 to 100 mole percent of one or more ethylenically unsaturated polymerizable monomers having a succinimidoxycarbonyl group, and(c) from 0 to about 10 mole percent of one or more ionic or polar hydrophilic ethylenically unsaturated polymerizable monomers. These copolymers have a variety of uses, including diagnostic assays.
摘要:
The invention is directed to labeled drug hapten analogues comprising:(A) a label, of the type used in immunoassays, having an amine or sulfhydryl group;(B) a drug hapten nucleus selected from barbiturates or hydantoins and(C) a linking chain linking the 3-position of the drug hapten nucleus to the label through a carbonyl bridge.
摘要:
The invention is directed to new drug hapten analogues comprising:(A) an active ester group;(B) a drug hapten nucleus selected from a hydantoin nucleus or a barbiturate nucleus and(C) a linking chain linking the 3-position of the drug hapten nucleus to the active ester group.
摘要:
The invention is directed to labeled drug hapten analogues comprising:(A) a label, of the type used in immunoassays, having an amine or sulfhydryl group;(B) a drug hapten nucleus selected from barbiturates or hydantoins and(C) a linking chain linking the 3-position of the drug hapten nucleus to the label through a carbonyl bridge.
摘要:
A biologically active reagent is prepared by reacting a biologically active substance covalently to a polymeric particle having pendant aldehyde groups. Such groups are provided by a polymerizable monomer represented by the structure: ##STR1## wherein Ar is arylene, R and R.sup.1 are independently hydrogen, halo or lower alkyl, R.sup.2 and R.sup.3 are independently alkylene of 1 to 4 carbon atoms in the chain, R.sup.4 is arylene, m is 0 or 1, and n is an integer of 1 to 4. These reagents can be used in a variety of specific binding and affinity purification methods, and in both solution assays and dry analytical elements.
摘要:
Nucleic acids can be made available for amplification or other treatment after lysis by contacting the lysate with specific weakly basic polymers to form a precipitate with the nucleic acids at acidic pH. After removing non-precipitated materials, the pH is then made basic, thereby releasing the nucleic acids from the polymer. This method for preparing specimen samples is simple and quite rapid, and the released nucleic acids can be further treated in hybridization assays or amplification procedures. The weakly basic polymers are water-soluble and cationic at acidic pH, but neutral in charge at basic pH.
摘要:
The invention is directed to an immunoassay for a thyronine derivative comprising:A. contacting a liquid sample, containing a thyronine derivative, with a labeled thyronine hapten analogue of the derivative in the presence of antibodies for the thyronine derivative under conditions that promote the formation of antibody-thyronine immunocomplexes; andB. determining the bound or unbound quantity of the thyronine derivative in the liquid; characterized in that the labeled thyronine derivative comprises:(i) a label, of the type used in immunoassays, having an amine or sulfhydyl group;(ii) a thyronine nucleus and(iii) a linking chain linking the label to the thyronine nucleus.