Patent EP0210449A2 successfully refreshed from Google Patents.
← Back to Patent Explorer
EP0210449A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Prolonged chemiluminescence

Assignee: Bayer Corp
•
Filing: 1986-06-30
•
Granted: —
•
Expires: 2006-06-30
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A chemiluminescence process comprising the contacting of a chemiluminescence precursor, an oxidant, an enzyme and a nitrogen compound selected from the group consisting of ammonia and a water-soluble organic amine. The reaction of such process can be used in detection of nucleic acid hybrids, antibodies, antigens and peroxidase enzymes and in producing light. Another chemiluminescence process comprises the contacting of a chemiluminescence precursor, an oxidant, an enzyme, a chemiluminescence enhancer and a nitrogen compound selected from the group consisting of ammonia and water-soluble organic amines. The reaction of such process can be used in detection of nucleic acid hybrids, antibodies, antigens and peroxidase enzymes and in producing light. A nucleic acid probe capable of participating in a chemiluminescent reaction comprising a defined nucleic acid sequence. the sequence being linked to any one of a a chemiluminescence precursor, b. a chemiluminescence enhancer, and c. an enzyme the remaining two of (a), (b) and (c) not linked to the sequence being in a mixture of the linked sequence. A method for determining a particular single stranded polynucleotide sequence in a test medium, comprising the steps of: (a) combining the test medium with a polynucleotide probe having a base sequence substantially complementary to the sequence to be determined, (b) labeling either the resulting hybrids or probe which has not hybridized with the sequence to be determined with one of the participants in an enhanced chemiluminescent reaction involving a chemiluminescent precursor, an enzyme, an oxidant, and a chemiluminescence enhancer, (c) initiating such chemiluminent reaction with the labeled hybrid or probe, and (d) detecting the resulting light emission.

Inventors

  • 👤 Nanibhushan Dr. Dattagupta
  • 👤 Anton H. Clemens

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-31 08:44
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/531; G01N33/532; G01N33/533; C; C12; C12Q; C12Q1/00; C12Q1/26; C12Q1/28; C12Q1/68; C12Q1/6813; C12Q1/6816

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 38 words
A chemiluminescence process comprising contacting a chemiluminescence precursor, an oxidant, and an enzyme, characterized in that such contact is in the presence of a nitrogen compound selected from the group consisting of ammonia and a water-soluble organic amine.
Claim 2
Dependent Claim 38 words
A chemiluminescence process comprising contacting a chemiluminescence precursor, an oxidant, and an enzyme, characterized in that such contact is in the presence of a nitrogen compound selected from the group consisting of ammonia and a water-soluble organic amine.
Claim 3
Dependent Claim 26 words
A chemiluminescence process according to claim 1, wherein said nitrogen compound is selected from the group consisting of alkyl amines, polyamines, aryl amines and benzyl amines.
Claim 4
Dependent Claim 69 words
A chemiluminescence process according to any of claims 1 and 2, wherein said nitrogen compound is selected from the group consisting of spermine, spermidine, putrescine, butylene-diamine, alkyl amines of the formula wherein X j , X 21 X 3 are the same or different and are unsubstituted or substituted aliphatic saturated hydrocarbon radicals having 1 to 8 carbon atoms, NH 3 or a salt thereof, pyridine, azoles and thiazines.
Claim 5
Dependent Claim 143 words
A chemiluminescence process according to any of claims 1 and 3, wherein the chemiluminescence precursor is an 2,3-dihydro-1,4-phthalazinedione of the formula wherein R 1 is an amino, and each of R 2 , R 3 and R 4 is unsubstituted or substituted C 1 -C 6 -alkyl or alkenyl, hydroxyl, C 1 -C 6 -alkoxy, carboxyl, or amino, or R 2 is amino and each of R 1 , R 3 and R 4 is H, unsubstituted or substituted C 1 -C 6 -alkyl or alkenyl, hydroxyl, C 1 -C 6 -alkoxy, carboxyl, or amino, or R 1 and R 2 are together and are an amino or substituted amino derivative of a benzo-group, and each of R 3 and R 4 is H, unsubstituted or substituted C 1 -C 6 -alkyl or alkenyl, hydroxyl, C 1 -C 6 -alkoxy, carboxyl, or amino.
Claim 6
Dependent Claim 109 words
A process according to any of claims 1 to 4 further comprising an enhancer selected from the group consisting of 4-chlorophenol, 4-bromophenol, 4-iodophenol, 4-bromo-2-chlorophenol, 2,4-dichlorophenol, 3,4-dichlorophenol, 4-methylphenol, 4-tert. butylphenol, ethyl 3-(4-hydroxyphenyl)propionate, 4-benzylphenol, 4-(3'-methylcrotyl)phenol, 4-styrylphenol, 4-(2'4'-dinitro- styryl)phenol, 4-hydroxylcinnamic acid, alpha-cyano-4-hydroxycinnamic acid, 4-phenylphenol, 4-(4'-hydroxyphenyl) phenol, 2-chloro-4-phenylphenol, 4-(4'-hydroxyphenyl)benzophenone, 4-(phenylazo)phenol, 4-(2'-carboxylphenylazo) phenol, 4-phenoxyphenol, 4-(4'-hydroxyphenoxy)phenol, 4-hydroxyphenyl sulphide, 4-hydroxyphenyl disulphide, naphth-2-ol, 1-bromonaphth-2-ol, 6-bromoaphth-2-o1, 1,6-dibromonaphth-2-ol and 6-hydroxybenzothiazoles of the formula wherein R is H, CN or unsubstituted or substituted thiazole, and each of X 1 , X 2 and X 3 is H, substituted or unsubstituted C 1 -C 6 -alkyl or alkenyl, hydroxyl, substituted hydroxyl, C 1 -C 6 -alkoxy, carboxyl, amino or substituted amino.
Claim 7
Dependent Claim 39 words
An assay for detecting an analyte selected from the group comprising an antibody, an antigen, a nucleic acid, an oligonuclotidide, an enzyme wherein the chemoluminiscence process of any of claims 1 to 5 is used for detecting said analyte.
Claim 8
Dependent Claim 29 words
An assay according to claim 6 wherein the analyte or the binding partner of the analyte is labeled with the chemi- luminiscence precursor, or the enhancer or an enzyme.
Claim 9
Dependent Claim 18 words
An assay for detecting a particular nucleic acid comprising the process of any of claims 1 to 5.
Claim 10
Dependent Claim 22 words
An assay according to claim 8 wherein the nucleic acid is selected from the group of ribonucleic acid, deoxy- ribonucleicacid and oligonucleotide
Claim 11
Dependent Claim 14 words
A test kit for conducting the assay of any of claims 6 to 9.

References Cited (Backward Citations)

GB2044927A Cited
EP0070687A2 Cited
SE455201B Cited
EP0087959A1 Cited
GB2125964A Cited
EP0103784A2 Cited
EP0135139A2 Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag