WO2002040999A1 - Diagnostics extrasomatiques - Google Patents
Diagnostics extrasomatiques Download PDFInfo
- Publication number
- WO2002040999A1 WO2002040999A1 PCT/JP2001/010108 JP0110108W WO0240999A1 WO 2002040999 A1 WO2002040999 A1 WO 2002040999A1 JP 0110108 W JP0110108 W JP 0110108W WO 0240999 A1 WO0240999 A1 WO 0240999A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vitro diagnostic
- diagnostic agent
- compound
- region
- reagent
- Prior art date
Links
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 73
- 150000001875 compounds Chemical class 0.000 claims abstract description 56
- 239000000126 substance Substances 0.000 claims abstract description 55
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 21
- 125000000468 ketone group Chemical group 0.000 claims abstract description 18
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims abstract 4
- 238000000338 in vitro Methods 0.000 claims description 112
- 229940039227 diagnostic agent Drugs 0.000 claims description 90
- 239000000032 diagnostic agent Substances 0.000 claims description 90
- 238000012360 testing method Methods 0.000 claims description 52
- 239000000427 antigen Substances 0.000 claims description 51
- 102000036639 antigens Human genes 0.000 claims description 51
- 108091007433 antigens Proteins 0.000 claims description 51
- 235000000346 sugar Nutrition 0.000 claims description 46
- 238000000034 method Methods 0.000 claims description 40
- 235000018102 proteins Nutrition 0.000 claims description 22
- 102000004169 proteins and genes Human genes 0.000 claims description 22
- 108090000623 proteins and genes Proteins 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 claims description 21
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 20
- 229930006000 Sucrose Natural products 0.000 claims description 20
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 20
- 239000000600 sorbitol Substances 0.000 claims description 20
- 239000005720 sucrose Substances 0.000 claims description 20
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 14
- 239000011159 matrix material Substances 0.000 claims description 14
- 238000002372 labelling Methods 0.000 claims description 13
- 125000003172 aldehyde group Chemical group 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 11
- 239000007790 solid phase Substances 0.000 claims description 11
- 150000005846 sugar alcohols Chemical class 0.000 claims description 11
- 108010071390 Serum Albumin Proteins 0.000 claims description 6
- 102000007562 Serum Albumin Human genes 0.000 claims description 6
- 238000003745 diagnosis Methods 0.000 claims description 6
- 102000004190 Enzymes Human genes 0.000 claims description 5
- 108090000790 Enzymes Proteins 0.000 claims description 5
- 239000000084 colloidal system Substances 0.000 claims description 5
- 229940079593 drug Drugs 0.000 claims description 5
- 239000003814 drug Substances 0.000 claims description 5
- 239000004816 latex Substances 0.000 claims description 5
- 229920000126 latex Polymers 0.000 claims description 5
- 239000000693 micelle Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 235000020183 skimmed milk Nutrition 0.000 claims description 5
- 239000005018 casein Substances 0.000 claims description 4
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 claims description 4
- 235000021240 caseins Nutrition 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 22
- 150000001720 carbohydrates Chemical class 0.000 abstract description 7
- 150000001719 carbohydrate derivatives Chemical class 0.000 abstract description 5
- 238000003860 storage Methods 0.000 description 58
- 239000000523 sample Substances 0.000 description 41
- 238000005259 measurement Methods 0.000 description 37
- 239000000243 solution Substances 0.000 description 27
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 18
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 description 14
- 239000012488 sample solution Substances 0.000 description 14
- 230000035945 sensitivity Effects 0.000 description 14
- 239000012528 membrane Substances 0.000 description 13
- 238000003317 immunochromatography Methods 0.000 description 11
- UNXHWFMMPAWVPI-UHFFFAOYSA-N Erythritol Natural products OCC(O)C(O)CO UNXHWFMMPAWVPI-UHFFFAOYSA-N 0.000 description 9
- -1 cyano, nitro, Amino, Substituted Amino, Carboxyl Chemical class 0.000 description 9
- 238000011161 development Methods 0.000 description 9
- 230000006866 deterioration Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 239000000020 Nitrocellulose Substances 0.000 description 7
- 238000002835 absorbance Methods 0.000 description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 7
- 229920001220 nitrocellulos Polymers 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 7
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 description 6
- 239000004386 Erythritol Substances 0.000 description 6
- 229930195725 Mannitol Natural products 0.000 description 6
- UNXHWFMMPAWVPI-ZXZARUISSA-N erythritol Chemical compound OC[C@H](O)[C@H](O)CO UNXHWFMMPAWVPI-ZXZARUISSA-N 0.000 description 6
- 235000019414 erythritol Nutrition 0.000 description 6
- 229940009714 erythritol Drugs 0.000 description 6
- 239000012634 fragment Substances 0.000 description 6
- 238000007689 inspection Methods 0.000 description 6
- 239000000594 mannitol Substances 0.000 description 6
- 235000010355 mannitol Nutrition 0.000 description 6
- FBPFZTCFMRRESA-KAZBKCHUSA-N D-altritol Chemical compound OC[C@@H](O)[C@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KAZBKCHUSA-N 0.000 description 5
- JVWLUVNSQYXYBE-UHFFFAOYSA-N Ribitol Natural products OCC(C)C(O)C(O)CO JVWLUVNSQYXYBE-UHFFFAOYSA-N 0.000 description 5
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000003018 immunoassay Methods 0.000 description 5
- HEBKCHPVOIAQTA-ZXFHETKHSA-N ribitol Chemical compound OC[C@H](O)[C@H](O)[C@H](O)CO HEBKCHPVOIAQTA-ZXFHETKHSA-N 0.000 description 5
- 239000000811 xylitol Substances 0.000 description 5
- 235000010447 xylitol Nutrition 0.000 description 5
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 description 5
- 229960002675 xylitol Drugs 0.000 description 5
- 108010074051 C-Reactive Protein Proteins 0.000 description 4
- 102100032752 C-reactive protein Human genes 0.000 description 4
- 102000012406 Carcinoembryonic Antigen Human genes 0.000 description 4
- 108010022366 Carcinoembryonic Antigen Proteins 0.000 description 4
- 102000015779 HDL Lipoproteins Human genes 0.000 description 4
- 108010010234 HDL Lipoproteins Proteins 0.000 description 4
- 241000725303 Human immunodeficiency virus Species 0.000 description 4
- 102000007330 LDL Lipoproteins Human genes 0.000 description 4
- 108010007622 LDL Lipoproteins Proteins 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 4
- 230000002163 immunogen Effects 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 210000002966 serum Anatomy 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- HEBKCHPVOIAQTA-QWWZWVQMSA-N D-arabinitol Chemical compound OC[C@@H](O)C(O)[C@H](O)CO HEBKCHPVOIAQTA-QWWZWVQMSA-N 0.000 description 3
- FBPFZTCFMRRESA-ZXXMMSQZSA-N D-iditol Chemical compound OC[C@@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-ZXXMMSQZSA-N 0.000 description 3
- UNXHWFMMPAWVPI-QWWZWVQMSA-N D-threitol Chemical compound OC[C@@H](O)[C@H](O)CO UNXHWFMMPAWVPI-QWWZWVQMSA-N 0.000 description 3
- 108700028909 Serum Amyloid A Proteins 0.000 description 3
- 102000054727 Serum Amyloid A Human genes 0.000 description 3
- 150000001413 amino acids Chemical class 0.000 description 3
- 239000007853 buffer solution Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000002405 diagnostic procedure Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 150000002772 monosaccharides Chemical class 0.000 description 3
- 150000007523 nucleic acids Chemical class 0.000 description 3
- 102000039446 nucleic acids Human genes 0.000 description 3
- 108020004707 nucleic acids Proteins 0.000 description 3
- 229920001542 oligosaccharide Polymers 0.000 description 3
- 150000002482 oligosaccharides Chemical class 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000013112 stability test Methods 0.000 description 3
- 125000001424 substituent group Chemical group 0.000 description 3
- 150000008163 sugars Chemical class 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 210000002700 urine Anatomy 0.000 description 3
- YBJHBAHKTGYVGT-ZKWXMUAHSA-N (+)-Biotin Chemical compound N1C(=O)N[C@@H]2[C@H](CCCCC(=O)O)SC[C@@H]21 YBJHBAHKTGYVGT-ZKWXMUAHSA-N 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- 102000017011 Glycated Hemoglobin A Human genes 0.000 description 2
- 108010054147 Hemoglobins Proteins 0.000 description 2
- 102000001554 Hemoglobins Human genes 0.000 description 2
- 241000711549 Hepacivirus C Species 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000007605 air drying Methods 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 235000001014 amino acid Nutrition 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 125000002837 carbocyclic group Chemical group 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 125000000392 cycloalkenyl group Chemical group 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 238000004108 freeze drying Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 150000004676 glycans Chemical class 0.000 description 2
- 108091005995 glycated hemoglobin Proteins 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 125000000623 heterocyclic group Chemical group 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920001282 polysaccharide Polymers 0.000 description 2
- 239000005017 polysaccharide Substances 0.000 description 2
- 238000011002 quantification Methods 0.000 description 2
- 150000003573 thiols Chemical class 0.000 description 2
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical group OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- MTCFGRXMJLQNBG-REOHCLBHSA-N (2S)-2-Amino-3-hydroxypropansäure Chemical compound OC[C@H](N)C(O)=O MTCFGRXMJLQNBG-REOHCLBHSA-N 0.000 description 1
- KWTSXDURSIMDCE-QMMMGPOBSA-N (S)-amphetamine Chemical compound C[C@H](N)CC1=CC=CC=C1 KWTSXDURSIMDCE-QMMMGPOBSA-N 0.000 description 1
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 1
- OWEGMIWEEQEYGQ-UHFFFAOYSA-N 100676-05-9 Natural products OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OC2C(OC(O)C(O)C2O)CO)O1 OWEGMIWEEQEYGQ-UHFFFAOYSA-N 0.000 description 1
- VOXZDWNPVJITMN-ZBRFXRBCSA-N 17β-estradiol Chemical compound OC1=CC=C2[C@H]3CC[C@](C)([C@H](CC4)O)[C@@H]4[C@@H]3CCC2=C1 VOXZDWNPVJITMN-ZBRFXRBCSA-N 0.000 description 1
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- SPSSULHKWOKEEL-UHFFFAOYSA-N 2,4,6-trinitrotoluene Chemical compound CC1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O SPSSULHKWOKEEL-UHFFFAOYSA-N 0.000 description 1
- 108010088751 Albumins Proteins 0.000 description 1
- 102000009027 Albumins Human genes 0.000 description 1
- 102100023635 Alpha-fetoprotein Human genes 0.000 description 1
- 239000004475 Arginine Substances 0.000 description 1
- 108090001008 Avidin Proteins 0.000 description 1
- 235000006810 Caesalpinia ciliata Nutrition 0.000 description 1
- 241000059739 Caesalpinia ciliata Species 0.000 description 1
- 102000011022 Chorionic Gonadotropin Human genes 0.000 description 1
- 108010062540 Chorionic Gonadotropin Proteins 0.000 description 1
- GUBGYTABKSRVRQ-CUHNMECISA-N D-Cellobiose Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)OC(O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-CUHNMECISA-N 0.000 description 1
- WQZGKKKJIJFFOK-QTVWNMPRSA-N D-mannopyranose Chemical compound OC[C@H]1OC(O)[C@@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-QTVWNMPRSA-N 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- 241000588722 Escherichia Species 0.000 description 1
- 229930091371 Fructose Natural products 0.000 description 1
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 1
- 239000005715 Fructose Substances 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 description 1
- 102000003886 Glycoproteins Human genes 0.000 description 1
- 108090000288 Glycoproteins Proteins 0.000 description 1
- SQUHHTBVTRBESD-UHFFFAOYSA-N Hexa-Ac-myo-Inositol Natural products CC(=O)OC1C(OC(C)=O)C(OC(C)=O)C(OC(C)=O)C(OC(C)=O)C1OC(C)=O SQUHHTBVTRBESD-UHFFFAOYSA-N 0.000 description 1
- 206010061598 Immunodeficiency Diseases 0.000 description 1
- 208000029462 Immunodeficiency disease Diseases 0.000 description 1
- AYRXSINWFIIFAE-SCLMCMATSA-N Isomaltose Natural products OC[C@H]1O[C@H](OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O)[C@@H](O)[C@@H](O)[C@@H]1O AYRXSINWFIIFAE-SCLMCMATSA-N 0.000 description 1
- 208000007976 Ketosis Diseases 0.000 description 1
- ODKSFYDXXFIFQN-BYPYZUCNSA-P L-argininium(2+) Chemical compound NC(=[NH2+])NCCC[C@H]([NH3+])C(O)=O ODKSFYDXXFIFQN-BYPYZUCNSA-P 0.000 description 1
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical compound OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 description 1
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 description 1
- AYFVYJQAPQTCCC-GBXIJSLDSA-N L-threonine Chemical compound C[C@@H](O)[C@H](N)C(O)=O AYFVYJQAPQTCCC-GBXIJSLDSA-N 0.000 description 1
- GUBGYTABKSRVRQ-PICCSMPSSA-N Maltose Natural products O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@@H](CO)OC(O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-PICCSMPSSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 241000607142 Salmonella Species 0.000 description 1
- MTCFGRXMJLQNBG-UHFFFAOYSA-N Serine Natural products OCC(N)C(O)=O MTCFGRXMJLQNBG-UHFFFAOYSA-N 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- 229930182558 Sterol Natural products 0.000 description 1
- AYFVYJQAPQTCCC-UHFFFAOYSA-N Threonine Natural products CC(O)C(N)C(O)=O AYFVYJQAPQTCCC-UHFFFAOYSA-N 0.000 description 1
- 239000004473 Threonine Substances 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- 241000607272 Vibrio parahaemolyticus Species 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001323 aldoses Chemical class 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000000304 alkynyl group Chemical group 0.000 description 1
- WQZGKKKJIJFFOK-PHYPRBDBSA-N alpha-D-galactose Chemical compound OC[C@H]1O[C@H](O)[C@H](O)[C@@H](O)[C@H]1O WQZGKKKJIJFFOK-PHYPRBDBSA-N 0.000 description 1
- 108010026331 alpha-Fetoproteins Proteins 0.000 description 1
- 229940025084 amphetamine Drugs 0.000 description 1
- 239000012491 analyte Substances 0.000 description 1
- 230000000840 anti-viral effect Effects 0.000 description 1
- ODKSFYDXXFIFQN-UHFFFAOYSA-N arginine Natural products OC(=O)C(N)CCCNC(N)=N ODKSFYDXXFIFQN-UHFFFAOYSA-N 0.000 description 1
- 235000009697 arginine Nutrition 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- 235000003704 aspartic acid Nutrition 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- OQFSQFPPLPISGP-UHFFFAOYSA-N beta-carboxyaspartic acid Natural products OC(=O)C(N)C(C(O)=O)C(O)=O OQFSQFPPLPISGP-UHFFFAOYSA-N 0.000 description 1
- GUBGYTABKSRVRQ-QUYVBRFLSA-N beta-maltose Chemical compound OC[C@H]1O[C@H](O[C@H]2[C@H](O)[C@@H](O)[C@H](O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@@H]1O GUBGYTABKSRVRQ-QUYVBRFLSA-N 0.000 description 1
- 238000009739 binding Methods 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 229960002685 biotin Drugs 0.000 description 1
- 235000020958 biotin Nutrition 0.000 description 1
- 239000011616 biotin Substances 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229960005309 estradiol Drugs 0.000 description 1
- 229930182833 estradiol Natural products 0.000 description 1
- 229930182830 galactose Natural products 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 235000013922 glutamic acid Nutrition 0.000 description 1
- 239000004220 glutamic acid Substances 0.000 description 1
- 150000002337 glycosamines Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000028993 immune response Effects 0.000 description 1
- 230000007813 immunodeficiency Effects 0.000 description 1
- 230000005847 immunogenicity Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- CDAISMWEOUEBRE-GPIVLXJGSA-N inositol Chemical compound O[C@H]1[C@H](O)[C@@H](O)[C@H](O)[C@H](O)[C@@H]1O CDAISMWEOUEBRE-GPIVLXJGSA-N 0.000 description 1
- 229960000367 inositol Drugs 0.000 description 1
- DLRVVLDZNNYCBX-RTPHMHGBSA-N isomaltose Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1OC[C@@H]1[C@@H](O)[C@H](O)[C@@H](O)C(O)O1 DLRVVLDZNNYCBX-RTPHMHGBSA-N 0.000 description 1
- 150000002584 ketoses Chemical class 0.000 description 1
- 238000012092 latex agglutination test Methods 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- MYWUZJCMWCOHBA-VIFPVBQESA-N methamphetamine Chemical compound CN[C@@H](C)CC1=CC=CC=C1 MYWUZJCMWCOHBA-VIFPVBQESA-N 0.000 description 1
- 229960001252 methamphetamine Drugs 0.000 description 1
- 238000004848 nephelometry Methods 0.000 description 1
- RJMUSRYZPJIFPJ-UHFFFAOYSA-N niclosamide Chemical compound OC1=CC=C(Cl)C=C1C(=O)NC1=CC=C([N+]([O-])=O)C=C1Cl RJMUSRYZPJIFPJ-UHFFFAOYSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 239000008363 phosphate buffer Substances 0.000 description 1
- 239000008055 phosphate buffer solution Substances 0.000 description 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 238000009597 pregnancy test Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003127 radioimmunoassay Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- CDAISMWEOUEBRE-UHFFFAOYSA-N scyllo-inosotol Natural products OC1C(O)C(O)C(O)C(O)C1O CDAISMWEOUEBRE-UHFFFAOYSA-N 0.000 description 1
- UQDJGEHQDNVPGU-UHFFFAOYSA-N serine phosphoethanolamine Chemical compound [NH3+]CCOP([O-])(=O)OCC([NH3+])C([O-])=O UQDJGEHQDNVPGU-UHFFFAOYSA-N 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 150000003432 sterols Chemical class 0.000 description 1
- 235000003702 sterols Nutrition 0.000 description 1
- 125000005017 substituted alkenyl group Chemical group 0.000 description 1
- 125000005415 substituted alkoxy group Chemical group 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- 125000004426 substituted alkynyl group Chemical group 0.000 description 1
- 125000005346 substituted cycloalkyl group Chemical group 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 125000000475 sulfinyl group Chemical group [*:2]S([*:1])=O 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 125000005300 thiocarboxy group Chemical group C(=S)(O)* 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
- G01N33/54393—Improving reaction conditions or stability, e.g. by coating or irradiation of surface, by reduction of non-specific binding, by promotion of specific binding
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
- G01N33/54366—Apparatus specially adapted for solid-phase testing
- G01N33/54386—Analytical elements
- G01N33/54387—Immunochromatographic test strips
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
- G01N33/54366—Apparatus specially adapted for solid-phase testing
- G01N33/54386—Analytical elements
- G01N33/54387—Immunochromatographic test strips
- G01N33/54388—Immunochromatographic test strips based on lateral flow
Definitions
- the present invention relates to an in vitro diagnostic agent and a diagnostic method used for a dry chemistry test method. More specifically, the present invention relates to an in vitro diagnostic agent and a diagnostic method that maintain a certain level of accuracy even after long-term storage.
- Field view technology
- Dry chemistry refers to the process of spotting a liquid test sample on a reagent supported in a dry state on a solid phase matrix such as a film or test strip, and the test substance in the sample is included. It is a method of measuring.
- In vitro diagnostic agents used in dry chemistry include a single-layer system in which a reagent is supported on filter paper, and a multilayer system in which a developing layer, a reaction layer, a reagent layer, and the like are stacked on a layer.
- Typical dry chemistry inspection methods include:
- the immunochromatography method is a test method utilizing an antigen-antibody reaction and capillary action.
- the immobilized antibody (or antigen) and the antibody (or antigen) sensitized by the detection reagent are each supported in a dry state on a carrier such as a membrane filter. ing. Inspection
- a test sample containing an antigen (or an antibody) is added to the in vitro diagnostic agent, developed by capillary action, and a sandwich-type antigen-antibody reaction is generated at the reaction site, and then the reaction site is colored.
- the antigen (or antibody) in the test sample is identified, its presence or absence, or the amount of the antigen (or antibody) is measured.
- As the form of the antigen-antibody reaction in addition to the sandwich-type reaction, there is also an immunochromatography method utilizing a competitive-type reaction, but the device structure and the inspection method are the same.
- the immunochromatographic device based on the principle of the immunochromatography method is mainly used for qualitative determination of positive or negative depending on the presence or absence of color development at the reaction site, as represented by a pregnancy test drug. ing.
- the advantages of the test method using the immunochromatography method include the simplicity of operation, quick determination, and low price in addition to the advantages of dry chemistry described above.
- the testing method using immunochromatography is applicable not only to clinical tests, but also to point-of-care (POC), which has recently attracted attention.
- POC point-of-care
- the Immunoku Mato device used for qualitative determination can be stored at room temperature, and the handling of the device requires specialized knowledge of reagents such as antigens, immobilized antibodies, and labeled antibodies carried by the device. It is a device that does not require knowledge or technology and is easy to handle for users.
- this immunochromatography method has begun to be used in semi-quantitative or quantitative determination by using the measurement based on the intensity of color development at a reaction site.
- an object of the present invention is to provide an in vitro diagnostic agent having excellent storage stability even in quantitative measurement.
- the present invention provides, in order to solve the above-mentioned problems, an in vitro diagnostic agent used for measuring a test substance in a sample, wherein the reagent specifically reacts with the test substance; For example, a sugar or sugar derivative) is provided.
- the reagent specifically reacts with the test substance; For example, a sugar or sugar derivative
- the in-vitro diagnostic agent according to item 1 wherein two or more reagents are present, and the two or more reagents include a first antibody or antigen or a derivative thereof and a second antibody or antigen or a derivative thereof. .
- the reagent is labeled with a colloid particle, a latex particle, a dye, a micelle, an enzyme, a fluorescent substance, or a phosphorescent substance.
- the support includes a labeling region, a determination region, and a sample introduction region,
- the labeled region includes a first antibody or antigen that binds to the test substance; 2) the determination region includes a second antibody or antigen that binds to the test substance; and Arranged in fluid communication with the area, 3) The in-vitro diagnostic agent according to item 12, wherein the sample introduction region is arranged so as to be in fluid communication with the label region.
- a method for producing an in vitro diagnostic agent for measuring a test substance in a sample comprising:
- a method for detecting a test substance in a sample comprising:
- a process comprising:
- FIG. 1 is a perspective view showing an immunochromatographic device according to an embodiment of the present invention.
- FIG. 2 is a graph showing storage stability at 4 ° C. of the immunochromatodepises according to the embodiment of the present invention.
- FIG. 3 is a graph showing the storage stability at 4 ° C. of the immunochromatographic device in the comparative example.
- FIG. 4 is a graph showing the storage stability at 25 ° C. of the immunochromatographic device according to the embodiment of the present invention.
- FIG. 5 is a graph showing the storage stability of an immunochromatographic device in a comparative example at 25 ° C.
- FIG. 6 is a graph showing the storage stability at 40 ° C. of the immunochromatography depis according to the embodiment of the present invention.
- FIG. 7 is a graph showing the storage stability at 40 ° C. of the immunochromatographic device in the comparative example.
- Fig. 8 is a graph showing the deterioration of color intensity (%) at various degrees of sucrose storage at 4 ° (1 month storage.
- Fig. 9 shows the immunochromatographic device of Example 3 at 25 ° C.
- Fig. 10 is a diagram showing the storage stability of the sensitivity of Fig. 10.
- Fig. 10 is a diagram showing the storage stability of the accuracy (CV value) at 25 ° C of the immunochromatographic device in Example 3. It is a figure which shows the storage stability of the immunochromatographic device in a comparative example at 25 ° C.
- Figure 12 shows the 'accuracy (CV value) of the storage stability of the immunochromatographic device in a comparative example at 25 ° C.
- FIG. 13 is a diagram represented by a stability index indicating the rate of deterioration based on the measurement value on the 14th day in the example (Fig. 9) according to the present invention.
- the rate of deterioration is shown based on the measured value on day 14 Is a view expressed by stability index.
- in vitro diagnostic agent refers to a substance that can be monitored for at least one particular biological parameter outside the body of a subject.
- the in-vitro diagnostic agent may be in any form depending on the situation, and may be a composition or a device.
- hydrophilic material refers to a material containing an atomic group having a strong affinity for water molecules. In the present specification, the hydrophilic material is required not to break the three-dimensional structure of the protein.
- hydrophilic materials include, for example, Rigid Side chains of amino acids such as amino acids, arginine, glutamic acid, and aspartic acid; phosphate groups of nucleic acids; amino acid side chains of serine and threonine; and hydroxyl groups of sugars or sugar derivatives.
- the hydrophilic material includes a compound comprising at least one hydroxyl group and at least one aldehyde or ketone group. Therefore, in a preferred embodiment, the present invention provides an in vitro diagnostic agent for measuring a test substance in a sample. This in vitro diagnostic is
- the hydrophilic material can be a sugar or sugar derivative.
- sugar refers to a polyhydroxyaldehyde or a polyhydric xyloketone containing at least one hydroxyl group and at least one aldehyde group or ketone group. In the present specification, sugar is also called carbohydrate, and both are used interchangeably.
- the saccharide used in the in vitro diagnostic agent of the present invention may be any saccharide that can be dissolved in a liquid. For example, monosaccharides such as glucose, mannose, galactose, and fructose, and maltose, isomaltose, cellobiose, lac! And oligosaccharides such as sucrose and sucrose.
- a monosaccharide or a polysaccharide in which an oligosaccharide is chemically bonded may be used.
- Sugars have stereoisomers, but all stereoisomers are applicable. Of these, sucrose is preferred.
- the sugar derivative refers to a product obtained by replacing one substituent of a sugar with another substituent, and a modified sugar obtained by a redox reaction of the sugar.
- examples of the substituent include alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, alkenyl, substituted alkenyl, cycloalkenyl, substituted cycloalkenyl, alkynyl, substituted alkynyl, alkoxy, Substituted alkoxy, carbocyclic group, substituted carbocyclic group, heterocyclic group, substituted heterocyclic group, halogen, hydroxy, substituted hydroxy, thiol, substituted thiol, cyano, nitro, Amino, Substituted Amino, Carboxyl, Substituted Carboxyl, Acyl, Carboxyl Substituted, Thiocarboxy, Carboxylated Substituted Thiocalpoxy, Amide, Substituted Amide, Carboxyl Substituted, Carboxyl Substituted Luponyl, substituted sulfonyl
- the sugar derivative used in the in vitro diagnostic agent of the present invention is not limited as long as it can be dissolved in a liquid.
- a monosaccharide, oligosaccharide or polysaccharide modified to a biological component such as protein, lipid or nucleic acid, sugar alcohol , Inositol, peronic acid, ascorbic acid, amino sugars, sugar phosphates and natural glycoproteins.
- sugar alcohols are preferred.
- Sugars or sugar derivatives have hygroscopicity and low drying properties, and are excellent in keeping the water content with temperature change. Therefore, by doing so, the humidity in the in vitro diagnostic drug is kept at an appropriate level, so that an in vitro diagnostic drug having storage stability even for highly accurate quantitative measurement can be obtained.
- Sugar alcohols that can be used in the in vitro diagnostic agent of the present invention include aldose or May be a linear polyhydric alcohol obtained by reduction of a carbonyl group of ketose or a stereoisomer thereof, such as glycerol, erythritol, tritol, ribitol, arabinitol, xylitol, aritol, Sorbitol, mannitol, iditol, daritol, and talitol, or stereoisomers of glycerol, erythritol, threitol, ribitol, arabinitol, xylitol, aritol, sorbitol, mannitol, idiitol, daritol, and talitol Can be Further, two or more of the above-mentioned chain-like polyvalent alcohols or stereoisomers thereof may be chemically bonded, for example, glycerol
- talcitol or sterol isomers of glycerol, erythritol, threitol, ribitol, arabinitol, xylitol, aritol, sorbitol, mannitol, iditol, darcitol, or talitol
- a naturally occurring sugar or a sugar that is not naturally occurring and artificially synthesized, or a naturally occurring sugar or a stereoisomer of a sugar that is not naturally occurring and artificially synthesized. It may be partially or wholly linked via an alcohol group.
- the sugar alcohol is preferably sorbitol.
- the material may include a sugar alcohol or a derivative thereof. More preferably, the material may include sucrose or sorbitol. The material may also preferably include sucrose and sorbitol.
- the material can be greater than about 1 w / v%. More preferably, the material may be present at a concentration of about 3% w / v or higher. More preferably, the material can be present at a concentration of about 3% w / v to about 1% OwZv.
- the concentration of the above materials is not limited to these ranges.
- the lower limit is about 1 wZv%, about 1.5 w / v%, about 2 wZv%, about 2.5 w / v% , About 3wZ V%, about 4wZv%, about 5wZv%, about 6w / V%, about 7wZv%, about 8wZv%, about 9w / v%, about 10w / v%, about 15wZv%, etc.
- the upper limit of the content concentration of the above materials is, for example, about 1.5 wZv%, about 2 wZv%, about 2.5 wZv%, about 3 w, v%, about 4 wZv%, about 5 wZv%, about 6 wZv%, about 7 wZv%. , About 8 w / v%, about 9 wZv%, about 10 wZv%, about 12.5 wZv%, about 15 wZv%, about 17,5 w / v%, about 20 w / v%, about 30 wZv%, about 40 wZv %, About 50 wZv%, and the like, but are not limited thereto.
- the range may be any combination of the above lower and upper limits.
- the reagent that can be used in the present invention may be any reagent that specifically reacts with a test substance, and examples thereof include an antibody, an antigen, avidin, biotin, and a nucleic acid. Of these, antigens or antibodies are preferred. Therefore, in another aspect, the reagent used in the present invention may be an antibody or an antigen or a derivative thereof. “Specifically react” means that the target object interacts more strongly than other objects.
- the term “antigen” refers to any substance that elicits antibodies, and examples of such antigens include haptens, proteins, bacteria, viruses, and antiviral antibodies. Body and the like.
- examples of the octene include low molecular compounds such as dioxin, amphetamine, methamphetamine, and estradiol.
- Proteins include hemoglobin, albumin, hemoglobin Ale (glycated hemoglobin), HDL (high density lipoprotein), LDL (low density lipoprotein), HCV antibody (hepatitis C virus antibody), HIV antibody (human immunodeficiency) Viral antibodies), CEA (carcinoembryonic antigen), AFP (a-fetoprotein), CRP (C-reactive protein), SAA (serum amyloid A), hcG (human chorionic gonadotropin) and the like.
- the bacterium examples include bacteria belonging to the genus Escherichia, Salmonella, Staphylococcus aureus, and Vibrio parahaemolyticus. Viruses include HIV, HBs and the like.
- the “antibody” includes those raised against the above antigen.
- antibodies are intended to include whole antibodies as well as immunogenic derivatives and fragments thereof.
- An immunogenic fragment of an antibody refers to any fragment of an antibody having immunogenicity.
- an immunogenic fragment of an antibody for example,? And variable regions such as (1) or (ab) 2 ', but are not limited thereto.
- an immunogenic fragment of an antibody can be any fragment as long as it can elicit an immune response.
- the in vitro diagnostic agent of the present invention may further comprise a serum albumin, casein, a surfactant, or skim milk.
- the reagent in the in vitro diagnostic agent of the present invention, is present in two or more.
- the two or more reagents can include a first antibody or antigen or derivative thereof, and a second antibody or antigen or derivative thereof.
- the reagent may be labeled with colloid particles, latex particles, pigments, micelles, enzymes, fluorescent substances or phosphorescent substances.
- the reagent and the material can be supported on a support.
- the reagent and the compound can be carried in separate regions on the support.
- the support can be a solid matrix. This matrix may be layered (solid matrix).
- the support may preferably include a porous material.
- the reagent and the saccharide or saccharide derivative are preferably supported on a solid-phase matrix.
- the solid phase matrix can be any material that can absorb, retain, and expand sample liquids and can physically or chemically adsorb biological materials, such as glass fiber filter paper and membrane filter. Evening and the like.
- the in vitro diagnostic agent of the present invention comprises, as a solid phase matrix, a sample introduction region, a labeled region containing a first antibody or antigen that binds to an antigen or antibody as a test substance, and the antigen or antibody as the test substance
- the determination region is provided, and the sample introduction region, the label region, or the determination region contains a sugar or a sugar derivative, and is a test substance in a sample solution based on a specific antigen-antibody binding reaction. It is characterized by measuring an antigen or an antibody.
- the support comprises a labeling region, a determination region, and a sample introduction region
- the labeled region contains a first antibody or antigen that binds to the test substance
- the determination region includes a second antibody or antigen that binds to the test substance, and is arranged to be in fluid communication with the label region;
- the in vitro diagnostic agent of the present invention can take the form of an in vitro diagnostic device, but is not limited thereto.
- the in vitro diagnostic agent may take the form of a composition.
- the labeled region contains a sugar or a sugar derivative. In this way, the non-specific adsorption of the first antibody (or antigen) to the solid phase matrix is reduced, and the elution of the first antibody (or antigen) becomes uniform over time, so that more preservation is achieved. A highly stable in vitro diagnostic agent can be obtained.
- the first antibody may be labeled with colloid particles, latex particles, dyes or micelles, and preferably contains a sugar or sugar derivative at least in the labeled region.
- the material for the sample introduction region may be any material that can develop the sample solution at an appropriate speed, and examples include nitrocellulose and glass filter paper.
- the material of the labeling region and the determination region may be any material that can carry the first and second antibodies (or antigens) and can develop the sample solution at an appropriate speed. Examples include nitrocellulose and glass filter paper.
- an in vitro diagnostic agent required for measuring an analyte with an automatic analyzer a liquid reagent in a container such as a cuvette or an eppen tube, or sugar or It is a dried product containing a sugar derivative.
- a liquid reagent in a container such as a cuvette or an eppen tube, or sugar or It is a dried product containing a sugar derivative.
- a wide variety of uses can be expected.For example, after injecting and dissolving a buffer solution etc. in the container containing the lyophilized product, transfer it to the cuvette of the analytical instrument for measurement. Can be. Alternatively, by placing the container containing the solution directly on the analytical instrument, the instrument can automatically inject the buffer solution etc. and perform the measurement immediately.
- an immunoserum test for example, an immunoturbidimetric test, a nephelometry, a latex agglutination test, a radioimmunoassay, an enzyme immunoassay, a fluorescence immunoassay, a chemiluminescence immunoassay may be used.
- the compound can be included in at least one region selected from the group consisting of the labeled region and the determination region. Preferably, the compound can be included at least in the labeled region, but may be entirely included in the region.
- the present invention provides a method for producing an in vitro diagnostic agent for measuring a test substance in a sample.
- the method is:
- the in vitro diagnostic agent of the present invention is prepared by mixing a sugar or a sugar derivative with a solution of a reagent that specifically reacts with a test substance, and then air-drying or freeze-drying the solution. can do.
- a reagent and a sugar or a sugar derivative are supported on a solid-phase matrix
- a sugar or sugar derivative is mixed with a solution of a reagent that specifically reacts with a test substance, and the solution is impregnated on the solid-phase matrix.
- immobilization it can be prepared by air drying or freeze drying.
- impregnation refers to supporting in an elutable state
- immobilization refers to supporting in a non-elutable state.
- the in vitro diagnostic agent of the present invention is obtained by mixing a solution containing the first antibody (or antigen) with a saccharide or saccharide derivative, impregnating the solution with the labeled region, or using the solution containing the first antibody (or antigen) or the second antibody (or Antigen) is mixed with a saccharide or saccharide derivative, the solution is immobilized in the determination region, and then air-dried or freeze-dried.
- the present invention provides a method for detecting a test substance in a sample.
- a process comprising:
- the present invention relates to the use of the in vitro diagnostic agent of the present invention for measuring a test substance in a sample.
- components contained in blood for example, HbAlc (glycated hemoglobin), HDL (high-density lipoprotein), LDL (low-density lipoprotein), HCV antibody (Hepatitis C virus antibody), HIV antibody (human immunodeficiency virus antibody), CEA (carcinoembryonic antigen), A
- FP ⁇ -fetoprotein
- CRP C-reactive protein
- SAA serum amyloid ⁇
- the effects provided by the present invention include that diagnosis and detection can be performed with high accuracy even after long-term storage (for example, one month).
- a “stability index” is used as an index for evaluating accuracy after a certain period.
- the term “stability index” refers to a value obtained by using the sensitivity on the 14th day after the production of an in vitro diagnostic agent as a reference (0) and comparing the sensitivity after that with the reference. Thus, if the sensitivity on day 14 is 110 and the sensitivity on day 30 is 20, the stability index is +30. The stability index should be close to zero. On the other hand, it is also preferable that the fluctuation at each measurement time point is small, that is, the change with time is small. In the present invention, the numerical value of the stability index can be preferably within ⁇ 20. More preferably, the stability index may be within ⁇ 10.
- the stability index preferably has a difference between measurement points of 20 or less. More preferably, the difference between the points may be within 10.
- the important thing about the measured data is the prediction of the next measurement result.
- the stability index is outside the range of soil 20 and the absolute value of the stability index tends to increase over time, this is the result of subsequent measurements.
- FIG. 1 shows the structure of the immunochromatographic device according to the first embodiment.
- Tris (hydroxymethyl) aminomethane hereinafter referred to as Tris) _HC containing 1% skim milk.
- colloidal gold was prepared by quickly adding 4 ml of a 1% citric acid solution to 200 ml of a 0.01% chloroauric acid solution in reflux. After cooling the colloidal gold solution at room temperature, the pH was adjusted to 9.0 by adding a 0.2 M potassium carbonate solution. Subsequently, a PBS buffer solution 5001 containing 5 mg Zm 1 of anti-hCG-H antibody as the first antibody was added and stirred for several minutes. Further, a 10% serum albumin (BSA) solution (hereinafter referred to as BSA) was added. pH 9.0) was added at 2 Oml.
- BSA serum albumin
- the prepared colloidal gold sensitized anti-hCG-H antibody solution was applied to a part of the nitrocellulose membrane at a position distant from the judgment area 12 using a solution ejection device, and dried to form Then, a labeled region 11 was prepared.
- the area on the membrane where the colloidal gold-sensitized anti-hCG-H antibody solution was not applied was designated as sample introduction area 10.
- the above-mentioned nitrocellulose membrane was stuck on a substrate 13 made of 0.5 mm-thick white PET, and cut into strips of 5 mm ⁇ 5 Omm to produce an imunokuto mat device.
- the concentrations of 100 U / 1, 00 UZ1 and 10000 UZ1 were adjusted by adding known concentrations of hCG solution to human urine.
- Quantitative measurement of hCG concentration in the sample solution was performed for the immunochromatographic device of Example 1 immediately after the production of the immunochromatographic device, and on days 3, 14, 28, and 62 after the production.
- the storage temperature of the immunochromatography device was 4 ° C, 25 ° C and 40 ° C.
- 401 U of 100 U / 1, 1000 U / 1 or 10,000 UZ1 of hCG solution was added to the sample introduction region 10 of the manufactured immunochromatographic device 10 and developed on the membrane.
- Fig. 2 shows the storage stability of the immunochromatographic device in Example 1 at 4 ° C
- Fig. 3 shows the storage stability of the immunochromatographic device in Comparative Example 1 at 4 ° C
- Fig. 4 shows the storage stability of the immunochromatographic device at 25 ° C in Example 1
- Fig. 5 shows the storage stability of the immunochromatographic device at 25 ° C in Comparative Example 1.
- Fig. 6 shows the storage stability of the immunochromatographic device in Example 1 at 40 ° C
- FIG. 7 shows the immunochromatographic device in Comparative Example 1 at 40 ° C.
- FIG. 2 shows a diagram showing storage stability.
- the horizontal axis represents the number of storage days from the time the immunochromatographic device was manufactured until measurement
- the vertical axis the hCG concentration-reflection absorbance calibration curve created by measurement immediately after fabrication. Is the sensitivity difference that represents the difference between the hCG concentration determined from the reflected absorbance in each measurement and the actual hCG concentration in the sample solution
- the closed circle represents the data for the sample solution with a concentration of 100 UZ1.
- open circles represent data for a sample solution with a concentration of 1000 U / 1
- triangles represent data for a sample solution with a concentration of 1000 U / 1.
- the sensitivity of the immunochromatographic device of Comparative Example 1 tends to decrease as the storage days increase, and this tendency becomes more pronounced as the storage temperature increases.
- the sensitivity changes from day 14 to day 14 at any storage temperature, but from day 14 onwards, it goes to day 62. Almost stable sensitivity was obtained. Since the storage stability of the immunochromatographic device of Example 1 was maintained for about one month from the 14th day in the accelerated storage stability test at 40 ° C shown in Fig. 6, the storage stability at room temperature was maintained. In terms of sex, about 1 to: L. 5 years of storage stability can be guaranteed. In addition, the accuracy of fluctuations in CV values can be guaranteed.
- sucrose was contained in the gold-colloid-sensitized anti-hCG_antibody solution at 0, 1, 3, 5, 7, and 10%, respectively. Except for the above, the production of the immunochromatographic device is performed in the same manner as in Example 1. (Preparation of sample solution)
- hCG solutions of 0.01, 0.1, lmg / ⁇ 1 were prepared. (Quantitative measurement of hCG concentration)
- the sucrose concentration was determined. Based on the results of Example 1 (Figs. 2 to 7), if storage sensitivity can be suppressed within about 20% at 40 ° C for 1 month, storage stability at 4 ° C and 25 ° C for 1.5 years can be obtained. Sex can be guaranteed.
- 40 ⁇ l of 0.01, 0.1, lmg 1 hCG solution was added to the sample introduction area 10 of the prepared immunochromatographic device and spread on the membrane.
- FIG. 8 is a graph showing the deterioration rate after storage at 40 ° C. for one month based on the color intensity immediately after the production of the immunochromatodepises in Example 2. Based on the above results, in devices containing a sucrose concentration of 3% or more, the degradation of color intensity can be suppressed to around 20% regardless of storage under severe conditions of 40 ° C. . In this example, since the sample is serum, it has some viscosity, which is expected to have an adverse effect on the accuracy of quantitative measurement. desirable. (Example 3) Implementation of storage stability test
- Example 3 The immunochromatographic depiice of Example 3 was prepared in the same manner as in Example 2 except that 5% of sucrose was contained in the step of preparing a colloidal gold-sensitized anti-hCG-anti body fluid and that no sucrose was used. In the way. The thus-prepared labeling region containing no sucrose was used as a comparative example.
- Quantitative measurement of the hCG concentration in the sample was performed immediately after the preparation of the immunochromatographic device of Example 3 and after storage for 3, 7, 14, 25, 52, and 80 days after preparation. Immun chromatography devices were performed immediately after fabrication and after storage for 3, 7, 14, 26, and 54 days after fabrication. The storage temperature was 25. At the time of measurement, 0.01, 0.1, and lmg / d1 of hCG solution 401 were added to the sample introduction region 10 of the fabricated immunochromatographic device, and the mixture was spread on the membrane. Quantification of the hCG concentration in the sample solution was performed by measuring the color development after 5 minutes in the determination region 12 by measuring the reflection absorbance at 520 nm using a reflection absorption spectrophotometer (Shimadzu Corporation: CS 9300).
- FIG. 9 shows storage stability.
- Figure 11 shows a comparative example.
- Fig. 12 shows the storage stability at 25 ° C.
- Fig. 12 shows the accuracy (CV value) of the storage stability at 25 ° C of the immunochromatographic device in the comparative example.
- the horizontal axis indicates the number of storage days from the production of the immunochromatodepis until the measurement, and the vertical axis indicates the ratio of deterioration to the color intensity immediately after the production.
- the horizontal axis shows the number of storage days until measurement after the preparation of the immunochromatographic device, and the vertical axis shows the CV value as an index of quantitative accuracy.
- FIGS. 9 shows storage stability.
- Figure 11 shows a comparative example.
- Fig. 12 shows the storage stability at 25 ° C.
- Fig. 12 shows the accuracy (CV value) of the storage stability at 25
- FIG. 13 and 14 are diagrams represented by stability indices indicating the rates of deterioration based on the measured values on the 14th day of Example 3 and Comparative Example, respectively.
- the sensitivity of the immunochromatographic device of the comparative example tends to decrease as the storage days increase.
- the sensitivity was deteriorated until the 14th day from the production, but almost stable sensitivity was obtained after the 14th day.
- the CV value also shows a deterioration in the performance in the comparative example, but in the case of the immunochromatography device of Example 3, it is within about 5%, which indicates that the quantitative accuracy is guaranteed.
- Example 3 Fig.
- the stability index is maintained within ⁇ 20, and at the three time points (25, 52, 80 days). It can be said that the measurement results have little variation in the mutual sensitivity, and there is a high possibility that no degradation will occur in subsequent measurements.
- the stability index has many concentrations that are kept within ⁇ 20, the results as of the 26th and 54th days show fluctuations of up to 70% between each other. (Decrease) (0.0 lmg / ml) is observed, and the same fluctuation (decrease) tendency is observed at other concentrations. Therefore, it is expected that the stability index will be in an undesirable range in subsequent measurements. As described above, it has been demonstrated that the in vitro diagnostic agent of the present invention gives accurate results for a very long time. Industrial availability.
- the present invention storage stability can be improved even when performing quantitative measurement by including a sugar or a sugar derivative in an in vitro diagnostic agent.
- the in vitro diagnostic agent according to the present invention is highly reliable, powerful, and easy to handle for the user, and can be used not only in clinical tests but also in POC.
Landscapes
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Hematology (AREA)
- Urology & Nephrology (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Microbiology (AREA)
- Analytical Chemistry (AREA)
- Biotechnology (AREA)
- Pathology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Cell Biology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020027009343A KR20020070493A (ko) | 2000-11-20 | 2001-11-19 | 체외 진단약 |
JP2002542876A JPWO2002040999A1 (ja) | 2000-11-20 | 2001-11-19 | 体外診断薬 |
EP01982857A EP1288663A4 (en) | 2000-11-20 | 2001-11-19 | EXTRASOMATIC DIAGNOSTICS |
CA002397557A CA2397557C (en) | 2000-11-20 | 2001-11-19 | Extrasomatic diagnostics |
US11/469,042 US20070105170A1 (en) | 2000-11-20 | 2006-08-31 | Extracorporeal diagnostic |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000-352210 | 2000-11-20 | ||
JP2000352210 | 2000-11-20 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/469,042 Division US20070105170A1 (en) | 2000-11-20 | 2006-08-31 | Extracorporeal diagnostic |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002040999A1 true WO2002040999A1 (fr) | 2002-05-23 |
Family
ID=18825141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/010108 WO2002040999A1 (fr) | 2000-11-20 | 2001-11-19 | Diagnostics extrasomatiques |
Country Status (7)
Country | Link |
---|---|
US (2) | US20030092093A1 (ja) |
EP (1) | EP1288663A4 (ja) |
JP (1) | JPWO2002040999A1 (ja) |
KR (1) | KR20020070493A (ja) |
CN (1) | CN1187617C (ja) |
CA (1) | CA2397557C (ja) |
WO (1) | WO2002040999A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006080438A1 (ja) * | 2005-01-28 | 2006-08-03 | Mochida Pharmaceutical Co., Ltd. | イムノクロマト用試験具およびこれを用いた半定量方法 |
WO2010116979A1 (ja) * | 2009-04-09 | 2010-10-14 | アークレイ株式会社 | 検体分析用具、検体分析用具の製造方法および展開部材の液体浸透性低下抑制方法 |
WO2011111764A1 (ja) * | 2010-03-12 | 2011-09-15 | コニカミノルタホールディングス株式会社 | 保存センサ基板,乾燥センサ基板およびそれらの製造方法 |
WO2017126593A1 (ja) | 2016-01-22 | 2017-07-27 | 田中貴金属工業株式会社 | クロマトグラフ媒体 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005020014A2 (en) * | 2003-08-19 | 2005-03-03 | Atlantic City Coin & Slot Service Company, Inc. | Method for awarding prizes |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10500209A (ja) * | 1994-05-10 | 1998-01-06 | バイオコントロール システムズ,インコーポレイティド | 診断試薬と微生物の間の反応性の制御のための組成物および方法 |
JPH11153600A (ja) * | 1997-11-21 | 1999-06-08 | Fujirebio Inc | 免疫測定用試験片及び該試験片を用いる測定法 |
JP2000055919A (ja) * | 1998-08-03 | 2000-02-25 | Nitto Denko Corp | 被検物質の検査方法および検査試薬 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2016687B (en) * | 1978-03-20 | 1982-09-08 | Abbott Lab | Sugar coated reagents for solid phase immunoassay |
US4844966A (en) * | 1982-10-13 | 1989-07-04 | Minnesota Mining And Manufacturing Company | Assaying total IgE levels with fluorogenic enzyme labeled antibody |
WO1986002004A1 (en) * | 1984-10-04 | 1986-04-10 | Preco, Inc. | Stabilization of biological substances |
GB8500698D0 (en) * | 1985-01-11 | 1985-02-13 | Unilever Plc | Preparation of reagents |
CA1303983C (en) * | 1987-03-27 | 1992-06-23 | Robert W. Rosenstein | Solid phase assay |
AU609332B2 (en) * | 1988-11-09 | 1991-04-26 | Biotrack, Inc. | Method and composition of stabilizing and solubilizing latex reagents |
GB9419001D0 (en) * | 1994-09-21 | 1994-11-09 | Applied Research Systems | Assay method |
-
2001
- 2001-11-19 CA CA002397557A patent/CA2397557C/en not_active Expired - Fee Related
- 2001-11-19 KR KR1020027009343A patent/KR20020070493A/ko not_active Application Discontinuation
- 2001-11-19 WO PCT/JP2001/010108 patent/WO2002040999A1/ja not_active Application Discontinuation
- 2001-11-19 US US10/181,587 patent/US20030092093A1/en not_active Abandoned
- 2001-11-19 JP JP2002542876A patent/JPWO2002040999A1/ja active Pending
- 2001-11-19 CN CNB018039820A patent/CN1187617C/zh not_active Expired - Fee Related
- 2001-11-19 EP EP01982857A patent/EP1288663A4/en not_active Withdrawn
-
2006
- 2006-08-31 US US11/469,042 patent/US20070105170A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10500209A (ja) * | 1994-05-10 | 1998-01-06 | バイオコントロール システムズ,インコーポレイティド | 診断試薬と微生物の間の反応性の制御のための組成物および方法 |
JPH11153600A (ja) * | 1997-11-21 | 1999-06-08 | Fujirebio Inc | 免疫測定用試験片及び該試験片を用いる測定法 |
JP2000055919A (ja) * | 1998-08-03 | 2000-02-25 | Nitto Denko Corp | 被検物質の検査方法および検査試薬 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1288663A4 * |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006080438A1 (ja) * | 2005-01-28 | 2006-08-03 | Mochida Pharmaceutical Co., Ltd. | イムノクロマト用試験具およびこれを用いた半定量方法 |
JP4988546B2 (ja) * | 2005-01-28 | 2012-08-01 | 持田製薬株式会社 | イムノクロマト用試験具およびこれを用いた半定量方法 |
WO2010116979A1 (ja) * | 2009-04-09 | 2010-10-14 | アークレイ株式会社 | 検体分析用具、検体分析用具の製造方法および展開部材の液体浸透性低下抑制方法 |
JPWO2010116979A1 (ja) * | 2009-04-09 | 2012-10-18 | アークレイ株式会社 | 検体分析用具、検体分析用具の製造方法および展開部材の液体浸透性低下抑制方法 |
JP5793075B2 (ja) * | 2009-04-09 | 2015-10-14 | アークレイ株式会社 | 検体分析用具、検体分析用具の製造方法および展開部材の液体浸透性低下抑制方法 |
US9903864B2 (en) | 2009-04-09 | 2018-02-27 | Arkray, Inc. | Sample analysis tool, method for producing sample analysis tool, and method for inhibiting decrease in liquid permeability of development member |
WO2011111764A1 (ja) * | 2010-03-12 | 2011-09-15 | コニカミノルタホールディングス株式会社 | 保存センサ基板,乾燥センサ基板およびそれらの製造方法 |
JP5929752B2 (ja) * | 2010-03-12 | 2016-06-08 | コニカミノルタ株式会社 | 保存センサ基板,並びに、保存センサ基板および乾燥センサ基板の製造方法 |
WO2017126593A1 (ja) | 2016-01-22 | 2017-07-27 | 田中貴金属工業株式会社 | クロマトグラフ媒体 |
KR20180088479A (ko) | 2016-01-22 | 2018-08-03 | 다나카 기킨조쿠 고교 가부시키가이샤 | 크로마토그래프 매체 |
Also Published As
Publication number | Publication date |
---|---|
EP1288663A1 (en) | 2003-03-05 |
US20030092093A1 (en) | 2003-05-15 |
KR20020070493A (ko) | 2002-09-09 |
CA2397557A1 (en) | 2002-05-23 |
CN1187617C (zh) | 2005-02-02 |
CN1395685A (zh) | 2003-02-05 |
JPWO2002040999A1 (ja) | 2004-03-25 |
CA2397557C (en) | 2006-02-07 |
EP1288663A4 (en) | 2007-11-21 |
US20070105170A1 (en) | 2007-05-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8093057B2 (en) | System for quantitative measurement of glycohemoglobin and method for measuring glycohemoglobin | |
US7112451B2 (en) | Biosensor | |
CA2797838C (en) | Reagents for reducing leukocyte interference in immunoassays | |
JP4383860B2 (ja) | バイオセンサ、及び測定方法 | |
KR19990029688A (ko) | 면역 크로마토그라피장치 | |
JPH04351962A (ja) | 特異結合分析方法および特異結合分析装置 | |
US20100317126A1 (en) | Agglutination assay method in porous medium layer | |
JP2010156576A (ja) | クロマトグラフ媒体 | |
JP7356204B2 (ja) | イムノクロマト用試験片 | |
US20070105170A1 (en) | Extracorporeal diagnostic | |
JP3511872B2 (ja) | 免疫測定用試験片及び該試験片を用いる測定法 | |
US20040161857A1 (en) | Test strip for chromatography and process for producing the same | |
JP4437211B2 (ja) | 免疫クロマトグラフィーを用いた測定方法およびそれに用いる検体分析用具 | |
US20030049868A1 (en) | Agglutination assay method in binder medium | |
JP5562508B1 (ja) | 無希釈系イムノクロマトグラフ法試薬において希釈試料を測定するための添加物 | |
JP6841679B2 (ja) | イムノクロマトグラフ法 | |
CN112698027A (zh) | 一种半抗原免疫层析检测试剂 | |
JP2001272405A (ja) | 検査キット | |
JPH11153601A (ja) | 免疫クロマトグラフィー装置 | |
JP2020020687A (ja) | イムノクロマト用展開液 | |
JP2005257468A (ja) | バイオセンサ | |
JP5265423B2 (ja) | クロマトグラフ方法 | |
JP2009294116A (ja) | バイオセンサ | |
JP2010091353A (ja) | バイオセンサおよびバイオセンサ用不溶性粒状マーカー | |
JP2003254975A (ja) | 免疫測定方法、それに用いるキット及びデバイス |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CA CN JP KR US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR |
|
ENP | Entry into the national phase |
Ref document number: 2002 542876 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2397557 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2001982857 Country of ref document: EP Ref document number: 1020027009343 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 018039820 Country of ref document: CN |
|
WWP | Wipo information: published in national office |
Ref document number: 1020027009343 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10181587 Country of ref document: US |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWP | Wipo information: published in national office |
Ref document number: 2001982857 Country of ref document: EP |
|
WWR | Wipo information: refused in national office |
Ref document number: 1020027009343 Country of ref document: KR |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2001982857 Country of ref document: EP |