GB2604472A - Analyte detection method and device - Google Patents

Analyte detection method and device Download PDF

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Publication number
GB2604472A
GB2604472A GB2206029.7A GB202206029A GB2604472A GB 2604472 A GB2604472 A GB 2604472A GB 202206029 A GB202206029 A GB 202206029A GB 2604472 A GB2604472 A GB 2604472A
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GB
United Kingdom
Prior art keywords
analyte
detection device
interest
fused
peroxidase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
GB2206029.7A
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GB202206029D0 (en
Inventor
Sandhu Amandeep
Fung Karen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eze Chek Inc
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Eze Chek Inc
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Filing date
Publication date
Application filed by Eze Chek Inc filed Critical Eze Chek Inc
Publication of GB202206029D0 publication Critical patent/GB202206029D0/en
Publication of GB2604472A publication Critical patent/GB2604472A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12QMEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
    • C12Q1/00Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
    • C12Q1/26Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving oxidoreductase
    • C12Q1/28Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving oxidoreductase involving peroxidase
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/53Immunoassay; Biospecific binding assay; Materials therefor
    • G01N33/536Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase
    • G01N33/542Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase with steric inhibition or signal modification, e.g. fluorescent quenching

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Hematology (AREA)
  • Urology & Nephrology (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Microbiology (AREA)
  • Biotechnology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • Food Science & Technology (AREA)
  • Cell Biology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • Genetics & Genomics (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)

Abstract

The present disclosure relates to a novel analyte detection device and methods for detecting analytes of interest, such as allergens. In particular, the present disclosure provides a portable analyte detection device that is intended for on-site use by consumers. A fused split peroxidase-analyte binder complex is disclosed having a split peroxidase in at least two fragments, each fused to an analyte binder fragment capable of binding an analyte of interest.

Claims (19)

1. A fused split peroxidase-analyte binder complex comprising a split peroxidase, wherein the split peroxidase is at least two fragments, where each fragment is fused, optionally through a linker, to an analyte binder fragment consisting of a peptide or protein of interest which is capable of binding an analyte of interest, wherein the analyte is an allergen.
2. The fused split peroxidase-analyte binder complex of claim 1, wherein the split peroxidase is an ascorbic peroxidase.
3. The fused split peroxidase-analyte binder complex of claim 1, wherein the allergen of interest is a food allergen.
4. The fused split peroxidase-analyte binder complex of claim 3, wherein the food allergen is gluten and the analyte binder is a peptide that is capable of binding gluten.
5. An analyte detection device for detecting an analyte of interest in a sample which comprises: a fused split peroxidase-analyte binder complex comprising a split peroxidase, wherein the split peroxidase is at least two fragments, where each fragment is fused, optionally through a linker, to an analyte binder fragment consisting of a peptide or protein of interest, which is capable of binding an analyte of interest; and a substrate that is capable of undergoing catalysis by the fused split peroxidase- analyte binder complex once reconstituted in the presence of an analyte of interest, wherein the catalysis of the substrate is detectable.
6. The analyte detection device of claim 5, further comprising one or more buffers, and optional reagents.
7. The analyte detection device of claim 5, wherein the split peroxidase is an ascorbic peroxidase and the substrate is ascorbate.
8. The analyte detection device of claim 5, wherein the analyte of interest is an allergen.
9. The analyte detection device of claim 8, wherein the allergen is a food allergen.
10. The analyte detection device of claim 9, wherein the food allergen is gluten and the analyte binder is a peptide that is capable of binding gluten.
11. The analyte detection device of claim 5, wherein the catalysis of the substrate results in a colorimetric or fluorogenic signal which is detectable.
12. The analyte detection device of claim 5, wherein the device comprises: a sample collection apparatus; and a reaction vessel comprising the fused split peroxidase-analyte binder complex and the substrate.
13. The analyte detection device of claim 12, wherein the reaction vessel comprises: a casing; one or more compartments; and a container.
14. The analyte detection device of claim 13, wherein the reaction vessel contains a reaction viewing window.
15. The analyte detection device of claim 13, wherein the reaction vessel further comprises an absorbent material.
16. Use of the fused split peroxidase-analyte binder complex of any one of claims 1 - 4 for detection of an allergen in a sample.
17. The use of claim 16, wherein the sample is a food sample.
18. Use of the analyte detection device of any one of claims 5 - 14 for detection of an analyte of interest in a sample.
19. The use of claim 18, wherein the sample is a food sample.
GB2206029.7A 2019-09-27 2020-09-25 Analyte detection method and device Pending GB2604472A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962907101P 2019-09-27 2019-09-27
PCT/US2020/052902 WO2021062291A1 (en) 2019-09-27 2020-09-25 Analyte detection method and device

Publications (2)

Publication Number Publication Date
GB202206029D0 GB202206029D0 (en) 2022-06-08
GB2604472A true GB2604472A (en) 2022-09-07

Family

ID=75166861

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2206029.7A Pending GB2604472A (en) 2019-09-27 2020-09-25 Analyte detection method and device

Country Status (3)

Country Link
CA (1) CA3152627A1 (en)
GB (1) GB2604472A (en)
WO (1) WO2021062291A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023119246A1 (en) 2021-12-24 2023-06-29 Softcar Sa Automobile plant with small carbon footprint
WO2024072897A1 (en) * 2022-09-28 2024-04-04 The Regents Of The University Of Michigan Peroxidase-based reporters to detect protease activity and protein interactions

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9012170B2 (en) * 2013-01-16 2015-04-21 Massachusetts Institute Of Technology Split peroxidases and methods of use
WO2017160616A1 (en) * 2016-03-15 2017-09-21 Dots Technology Corp. Systems and methods for allergen detection
WO2017189751A1 (en) * 2016-04-26 2017-11-02 The University Of Utah Research Foundation Target-binding activated split reporter systems for analyte detection and related components and methods

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9012170B2 (en) * 2013-01-16 2015-04-21 Massachusetts Institute Of Technology Split peroxidases and methods of use
WO2017160616A1 (en) * 2016-03-15 2017-09-21 Dots Technology Corp. Systems and methods for allergen detection
WO2017189751A1 (en) * 2016-04-26 2017-11-02 The University Of Utah Research Foundation Target-binding activated split reporter systems for analyte detection and related components and methods

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LAD et al., Substrate Binding and Catalytic Mechanism in Ascorbate Peroxidase: Evidence for Two Ascorbate Binding Sites. Biochemistry, 19 November 2002, Vol. 41, No.46, pg 13774 - 3781; abstract *

Also Published As

Publication number Publication date
WO2021062291A1 (en) 2021-04-01
CA3152627A1 (en) 2021-04-01
GB202206029D0 (en) 2022-06-08

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