Phosphorylcholine Polymer Sensitizer for Hepatitis Virus Assays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing immunochromatographic assays for hepatitis virus lack the sensitivity needed for accurate detection, leading to false negatives.
Innovation Solution
A sensitizer for immunochromatographic assays, comprising a polymer with a phosphorylcholine group as a side chain, is used to enhance the sensitivity of hepatitis virus detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional immunochromatographic assay methods are used for hepatitis virus detection, then the assay is easy to perform, but the detection sensitivity is low leading to false negatives
Solution Approach 1:
The invention changes the chemical composition parameter of the sample diluent by incorporating a copolymer with phosphorylcholine groups. This parameter change in the diluent formulation enhances the detection sensitivity of the immunochromatographic assay for hepatitis virus while preserving the ease of operation, as the method remains a simple lateral flow assay requiring no special equipment or complex procedures
Solution Approach 2:
The invention uses a composite material approach by formulating the sample diluent as a mixture containing a copolymer with phosphorylcholine groups alongside other components. This composite diluent formulation improves detection sensitivity by reducing non-specific binding and enhancing antigen-antibody interactions, while the assay maintains its simplicity and ease of operation
2Measurement precision
If sensitivity is increased by changing the addition position of immunochromatographic reagents, then detection sensitivity improves, but the device complexity increases
Solution Approach 1:
The invention introduces a copolymer with phosphorylcholine groups as an intermediary substance in the sample diluent. This intermediary enhances the interaction between the hepatitis virus antigen and the antibody on the test strip, improving detection sensitivity without requiring any changes to the physical structure or addition positions of the reagents, thereby maintaining device simplicity
3Measurement precision
If additives are added to sample diluents to increase sensitivity, then detection sensitivity improves, but the manufacturing precision requirements increase
Solution Approach 1:
The invention modifies the chemical composition parameter of the sample diluent by adding a copolymer with phosphorylcholine groups. This parameter change enhances detection sensitivity through improved antigen-antibody binding kinetics and reduced non-specific binding. The manufacturing precision requirements are managed by establishing specific concentration ranges for the copolymer in the diluent formulation
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The sensitizer significantly improves the detection sensitivity of hepatitis virus, allowing for accurate and reliable assays.
Implementation Method 1
Immunochromatographic assay is a method that combines a chromatographic method using membrane capillarity and an immunological method using an antigen-antibody reaction
Implementation Method 2
Immunochromatographic assay is a method that combines a chromatographic method using membrane capillarity
Data Source
AI summary
Provided is a sensitizer for immunochromatographic assay that can detect hepatitis virus with high sensitivity, and an assay using the sensitizer, and the like. A sensitizer for immunochromatographic assay of hepatitis virus as an assay target substance, comprising a polymer represented by the following general formula [1]: wherein R1, R2 and R3 are the same or different and each is a hydrogen atom or a methyl group, R4 is a hydrogen atom, a cation or a 2,3-dihydroxypropyl group, and 1, m and n are each a constitutional unit number and l:m:n is 20 to 100:0 to 80:0 to 80.