HCV Antibody Reagent Kit Antigen Segmentation
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Solution Overview
Problem
Conventional reagent kits for detecting HCV antibodies face challenges in stability and reactivity, leading to reduced measurement sensitivity over time due to the inherent properties of HCV antigens used.
Innovation Solution
A reagent kit comprising a first reagent with HCV synthetic peptide antigen in a released state and a second reagent with HCV recombinant antigen immobilized on a solid phase, utilizing a binding substance that can bind to the solid phase binding site added to the synthetic peptide antigen, allowing for stable and reactive antigen-antibody complex formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If HCV antigens are used in conventional reagent kits, then antigen-antibody complex formation occurs for detection, but storage stability and reactivity deteriorate over time leading to reduced measurement sensitivity
Solution Approach 1:
The invention divides the antigen system into two separate components: synthetic peptide antigens and recombinant protein antigens. Each type has distinct stability and reactivity characteristics, and their combined use compensates for individual weaknesses, maintaining reliable detection sensitivity over extended periods.
Solution Approach 2:
The reagent kit employs a composite antigen system combining synthetic peptide antigens and recombinant protein antigens. This composite approach leverages the complementary properties of both antigen types to achieve enhanced and sustained measurement sensitivity that neither component could provide alone.
2Duration of action of stationary object
If HCV antigens are stored for extended periods, then reagent availability is maintained, but reactivity and measurement accuracy decrease
Solution Approach 1:
By segmenting the antigen portfolio into synthetic peptides and recombinant proteins with different stability profiles, the kit ensures that at least one antigen type maintains optimal reactivity throughout the shelf life, preserving measurement precision over extended storage periods.
Solution Approach 2:
The dual-antigen system provides beforehand cushioning against reactivity loss. The complementary stability characteristics of the two antigen types create a buffer that prevents measurement accuracy deterioration during long-term storage, ensuring consistent performance.
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 kit provides stable and accurate measurement of HCV antibodies over time, preventing sensitivity reduction and ensuring higher accuracy by leveraging the enhanced storage stability and reactivity of the antigens.
Implementation Method 1
the antigens are reacted with HCV antibodies in a sample to form antigen-antibody complexes on the solid phase
Data Source
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AI summary
A reagent kit for measuring an HCV antibody is described herein. This reagent comprises a first and second reagents. The first reagent comprises an HCV synthetic peptide antigen which has a solid phase binding site. The second reagent comprises a solid phase. On the solid phase is immobilized a binding substance and/or an HCV recombinant HCV antigen. The binding substance can bind to the solid phase binding site. The method for measuring an HCV antibody in a sample is also described. This method comprises a step for contacting the sample, the first reagent and the second reagent, and a step for detecting a complex comprising the antigen and antibody.