Antibody-Based Polymer Quantification for Protein Conjugates
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Solution Overview
Problem
There is a lack of reliable methods for determining the amount of physiologically acceptable polymer molecules, such as PEG, bound to proteins, with existing methods being insensitive and only allowing estimation rather than precise quantification.
Innovation Solution
A method involving the use of antibodies specifically binding to physiologically acceptable polymer molecules, which are brought into contact with proteins bound to these polymers, allowing for the detection of a complex formation and subsequent quantification of the polymer-protein conjugates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If colorimetric methods are used to determine polymer content, then the method is simple to perform, but the measurement precision is insufficient and only allows estimation rather than precise quantification
Solution Approach 1:
The patent introduces a monoclonal antibody as an intermediary substance that specifically binds to the polymer molecule. This antibody serves as a mediator between the polymer and the detection system, enabling specific and sensitive detection. The antibody-polymer complex can then be detected using standard immunoassay techniques, providing precise quantification while maintaining operational simplicity through the use of well-established ELISA methodology.
2Adaptability or versatility
If existing determination methods are used, then the procedure is available, but the reliability of the method is insufficient for accurate quantification of polymer-protein conjugates
Solution Approach 1:
The patent applies local quality by developing an antibody with specific binding characteristics tailored to the polymer structure. The monoclonal antibody is designed to recognize specific epitopes on the polymer molecule, providing selective and reliable detection. This specific binding capability ensures that the method reliably quantifies polymer-protein conjugates without interference from other substances, thereby improving reliability while maintaining method availability.
3Measurement precision
If monoclonal antibodies specific for polymer molecules are developed, then measurement precision is improved, but device complexity increases due to antibody production and characterization requirements
Solution Approach 1:
The patent uses a monoclonal antibody that can be produced through cell fusion techniques, creating a standardized reagent that can be replicated. The antibody is characterized and validated to ensure consistent performance. By using a cloned antibody line, the detection system becomes reproducible and can be standardized across different experiments and laboratories, managing complexity through standardization while maintaining high measurement precision.
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
Enables precise determination of the amount of polymer molecules bound to proteins, providing a reliable and sensitive method for quantification, as demonstrated through various ELISA techniques and assays.
Implementation Method 1
an antibody being capable of specifically binding to a polymer molecule
Data Source
AI summary
The present invention relates to a method for determining the amount of a physiologically acceptable polymer molecule bound to a protein, an antibody or other composition being capable of specifically binding to a physiologically acceptable polymer molecule, and a kit containing said antibody or composition.