Blocked Labeled Lectin Complex for High-Sensitivity Glycan Detection
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Solution Overview
Problem
Current methods for measuring lectin-binding substances face challenges in achieving high sensitivity due to weak affinity between lectins and glycans, and non-specific binding leads to low specificity and high background noise.
Innovation Solution
A blocked labeled lectin complex is used, comprising a water-soluble carrier and a labeling substance with a lectin immobilized on it, which improves sensitivity by forming multiple binding points with lectin-binding glycan structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple method using a lectin is used for measuring lectin-binding substances, then the measurement procedure is simplified, but the sensitivity is insufficient due to weak affinity between lectin and glycans
Solution Approach 1:
The invention uses a composite structure consisting of a lectin molecule combined with a polymer carrier. The lectin provides specific binding to glycans while the polymer carrier enhances the overall binding capacity and stability, creating a composite material that maintains operational simplicity while significantly improving measurement sensitivity through multiple binding sites
Solution Approach 2:
The lectin is segmented into multiple binding sites that can simultaneously interact with multiple glycan structures. This segmentation allows a single lectin molecule to form multiple bonds with the target substance, thereby enhancing sensitivity without complicating the measurement procedure
2Measurement precision
If a lectin is used for measuring lectin-binding substances, then the measurement can be performed, but non-specific binding occurs leading to low specificity and high background noise
Solution Approach 1:
The polymer carrier acts as an intermediary between the lectin and the target glycan structures. It provides a scaffold that positions multiple lectin binding sites optimally, enhancing specific binding while the controlled architecture reduces non-specific interactions, thereby lowering background noise and improving signal-to-noise ratio
3Adaptability or versatility
If the affinity between lectin and glycans is weak, then the lectin can bind to various glycans, but measurement sensitivity is difficult to achieve
Solution Approach 1:
Multiple lectin molecules are merged into a single composite structure with the polymer carrier. This merging concentrates multiple weak binding interactions into one strong combined interaction, allowing the system to maintain versatility in binding different glycans while achieving the sensitivity needed for accurate measurement through the cumulative effect of multiple binding sites
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 method enables high-sensitivity measurement of lectin-binding substances with reduced background noise, allowing for accurate detection and quantification using a simple procedure.
Implementation Method 1
binding a lectin to the lectin-target molecules in the presence of a lectin-reactive glycan-containing entity
Data Source
AI summary
A lectin-binding substance measurement method is a method for measuring a lectin-binding substance in a sample, and includes a measuring step of bringing a blocked labeled lectin including a water-soluble carrier made of a first water-soluble polymer and a labeling substance and a lectin immobilized on the water-soluble carrier into contact with the sample.