Nanostructures for Extended Analyte Conformation Display
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Solution Overview
Problem
Existing assays face challenges in effectively interrogating macromolecules due to their conformational changes influenced by fluid environments, which can sequester relevant structures or epitopes, limiting assay effectiveness.
Innovation Solution
A composition and method involving particles with attachment sites and coupling moieties are used to attach analytes to a solid support, facilitating extended conformations and stabilizing macromolecular structures for enhanced fluid contact and assay sensitivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If macromolecules are displayed in folded conformations in fluid environments, then the macromolecules maintain their native structure, but the conformational changes sequester relevant structures or epitopes from contact with the fluidic medium, limiting assay effectiveness
Solution Approach 1:
The patent introduces a solid support as an intermediary medium to display macromolecules. The solid support provides a stable platform that prevents the macromolecules from adopting folded conformations that would sequester epitopes. By fixing the macromolecules in extended conformations on the solid support, the invention ensures that relevant structures remain accessible to reagents in the fluidic medium, thereby resolving the contradiction between maintaining native structure and ensuring assay effectiveness.
Solution Approach 2:
The patent changes the physical state parameter of the macromolecules from folded (compact) conformation to extended conformation by utilizing the solid support for display. This parameter change in conformational state ensures that epitopes and structural features remain exposed and accessible to detection reagents, eliminating the sequestration problem while maintaining the macromolecules' structural integrity through the stabilizing effect of the solid support.
2Stability of the object's composition
If macromolecules are attached to particles with multiple attachment sites, then the macromolecules are stabilized in extended conformations, but the device complexity increases
Solution Approach 1:
The patent segments the attachment function into multiple discrete attachment sites distributed across the particle surface. Each attachment site can independently bind to specific moieties on the macromolecule, allowing the macromolecule to be stabilized in an extended conformation through multiple point contacts. This segmentation approach achieves conformational stability without requiring a single complex attachment mechanism, thereby managing device complexity while improving macromolecule stabilization.
Solution Approach 2:
The particle is designed with multiple attachment sites that can accommodate different types of macromolecules and their various moieties. The same particle platform serves multiple functions: it provides structural support, maintains extended conformations, and enables flexible attachment of different analytes. This multi-functionality reduces the need for separate specialized components, managing overall device complexity while achieving stable conformational display.
3Measurement precision
If particles are coupled to solid support sites, then the macromolecules can be displayed in extended conformations for enhanced detection, but the manufacturing precision requirements increase
Solution Approach 1:
The patent applies local quality by creating distinct functional zones on the particle surface. The first face contains coupling moieties for attaching to the solid support, while the second face contains attachment sites for binding macromolecule moieties. This spatial differentiation ensures that the extended conformation is maintained through proper geometric arrangement, improving detection sensitivity while allowing for standardized manufacturing processes that do not require ultra-precise positioning of all attachment sites.
Data Source
AI summary
Systems and methods for immobilizing macromolecules on solid supports are described. The systems and methods facilitate attachment of macromolecules at multiple attachment points. Structural conformations of attached macromolecules may be altered by disclosed systems and methods. Macromolecules may be provided in useful structural conformations for interrogation by detectable binding reagents.