Hydrogel Substrates for Sequencing via Phosphoramidite Conjugation
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Solution Overview
Problem
Current genetic testing techniques using discrete nucleic acid conjugated polymer networks face limitations in sensitivity and efficiency, particularly in detecting nucleotide incorporation and sequencing processes, as they often rely on complex devices and substrates without optimized methods for conjugating modified oligonucleotides to polymer networks.
Innovation Solution
The development of discrete polymer network substrates with attached oligonucleotides or nucleic acids, where a moiety is attached to the oligonucleotide or nucleic acid, such as a dye or buffering agent, is integrated into the substrate through specific chemistries like phosphoramidite synthesis, allowing for enhanced conjugation and sequencing capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If discrete nucleic acid conjugated polymer networks are used for genetic testing, then sequencing capability is enabled, but sensitivity and efficiency are limited
Solution Approach 1:
The patent changes the chemical parameters of the conjugation process by introducing specific phosphoramidite chemistry modifications to nucleic acids, enabling direct conjugation to polymer networks with improved sensitivity while maintaining manageable complexity
Solution Approach 2:
The patent creates composite materials by conjugating modified oligonucleotides (with phosphoramidite groups) to polymer network substrates, forming a hybrid structure that combines the specificity of nucleic acids with the structural properties of polymer networks for enhanced sequencing performance
2Manufacturing precision
If modified oligonucleotides are conjugated to polymer networks, then sequencing performance is enhanced, but complex chemistries are required
Solution Approach 1:
The patent applies preliminary action by pre-modifying oligonucleotides with phosphoramidite groups during synthesis, so that the conjugation to polymer networks occurs readily without requiring complex post-synthesis modification procedures
Solution Approach 2:
The phosphoramidite group serves as an intermediary chemical functionality that facilitates the conjugation between oligonucleotides and polymer networks, enabling the reaction to proceed under mild conditions with high precision
3Measurement precision
If conventional substrates are used without optimized conjugation, then device simplicity is maintained, but detection sensitivity is reduced
Solution Approach 1:
The patent applies local quality by introducing specific functional groups (phosphoramidite) at specific locations on the oligonucleotide structure, creating localized reactive sites that enhance conjugation efficiency and detection sensitivity without affecting the overall simplicity of the system
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
This approach enables improved sensitivity and accuracy in genetic testing by facilitating the conjugation of modified oligonucleotides to polymer networks, enhancing sequencing performance and allowing for the use of non-aqueous solvents, thereby improving the detection and analysis of nucleic acids.
Implementation Method 1
a moiety is attached to the oligonucleotide or nucleic acid, such as a dye or buffering agent, is integrated into the substrate through specific chemistries like phosphoramidite synthesis
Data Source
AI summary
A hydrogel network includes a hydrogel polymer having a coupling site, an oligonucleotide conjugated at a terminal end to the hydrogel polymer at the coupling site, and a functional moiety coupled between the terminal end of the oligonucleotide and the coupling site. Such a hydrogel network can be formed by a method including activating a coupling site of a substrate and binding a linker moiety coupled to a terminal end of an oligonucleotide to the activated coupling site, a functional moiety coupled between the terminal end of the oligonucleotide and the linker moiety.