Conjugated Polymeric Particle Non-Aqueous Polynucleotide Coupling
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Solution Overview
Problem
The conjugation of polynucleotides to substrates is often inefficient, leading to lower densities of the conjugated polynucleotide, random regions devoid of the desired polynucleotide, poor separations, low accuracy in detection methods, and high signal-to-noise ratio in sequencing techniques.
Innovation Solution
A method involving the exchange of counter ions with lipophilic counter ions to form a biomolecule complex, dispersion in a nonaqueous solvent, and coupling to a substrate, utilizing nucleophilic or electrophilic substitution reactions to enhance conjugation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional conjugation methods are used in aqueous solutions, then the process is simple and readily accessible, but water interferes with the conjugation reaction leading to low conjugation efficiency and random distribution of polynucleotides on the substrate
Solution Approach 1:
The patent changes the fundamental parameter of the solvent system from aqueous to non-aqueous (organic) solvents. This parameter change eliminates water's interference with the conjugation reaction, enabling efficient covalent bonding between polynucleotides and substrates. The non-aqueous environment allows the use of reactive groups that would otherwise be deactivated by water, directly resolving the conjugation efficiency problem.
Solution Approach 2:
The patent introduces a non-aqueous solvent as an intermediary medium that facilitates the conjugation reaction. This intermediary environment allows the polynucleotide and substrate to interact effectively without water's interfering effects. The non-aqueous solvent acts as a mediator that enables the formation of stable covalent bonds while maintaining reaction efficiency.
2Manufacturing precision
If conventional conjugation methods are used, then the procedure is straightforward, but it results in random regions devoid of polynucleotide and lower densities of conjugated polynucleotide
Solution Approach 1:
By changing the solvent parameter from aqueous to non-aqueous, the patent creates conditions that favor uniform polynucleotide distribution. The non-aqueous environment enables controlled reaction conditions that prevent random aggregation and ensure even conjugation across the substrate surface, eliminating the formation of polynucleotide-devoid regions.
Solution Approach 2:
The patent achieves uniform local distribution of polynucleotides through controlled conjugation in non-aqueous solvents. The reaction conditions are optimized to ensure consistent polynucleotide density across all regions of the substrate, transforming the local quality from random/inhomogeneous to uniform/homogeneous distribution.
3Measurement precision
If conventional conjugation methods are used, then the approach is simple, but it leads to poor separations and high signal-to-noise ratio in sequencing
Solution Approach 1:
The patent changes the conjugation environment parameter from aqueous to non-aqueous, which directly improves detection accuracy. This parameter change eliminates water-related interference that causes poor separations and high signal-to-noise ratios, resulting in cleaner signals and more accurate detection in sequencing applications.
Solution Approach 2:
The patent converts the typically harmful effect of water (which causes interference and poor separation) into a beneficial non-aqueous environment. By removing water from the conjugation process, the method transforms the potential harm of aqueous limitations into the benefit of enhanced reaction efficiency and signal quality.
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 method improves the conjugation efficiency by avoiding interference from water, allowing for more effective capture and detection of genetic markers and sequencing, resulting in higher accuracy and signal quality.
Implementation Method 1
exchanging a counter ion associated with a biomolecule with a lipophilic counter ion to form a biomolecule complex
Implementation Method 2
coupling the polynucleotide to the polymeric particle by nucleophilic or electrophilic substitution
Implementation Method 3
coupling the polynucleotide to the polymeric particle by nucleophilic or electrophilic substitution
Data Source
AI summary
A method of conjugating a substrate includes exchanging a counter ion associated with a biomolecule with a lipophilic counter ion to form a biomolecule complex, dispersing the biomolecule complex in a nonaqueous solvent, and coupling the biomolecule complex to a substrate in the presence of the nonaqueous solvent.