Lipid Nanoparticle Analysis in Physiological Fluids Using SEC-MALS
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Solution Overview
Problem
There is a need for new methods and systems to quantitatively analyze lipid nanoparticles (LNPs) in the presence of physiological fluids, given their importance in therapeutic applications beyond vaccination and the lack of effective analysis techniques.
Innovation Solution
A method involving size-exclusion chromatography (SEC) followed by multi-angle light scattering (MALS) is employed to analyze LNPs, optionally combined with LC-MS/MS and UV absorbance, to determine properties such as size, stability, and purity, suitable for monitoring manufacturing and pharmacokinetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional analysis techniques are used for LNPs in physiological fluids, then the analysis can be performed, but the measurement precision and reliability are insufficient
Solution Approach 1:
The analysis system is segmented into multiple independent measurement modules: size-exclusion chromatography for size distribution, multi-angle light scattering for molecular weight and concentration, mass spectrometry for compositional analysis, and UV absorbance for nucleic acid quantification. Each module targets specific LNP properties, allowing precise and reliable characterization through specialized measurement techniques rather than a single generic method.
Solution Approach 2:
The patent creates a universal analysis platform that can characterize multiple LNP properties simultaneously using a single integrated system. The SEC-MALS-MS/MS combination enables one system to measure size, molecular weight, concentration, composition, and purity, eliminating the need for multiple separate analyses and improving both precision and reliability through consistent, reproducible measurements.
2Adaptability or versatility
If multiple analysis techniques are combined, then comprehensive LNP characterization is achieved, but the device complexity increases
Solution Approach 1:
The patent merges size-exclusion chromatography, multi-angle light scattering, mass spectrometry, and UV absorbance into a single integrated analysis system. By combining these techniques in one platform, the system achieves comprehensive LNP characterization while reducing the operational complexity of managing multiple separate instruments and sample preparation steps.
Solution Approach 2:
The system performs preliminary separation and preparation through size-exclusion chromatography before the sample enters the detection systems. This preliminary action concentrates the LNP signal and removes interfering substances, enabling more accurate and reliable measurements in the subsequent MALS and MS/MS analyses without requiring complex sample preparation protocols.
3Productivity
If rapid analysis is performed, then manufacturing monitoring is efficient, but the manufacturing precision may be compromised
Solution Approach 1:
The integrated system enables continuous, real-time monitoring of LNP properties during manufacturing without requiring discrete, sequential analysis steps. The SEC-MALS-MS/MS combination provides continuous data streams on size distribution, molecular weight, and composition, allowing rapid feedback and adjustment of manufacturing parameters while maintaining high precision through simultaneous multi-parameter measurement.
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 provides a comprehensive analysis of LNPs, enabling accurate determination of their size, stability, and purity, which is crucial for manufacturing and therapeutic applications.
Implementation Method 1
subjecting the sample to a size-exclusion chromatography (SEC)
Implementation Method 2
acquiring a multi angle light scattering (MALS) signal from the sample
Implementation Method 3
acquiring the UV absorbance (e.g., at λ=260 nm) for the sample, e.g., to determine (e.g., quantify) the amount of nucleic acid in the LNP
Data Source
AI summary
Methods and systems for analyzing lipid nanoparticles using size exclusion chromatograph coupled with multi angle light scattering are disclosed.