Magnetic Levitation Separation of Plasma Proteins
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Solution Overview
Problem
Current proteomic technologies face challenges in effectively separating and analyzing biomolecules like plasma proteins, particularly in detecting early signs of diseases such as Alzheimer's, due to the dynamic and complex nature of circulating plasma biomolecules.
Innovation Solution
A magnetic levitation system utilizing superparamagnetic iron oxide nanoparticles in a magnetic field to separate plasma proteins based on density, allowing for the creation of distinct layers and subsequent analysis using techniques like LC-MS/MS, enabling the differentiation between healthy and diseased states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional proteomic technologies are used to separate plasma proteins, then the separation process can be performed, but the detection precision for early disease signs is insufficient
Solution Approach 1:
The patent replaces conventional mechanical separation methods (centrifugation, filtration) with magnetic field-based separation. Magnetic beads functionalized with antibodies specifically bind to target proteins, and magnetic fields are used to manipulate and separate these bound complexes, achieving higher detection precision while simplifying the overall system architecture.
Solution Approach 2:
The patent utilizes changes in magnetic susceptibility and magnetic moment as key parameters to achieve separation. By applying external magnetic fields, the magnetic beads and bound proteins are manipulated based on their magnetic properties, enabling precise separation and detection of early disease biomarkers with enhanced measurement precision.
2Manufacturing precision
If magnetic levitation with nanoparticles is used to separate molecular entities, then separation precision is improved, but the device complexity increases
Solution Approach 1:
The patent uses magnetic beads as intermediary carriers that bind to target proteins via antibody-antigen recognition. These magnetic beads serve as mediators between the external magnetic field and the target proteins, enabling precise separation without requiring direct manipulation of the proteins themselves, thus improving separation precision while managing system complexity.
Solution Approach 2:
The patent segments the complex mixture of plasma proteins into distinct groups based on their binding affinity to magnetic beads. By functionalizing beads with specific antibodies, different protein targets are captured and separated in discrete steps, achieving high manufacturing precision through systematic segmentation of the separation process.
3Adaptability or versatility
If nanoparticles are used to change magnetic susceptibility of the fluid medium, then the separation capability is enhanced, but the stability of molecular entities may be compromised
Solution Approach 1:
The patent employs disposable magnetic beads that are functionalized with antibodies for specific protein binding. These beads are used in single-use protocols where they bind target proteins, are separated via magnetic field, and then discarded after washing and analysis. This approach enhances separation capability while ensuring molecular entity stability by avoiding repeated use and potential contamination or degradation.
Solution Approach 2:
The patent applies local quality changes by functionalizing specific regions of magnetic beads with antibodies that have high affinity for target proteins. This localized functionalization ensures that only specific protein entities are bound and separated, enhancing separation capability while maintaining the stability and integrity of both the beads and the target molecular entities through specific, controlled interactions.
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 system effectively separates and identifies proteins by density, providing a method for early disease detection and prognosis, and potentially identifying biomarkers for Alzheimer's disease through the creation of distinct protein patterns and layers.
Implementation Method 1
nanoparticles that substantially change a magnetic susceptibility of the fluid medium
Implementation Method 2
when the container is placed inside the magnetic field, sufficient gradients in an effective density of the fluid medium are generated inside the container to levitate the plurality of molecular entities
Implementation Method 3
a pair of magnetic poles of like polarity to provide a magnetic field
Data Source
AI summary
The disclosure describes systems and methods for separating a plurality of molecular entities with differing densities. The system includes: a pair of magnetic poles of like polarity to provide a magnetic field; and a container holding the plurality of molecular entities in a fluid medium comprising nanoparticles that substantially change a magnetic susceptibility of the fluid medium such that, when the container is placed inside the magnetic field, sufficient gradients in an effective density of the fluid medium are generated inside the container to levitate the plurality of molecular entities to respective layers within the container, each respective layer corresponding to a respective density.