Magnetic Capsule Specimen Chamber for Analyte Enrichment
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Solution Overview
Problem
Existing methods for detecting and isolating target analytes, particularly biological macromolecules and cells, are inefficient in handling low quantities due to inadequate concentration and enrichment, leading to sample loss and degradation, especially in large bulk specimens.
Innovation Solution
A system comprising a specimen chamber assembly with a bulk reservoir and a magnetic capsule that reduces the sample volume by using paramagnetic particles to bind with target analytes, followed by magnetic separation within a vertex, allowing for efficient concentration and identification of analytes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If magnetic particles are added to bind with target analytes in bulk liquid samples, then analyte concentration and detection accuracy are improved, but sample volume reduction and enrichment efficiency are insufficient
Solution Approach 1:
The system divides the bulk liquid sample into multiple smaller reaction chambers or compartments, each containing magnetic particles. This segmentation increases the surface area to volume ratio, enhancing the interaction between magnetic particles and target analytes, thereby improving both detection accuracy and enrichment efficiency simultaneously.
Solution Approach 2:
The patent introduces a magnetic field as an intermediary force to facilitate the separation and concentration of magnetic particle-bound analytes from the bulk liquid. This magnetic field mediator enables efficient enrichment by rapidly concentrating bound analytes at specific locations, resolving the contradiction between detection precision and enrichment efficiency.
2Measurement precision
If sample volume is reduced for analysis, then detection sensitivity is improved, but sample loss and analyte degradation increase
Solution Approach 1:
The system performs preliminary concentration and enrichment of target analytes using magnetic particles before reducing the sample volume for final analysis. This preliminary action ensures that sufficient analyte is concentrated into the smaller volume, maintaining detection sensitivity while minimizing sample loss and degradation throughout the process.
3Measurement precision
If conventional separation techniques are used, then analyte isolation is achieved, but processing time and sample handling complexity increase
Solution Approach 1:
The patent replaces complex mechanical separation systems (such as centrifugation or filtration apparatus) with a magnetic field-based separation mechanism. Magnetic particles bound to analytes can be rapidly separated from the bulk liquid by applying a magnetic field, dramatically reducing processing time while maintaining effective analyte isolation.
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 the detection and isolation of rare analytes with high accuracy and minimal sample loss, facilitating analysis in reduced volumes, thus overcoming the limitations of prior art methods.
Implementation Method 1
magnetic particles that are operative to interact with an applied magnetic field
Implementation Method 2
magnetic separation of such targeted analytes
Data Source
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AI summary
Systems and methods for detecting and sequestering target analytes in a fluid sample. The system comprises a bulk specimen reservoir for receiving a liquid sample, along with paramagnetic materials operative to selectively bind to the target analyte of interest. A vertex is interconnected with the bulk specimen reservoir to define a specimen chamber assembly to which a magnetic chamber is deployed about the vertex portion thereof and operative to sequester the magnetic particles, as well as any analyte of interest bound thereto, within the interior of the vertex. Once sufficient time is allowed for mixing and allowing the magnetic capsule to sufficiently retain the magnetic particles within the vertex, the vertex is disconnected from the specimen reservoir and the paramagnetic materials retained therein analyzed to determine the presence of the analyte of interest.