Buoyant Separation of Target Particles Using Density-Driven Substrates
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Solution Overview
Problem
Conventional particle isolation systems in biological sample processing are inefficient, labor-intensive, prone to user error, and costly, limiting their ability to isolate target components such as rare cancer cells in a high-throughput and reliable manner.
Innovation Solution
A method and system for buoyant separation of particles in biological fluids using substrates with specific densities, where target constituents are bound to buoyant substrates and separated based on density differences, utilizing passive or active forces like gravity or centrifugation, allowing for efficient extraction and further analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional particle isolation systems are used, then particle isolation can be achieved, but the process is inefficient and labor-intensive
Solution Approach 1:
The system uses automatic buoyant separation where particles self-sort based on density differences without requiring manual intervention. The buoyant substrates automatically bind to target particles and facilitate their separation through density-based flotation, eliminating the need for complex manual sorting procedures and reducing labor intensity while maintaining high isolation efficiency.
Solution Approach 2:
The invention changes the physical parameter of density to achieve separation. By using substrates with specific density characteristics and exploiting density differences between target particles and background material, the system achieves automated separation based on a single physical parameter, significantly improving efficiency and reducing operational complexity.
2Reliability
If conventional particle isolation systems are used, then particle isolation can be achieved, but user error is more likely to occur
Solution Approach 1:
The buoyant separation process is self-executing based on physical principles. The substrates automatically bind to target particles through density-driven flotation, and the separation process requires no user judgment or manual manipulation, thereby eliminating user error while maintaining high isolation accuracy and reliability.
Solution Approach 2:
The invention replaces complex mechanical sorting systems with a passive physical separation process. Instead of requiring mechanical manipulation and user judgment, the system uses buoyant forces and density differences to automatically separate particles, substituting mechanical operations with a more reliable physical principle-based approach.
3Reliability
If conventional particle isolation systems are used, then particle isolation can be achieved, but the systems are expensive to operate
Solution Approach 1:
The system uses inexpensive buoyant substrates that can be easily disposed of or recycled after a single use. These simple density-based carriers replace expensive conventional isolation systems, maintaining reliable particle isolation while significantly reducing operational costs through the use of low-cost, single-use materials.
Solution Approach 2:
By changing from complex mechanical systems to a simple density-based physical process, the invention dramatically reduces system complexity and operational costs. The separation relies on fundamental physical principles rather than expensive equipment, achieving the same isolation reliability at a fraction of the cost.
4Productivity
If conventional particle isolation systems are used, then particle isolation can be achieved, but throughput is limited
Solution Approach 1:
The buoyant separation process operates continuously as particles naturally float to the surface based on density differences. This continuous passive separation eliminates the need for intermittent manual sorting operations, maintaining constant throughput while reducing processing time through uninterrupted automated separation.
Solution Approach 2:
The system exploits density differences to achieve rapid separation without time-consuming manual procedures. By base the separation on inherent physical properties of particles rather than time-intensive mechanical sorting, the system achieves high throughput and minimizes processing time while maintaining consistent productivity.
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
Enables efficient and high-throughput separation of target components from large sample volumes with reduced labor and cost, facilitating early cancer detection and other diagnostic applications by improving the accuracy and efficiency of particle isolation.
Implementation Method 1
combining a volume of substrates having a first density with the sample, thereby producing a population of target-bound complexes comprising the target constituent bound to at least a portion of the volume of substrates
Implementation Method 2
physically separating the population of target-bound complexes from the sample based upon interaction between the volume of substrates and an applied force
Data Source
AI summary
A method and system for buoyant separation of a target constituent of a sample, the method comprising: at a process chamber, combining a volume of substrates having a first density with the sample, thereby producing a population of target-bound complexes comprising the target constituent bound to at least a portion of the volume of substrates; within the process chamber, physically separating the population of target-bound complexes from the sample based upon interaction between the volume of substrates and an applied force; aggregating the population of target-bound complexes at a collection region of the process chamber; extracting the population of target-bound complexes from the process chamber; and processing the target constituent from the population of target-bound complexes for further analysis.