Laser Particle Flow Sorting Using Spectral Emission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current flow sorters are unable to effectively sort laser particles or cells based on their spectral emission characteristics, limiting the ability to leverage these techniques for efficient and scalable single-cell analysis.
Innovation Solution
A flow sorter system that routes laser particles or cellular entities into multiple collection channels based on their spectral emission characteristics, using a spectrometer to analyze the laser emission and a processor to generate sorting signals for microfluidic sorting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional fluorescence-based flow sorting is used, then existing sorting capabilities are maintained, but spectral purity and multiplexing capacity are limited
Solution Approach 1:
The patent changes the fundamental detection parameter from fluorescence intensity to laser emission wavelength. By measuring the spectral wavelength of laser particles rather than relying on fluorescence brightness, the system achieves superior spectral purity and can resolve many more distinct labels simultaneously, enabling high-capacity multiplexing.
Solution Approach 2:
The patent replaces the fluorescence detection mechanism with laser emission detection. Instead of measuring fluorescent signal intensity which is limited by spectral overlap, the system detects the characteristic laser wavelength of each particle, providing both higher precision and greater multiplexing capability.
2Productivity
If flow sorters are designed for traditional fluorescence sorting, then compatibility with existing protocols is maintained, but inability to sort laser particles limits scalability
Solution Approach 1:
The patent designs a flow sorter that can handle both traditional fluorescent particles and laser particles using the same hardware platform. The spectrometer-based detection system is universal enough to accommodate different particle types, enabling the system to scale from single-cell analysis to high-throughput sorting of laser-particle-tagged cells.
Solution Approach 2:
The patent introduces a spectrometer as an intermediary detection component that bridges traditional fluorescence sorting and laser particle sorting. The spectrometer analyzes the emission spectrum of particles passing through the flow cell, enabling discrimination between different laser particles and fluorescent labels using a unified detection approach.
3Measurement precision
If single-cell analysis is performed at large scale, then biological insights are improved, but lack of sorting capability for laser particles prevents efficient implementation
Solution Approach 1:
The patent implements real-time feedback control where the spectrometer continuously monitors the emission spectrum of particles in the flow stream, and the sorting system dynamically directs particles to appropriate collection channels based on their identified characteristics. This enables high-speed, high-precision single-cell analysis at scalable throughput.
Solution Approach 2:
The patent tags cells with laser particles before analysis, creating identifiable optical barcodes that allow subsequent sorting and analysis. This preliminary barcoding enables large-scale single-cell studies by providing a stable, detectable identifier that persists through the analysis workflow.
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 sorting of laser particles and LP-tagged cells with high spectral purity, allowing for scalable single-cell analysis and multiplexing capabilities beyond traditional fluorescence-based methods.
Implementation Method 1
each laser microparticle is configured to generate laser emission with one or more distinct spectral peaks when excited
Implementation Method 2
a spectrometer receiving the laser emission from the one or more laser microparticle and generating spectral data
Data Source
AI summary
A system and method for flow sorting includes a sample loader that is configured to receive a sample that contains one or more laser microparticles, wherein each laser microparticle is configured to generate laser emission with one or more distinct spectral peaks when excited. The system further includes a spectrometer receiving the laser emission from the one or more laser microparticle and generating spectral data and a processor configured to receive the spectral data and generate a sorting signal. The system also includes a switch configured to receive the sorting signal and route the one or more microparticles to a particular one of multiple collection channels based on the sorting signal.