Full-Spectrum Flow Cytometry Panels for Fluorophore Separation

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Solution Overview

Problem

Existing flow cytometry methods struggle to accurately differentiate and characterize immune cell populations due to spectral overlap and interference from multiple fluorophores, limiting the depth of analysis and information extraction from limited biological samples.

Innovation Solution

A full spectrum flow cytometer system that utilizes a high number of detectors across multiple lasers to measure the entire fluorochrome emission spectrum, enabling precise spectral fingerprinting and mathematical differentiation of fluorophores, allowing for the combination of 30 or more fluorescently labeled antibodies to analyze complex cell populations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If multiple fluorophores are combined to increase the number of markers analyzed, then the depth of analysis and information extraction are improved, but spectral overlap and interference increase making differentiation difficult

Engineering Contradiction:

Improveinformation extraction from biological samplesVSAvoiddifferentiation of cell populations

Core Design Contradiction:

Loss of informationVSMeasurement precision

Solution Approach 1:

The emission spectrum is segmented into multiple wavelength channels using a spectrometer with detectors at specific wavelength positions. This allows the system to measure multiple fluorophore signals simultaneously by separating their spectral contributions, enabling analysis of 30+ markers while maintaining precision through mathematical differentiation of overlapping signals

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system changes the measurement parameter from traditional flow cytometry (single wavelength detection) to full spectrum analysis (multiple wavelength detection). By measuring the entire emission spectrum and using mathematical algorithms to deconvolute overlapping signals, the system achieves both high marker capacity and precise cell population differentiation

Inventive Principle:

Principle #35Parameter changes

2Measurement precision

If the number of detectors and lasers is increased to measure entire fluorochrome emission spectra, then measurement precision is improved, but device complexity increases

Engineering Contradiction:

Improvespectral fingerprinting of fluorophoresVSAvoidflow cytometer system configuration

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

A single spectrometer-based detection system performs multiple functions: measuring entire emission spectra, providing spectral fingerprinting, enabling mathematical differentiation of fluorophores, and supporting 30+ color analysis. This multi-functional approach replaces what would traditionally require multiple separate detection systems, achieving high precision while managing complexity through integration

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Measurement precision

If full spectrum analysis is performed to differentiate fluorophores, then measurement precision is improved, but analysis time and computational requirements increase

Engineering Contradiction:

Improvespectral differentiation accuracyVSAvoiddata analysis time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The system performs preliminary spectral measurement of all fluorophores in a single comprehensive scan, capturing the complete emission spectrum. By acquiring all spectral data simultaneously rather than sequentially or through multiple rounds of analysis, the system reduces total analysis time while maintaining high precision through mathematical differentiation algorithms applied to the comprehensive spectral dataset

Inventive Principle:

Principle #10Preliminary action

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

Enhances the ability to perform high-throughput, in-depth analysis of immune cell populations, providing more detailed characterization and maximizing information extraction from limited samples, thus improving the understanding of immune responses and therapeutic approaches.

Implementation Method 1

Flow cytometers utilize lasers as light sources to produce both scattered and fluorescent light signals that are read by detectors such as photodiodes or photomultiplier tubes

Methodology Applied

Scientific EffectFluorescence: Fluorescence

Implementation Method 2

Flow cytometers utilize lasers as light sources to produce both scattered and fluorescent light signals that are read by detectors such as photodiodes or photomultiplier tubes

Methodology Applied

Scientific EffectPhotoelectric Effect: Photoelectric Effect

Data Source

PatentUS20250334501A1Methods of forming multi-color fluorescence-based flow cytometry panel

Publication Date: 2025.10.30 CYTEK BIOSCI

AI summary

In one embodiment, a method of building an optimized color flow cytometry panel is disclosed using a full spectrum flow cytometer with five excitation lasers and five corresponding detection modules. In another embodiment, a graphical user interface is disclosed generated by a server computer from a fluorochrome database and displayed by a client computer to assist in the selection of a set of fluorochromes for use in an assay to analyze biological samples. The GUI can display spectra graphs to visually show how fluorochromes may overlap and can generate similarity indexes for the paired fluorochrome interference and a complexity index for overall many to many interferences generated by a selected group or set of fluorochromes.