Microfluidic Sample Analysis with Optical Polymer Compartmentalization
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Solution Overview
Problem
Existing single-cell analysis methods struggle to compartmentalize biological samples for assays without additional processing steps, such as nucleotide amplification, while preserving spatial information.
Innovation Solution
A method involving a fluidic device with polymer precursors and a spatial energy modulating element, like a digital micromirror device, to generate polymer matrices around analytes, allowing for localized assays and reagent introduction without amplification, using detectors to identify analyte locations and adjust discrete areas optically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional processing systems are used for biological samples, then sample analysis can be performed, but the systems are expensive, require extensive maintenance, and are difficult to operate
Solution Approach 1:
The patent employs disposable microfluidic cartridges that are pre-filled with reagents and designed for single-use. Each cartridge contains all necessary components for complete sample analysis, eliminating the need for expensive, complex conventional processing systems. The disposable nature ensures consistent performance without requiring maintenance or calibration, while significantly reducing operational complexity and cost.
Solution Approach 2:
The patent extracts the complex processing functions from centralized laboratory systems and relocates them to portable, point-of-care devices. By integrating sample preparation, reagent mixing, and analysis functions into a single handheld device with disposable cartridges, the system removes the need for expensive conventional equipment while maintaining analytical capabilities.
2Measurement precision
If centralized processing is used, then comprehensive analysis can be performed, but rapid results at the point of need cannot be achieved
Solution Approach 1:
The patent segments the centralized laboratory processing into distributed, portable units that can be deployed at the point of need. Each handheld device contains integrated microfluidic systems that perform complete sample analysis locally, eliminating transport time and enabling immediate results while maintaining comprehensive analytical capabilities through pre-loaded reagent cartridges.
Solution Approach 2:
The patent prepares reagents and sample preparation materials in advance within sealed disposable cartridges before deployment. This preliminary action ensures that when the device is used at the point of need, all necessary components are already in place and ready for immediate analysis, eliminating preparation time and enabling rapid results.
3Adaptability or versatility
If manual processing steps are used, then flexibility can be maintained, but operator error and inconsistency increase
Solution Approach 1:
The patent implements self-service through automated microfluidic systems that perform all processing steps without manual intervention. The disposable cartridges are pre-configured with reagents and channel geometries that automatically guide sample processing, eliminating operator error while maintaining flexibility through programmable control of fluid flow and reaction conditions.
Solution Approach 2:
The patent achieves flexibility through programmable control of processing parameters such as fluid flow rates, mixing intensities, and reaction times. By changing software parameters rather than physical configurations, the system maintains adaptability while ensuring consistent, reproducible results through precise digital control, eliminating manual variability.
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 compartmentalized analysis of biological samples with retained spatial information, facilitating assays like sequencing and functional analysis without nucleotide amplification, enhancing precision and efficiency.
Implementation Method 1
a pump in communication with the reservoir and configured to deliver fluid through the device
Implementation Method 2
a detector in communication with the reaction chamber and configured to detect analytes in the fluid
Implementation Method 3
a mixing chamber in communication with the reservoir and configured to mix reagents with a sample
Implementation Method 4
a mixing chamber in communication with the reservoir and configured to mix reagents with a sample
Implementation Method 5
a heating element in communication with the reaction chamber and configured to heat the sample
Data Source
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AI summary
Described herein are systems and methods for analyzing biological samples. Including a method for processing an analyte, comprising providing a fluidic device comprising the analyte and one or more polymer precursors; selecting a discrete area within said fluidic device; providing an energy source in optical communication with fluidic device; and selectively supplying a unit of energy generated from the energy source to the fluidic device to generate a polymer matrix within the fluidic device, wherein the polymer matrix is within the discrete area or adjacent to the discrete area.