Monolithic Microfluidic Platform for Macromolecule Measurement
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Solution Overview
Problem
Current methods for determining the properties of macromolecules in biological samples are not versatile or robust, lacking simplicity and convenience.
Innovation Solution
A monolithic platform integrating a fluid control unit and a macromolecule measurement unit, featuring an electronic sensing structure, interface structure, and macromolecule measurement structure, which includes a measurement chamber with electrodes and microfluidic channels, and utilizes magnetic particles to immobilize and measure macromolecules, allowing for precise detection of properties like interferon-γ for tuberculosis diagnosis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional methods for determining macromolecule properties are used, then measurement capability is provided, but versatility and robustness are insufficient
Solution Approach 1:
The device incorporates a monolithic platform with integrated fluid control and measurement units that can measure multiple macromolecule properties (size, shape, charge, hydrophobicity) using a single instrument, eliminating the need for multiple separate measurement devices and improving both versatility and measurement robustness
2Ease of operation
If traditional measurement methods are used, then measurement capability is provided, but simplicity and convenience are insufficient
Solution Approach 1:
The patent merges fluid control structures and measurement structures into a single monolithic platform with integrated channels and chambers, simplifying the overall system architecture and making the device easier to operate while maintaining measurement capability
Solution Approach 2:
The device replaces complex mechanical separation and analysis systems with an automated microfluidic platform that uses electrical fields and magnetic particles to manipulate and measure macromolecules, reducing mechanical complexity and improving operational simplicity
3Productivity
If gas is present in measurement cells, then measurement can proceed, but gas-related degradation occurs
Solution Approach 1:
The device purges measurement cells with inert gas to displace oxygen and other reactive gases that cause degradation of macromolecules during measurement, creating a protective inert environment that maintains sample integrity while allowing measurement to proceed efficiently
4Measurement precision
If multiple separate measurement devices are used, then specific measurements can be performed, but device complexity increases
Solution Approach 1:
The monolithic platform integrates multiple measurement capabilities (electrophoresis, sedimentation, chromatography, mass spectrometry) into a single device that can perform all measurements sequentially or in parallel, maintaining measurement precision while reducing the number of separate instruments needed
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, precise, and convenient measurement of macromolecules with improved accuracy and reproducibility, reducing gas-related degradation and enhancing the detection of specific biomarkers like interferon-γ for tuberculosis diagnosis.
Implementation Method 1
a magnet configured to produce a magnetic field in the reaction chamber
Implementation Method 2
an electrode comprising a molecule capable of interacting with a macromolecule to cause a change in an response detectable by the electrode
Data Source
AI summary
Devices for use in determining properties of biochemicals and macromolecules derived from a biological sample include a fluid control unit and a macromolecule measurement unit integrated on a monolithic platform. Devices and methods of measuring the properties of macromolecules using immobilized magnetic particles are also disclosed.