Live Cell Analysis Using Suspended Microchannel Resonators
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Solution Overview
Problem
Current precision medicine approaches relying on next-generation sequencing (NGS) technologies are limited by the dynamic range of diagnostic assays and potential treatment options, making it difficult to determine the effectiveness of treatments for individual patients.
Innovation Solution
Methods and devices for rapidly measuring functional properties of living cells using suspended microchannel resonators (SMRs) that allow direct analysis of cells from tissue samples without overnight culturing, enabling precise measurement of mass accumulation rates (MAR) with minimal sample preparation and no culture medium interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If next-generation sequencing (NGS) is used for precision medicine, then genomic markers can be identified, but the dynamic range of diagnostic assays and treatment options is limited
Solution Approach 1:
The suspended microchannel resonator device measures multiple functional properties of living cells (mass, stiffness, volume, growth rate) simultaneously, creating a universal platform that transcends the limitations of single-modality genomic analysis and expands the dynamic range of diagnostic capabilities
2Measurement precision
If traditional measurement methods are used, then cells can be analyzed, but the error rate is high (about 10% for optical methods)
Solution Approach 1:
The patent replaces optical measurement systems with a mechanical resonance-based measurement system (suspended microchannel resonator), achieving significantly higher precision (0.01% error rate) through mechanical detection of cellular mass and physical properties
3Quantity of substance
If overnight culturing is performed, then cells can be grown for analysis, but time is lost (24-48 hours delay)
Solution Approach 1:
The device performs measurements on living cells directly after sample collection without requiring preliminary culturing steps, eliminating the 24-48 hour delay by measuring cells in their native state immediately upon extraction from tissue
4Quantity of substance
If small samples are used, then limited tissue can be analyzed, but traditional methods require large numbers of cells
Solution Approach 1:
The mechanical resonance detection system enables precise measurements on individual cells or very small cell populations, allowing reliable analysis of minute samples (even single cells) that would be insufficient for traditional statistical-based measurement methods
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
Provide rapid, precise, and non-destructive analysis of living cells with an error rate of about 0.01%, allowing for dynamic monitoring of cancer cells and therapeutic responses, and enabling multiplex analysis of small samples with less than 1% error, facilitating more accurate diagnosis and therapeutic selection.
Implementation Method 1
suspended microchannel resonators (SMRs) that allow direct analysis of cells from tissue samples
Data Source
AI summary
A method of rapid functional analysis of cells is provided. A body fluid sample is introduced into a reservoir of a measurement instrument. A living cell is loaded directly from the body fluid sample into a channel of the measurement instrument in the absence of long-term cell culturing, cell passaging, and application of long-term drug pressure to cells. A functional biomarker of the living cells is measured while the living cell flows through the channel. The functional biomarker measured may be mass accumulation rate (MAR) or mass change. The measurement instrument may be a suspended microchannel resonator (SMR).