Microwell Array for Single-Cell Cytoplasmic Analysis
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Solution Overview
Problem
Current methods for analyzing cytoplasmic components in single cells within heterogeneous cell populations are limited, as they primarily provide information at the population level rather than individual or subpopulation levels, and existing techniques are impractical for rapid, accurate, and high-throughput analysis of cytoplasmic components and enzyme activities.
Innovation Solution
A novel apparatus and method utilizing a deposition plate with microwells and a cover plate to isolate and lyse individual cells using an electric field, allowing for the analysis of cytoplasmic components in a heterogeneous cell population, enabling rapid and accurate measurement of cytoplasmic components and enzyme activities in parallel across thousands of cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If classical ATP measurement methods are used, then overall concentration can be assessed, but distribution of ATP concentrations in heterogeneous cell populations cannot be determined
Solution Approach 1:
The invention segments the cell population into individual cells by isolating single cells in separate microwells. Each microwell acts as an independent compartment where a single cell can be analyzed, transforming the population-level measurement into individual cell-level measurement. This segmentation enables the determination of ATP concentration distribution across heterogeneous cell populations rather than providing only bulk average values.
Solution Approach 2:
The invention creates multiple copies of the measurement system through an array of microwells, where each well serves as an independent measurement unit. By parallelizing the measurement across numerous identical microwell units, the system can simultaneously analyze thousands of individual cells, generating statistical distribution data while maintaining the simplicity of single-cell measurement protocols.
2Measurement precision
If single-cell lysis methods are used for cytoplasmic component analysis, then individual cell properties can be measured, but the number of cells that can be analyzed in a reasonable time is limited
Solution Approach 1:
The invention segments both the cell population and the analysis system into numerous independent microwell units arranged in arrays. This segmentation allows parallel processing of thousands of single cells simultaneously, each undergoing lysis and analysis in its own compartment. The segmented architecture transforms a sequential single-cell analysis process into a high-throughput parallel system.
Solution Approach 2:
The invention merges multiple single-cell analysis operations into a single integrated platform. By combining cell isolation, lysis, and measurement functions within an array of microwells that can be processed simultaneously, the system achieves high-throughput analysis while maintaining single-cell resolution. The merging of these functions in parallel across multiple wells dramatically increases productivity.
3Measurement precision
If measurement of enzyme activity in single cells is performed, then cytoplasmic component analysis is enabled, but the complexity of monitoring substrate use over time under well-defined conditions increases
Solution Approach 1:
The invention introduces chemical intermediaries (substrate analogs and detection reagents) that simplify enzyme activity measurement. By using well-defined chemical substrates that produce detectable signals upon enzymatic conversion, the complex process of monitoring enzyme activity over time is transformed into a straightforward chemical reaction and detection process. The intermediary substrates enable indirect but simplified measurement of enzyme function.
Solution Approach 2:
The invention replaces complex mechanical or physical monitoring systems with chemical-based detection methods. Instead of using sophisticated instruments to directly measure enzyme activity mechanics, the system uses chemical substrates that undergo transformation during enzymatic reactions, producing measurable chemical signals. This substitution of mechanical monitoring with chemical detection reduces system complexity while maintaining measurement precision.
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 the analysis of individual cell composition in large cell populations, providing statistically relevant data on cytoplasmic components and enzyme activities, improving upon existing methods by allowing for low-cost, high-throughput, and rapid measurement with accurate correlation to cell surface markers.
Implementation Method 1
A pair of electrodes may be associated with one or more of the microwells, and configured to generate an electric field within the associated microwell to lyse a single cell contained within the microwell.
Data Source
AI summary
An apparatus for analyzing individual cell composition in a heterogeneous cell population may include, in one embodiment, a deposition plate having an array of microwells disposed therein, and a cover plate substantially overlying the deposition plate. A pair of electrodes may be associated with one or more of the microwells, and may be configured to generate an electric field within the associated microwell.