Non-Coplanar Culture Chamber for Real-Time Secretion Detection
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Solution Overview
Problem
Current methods for detecting cellular secretions are limited by their inability to provide real-time monitoring, often requiring sequential protocols, labeling steps, and post-culture analysis, which restricts the ability to quantify kinetics and differentiate between cell types and secreted compounds simultaneously.
Innovation Solution
A method involving a culture chamber with distinct, non-coplanar surfaces for real-time detection of cellular secretions, where one surface is functionalized with probes binding to target cells and another with ligands binding to secreted compounds, allowing for simultaneous detection of both signals without interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sequential protocols with labeling steps are used for detection, then detection sensitivity is improved, but real-time monitoring capability deteriorates
Solution Approach 1:
The detection system is segmented into two spatially separated surfaces: a first surface for cell capture and a second non-coplanar surface for secretion detection. This segmentation allows simultaneous real-time monitoring and sensitive detection without sequential labeling steps, as each surface performs its function independently and concurrently.
Solution Approach 2:
The patent transitions from a single-plane detection approach to a three-dimensional configuration with non-coplanar surfaces. By positioning the detection surface at a different spatial dimension (non-coplanar) relative to the cell culture surface, the system enables real-time monitoring while maintaining detection sensitivity through vertical or angular separation of functions.
2Loss of information
If multiple parameters are monitored simultaneously, then information completeness is improved, but signal interference increases
Solution Approach 1:
The detection system separates different detection functions onto distinct non-coplanar surfaces. Cell-type identification and secretion detection occur at spatially separated locations, allowing multiple parameters to be monitored simultaneously without spectral or spatial signal interference that would occur in a single-plane system.
Solution Approach 2:
The culture medium acts as an intermediary that transports secretions from the cell culture surface to the detection surface. This mediator enables the separation of cell location and detection location in space while maintaining functional connection, allowing multi-parameter monitoring without direct signal interference between detection channels.
3Device complexity
If cell identification and secretion detection are performed on the same surface, then device complexity is reduced, but detection precision deteriorates
Solution Approach 1:
The system segments cell identification and secretion detection onto separate surfaces within a single integrated device. The first surface is optimized for cell capture and identification, while the second non-coplanar surface is optimized for secretion detection, improving precision for each function while maintaining overall device integration.
Solution Approach 2:
Each surface is locally optimized for its specific function: the first surface has properties optimized for cell adhesion and identification, while the second surface has properties optimized for secretion capture and detection. This local quality differentiation improves detection precision without requiring completely separate devices.
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 real-time monitoring of cellular secretions and their kinetics, allowing for the identification of secretory cells and compounds within complex samples, improving diagnostic and therapeutic applications by providing immediate, multi-parametric analysis.
Implementation Method 1
at least a 1st surface on which said target Ci is present, the presence of said target Ci on said 1st surface generating a 1st signal
Implementation Method 2
at least a 2nd surface, different from said 1st surface and not coplanar with said 1st surface, functionalized by at least one ligand binding specifically to said compound Co secreted by said target Ci, the specific binding between said ligand and said compound Co generating a 2nd signal distinct from said 1st signal
Implementation Method 3
the diffusion of compounds in the immediate environment of a cell thus allows the appearance of spots characteristic of individual cellular secretory activity
Data Source
Figure 1A~2B
Figure 3~4
AI summary
The present invention relates to a method for measuring in real time the secretion of a compound Co by a target Ci, said method comprising: culturing, in a liquid medium, in a culture chamber, a plurality of targets including at least one target Ci, said culture chamber comprising: (i) at least one 1st surface on which said target Ci is present, the presence of said target Ci generating a 1st signal; and (ii) at least one 2nd surface that is different from said 1st surface and not coplanar with said 1st surface, which surface is functionalised by at least one ligand specifically binding to said compound Co secreted by said target Ci, the specific bond between said ligand and said compound Co generating a 2nd signal that is distinct from said 1st signal; and detecting in real time said 2nd signal and optionally said 1st signal. The present invention also relates to devices possibly implemented in such a method.