Absorption-Encoded Microbeads Multiplexed Detection
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Solution Overview
Problem
Current methods for analyzing properties of systems and detecting target analytes in samples are limited by the inability to selectively stimulate and distinguish between different types of absorption-encoded microbeads, which hinders precise detection and analysis.
Innovation Solution
The use of k dyes with distinguishable absorption spectra to encode n types of microbeads, allowing for selective stimulation and detection based on proportional relationships, enabling the analysis of system properties and target analytes through light emission sensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple types of microbeads are used for detection, then the detection capability and analysis versatility are improved, but the ability to selectively stimulate and distinguish between different microbead types deteriorates due to overlapping absorption spectra
Solution Approach 1:
The absorption spectrum of each microbead type is segmented into multiple wavelength bands, with each band detected by a separate detector. This allows the system to resolve overlapping spectra by analyzing multiple spectral regions simultaneously, enabling selective identification of each microbead type even when their absorption spectra overlap significantly.
Solution Approach 2:
The system transitions from single-wavelength detection to multi-wavelength spectral detection, adding spectral dimensionality to the detection process. By measuring absorption across multiple wavelength bands rather than at a single wavelength, the system can distinguish between microbead types that have overlapping absorption characteristics at any single wavelength.
2Measurement precision
If k dyes with distinguishable absorption spectra are used to encode n types of microbeads, then the measurement precision and detection accuracy are improved, but the device complexity increases due to requiring k light sources and multiple detectors
Solution Approach 1:
Each detector is designed to detect multiple wavelength bands simultaneously, making it a multi-functional component that can monitor several spectral regions. This reduces the total number of detectors needed compared to having one detector per wavelength band, thereby lowering device complexity while maintaining the ability to distinguish multiple microbead types.
Solution Approach 2:
The system utilizes the inherent spectral parameters of the k dyes (their distinguishable absorption spectra) as the encoding mechanism. By selecting dyes with naturally distinct absorption characteristics and detecting these spectral differences, the system achieves high measurement precision without requiring complex additional components, as the differentiation is based on the optical properties of the dyes themselves.
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
This approach enables precise detection and analysis of microbeads and target analytes by selectively stimulating and distinguishing between different types, improving the accuracy and efficiency of property analysis in various applications.
Implementation Method 1
Each k dye has an absorption spectrum that is distinguishable from absorption spectra of others of the k dyes
Implementation Method 2
Light emission is stimulated from k dyes encoding n type of absorption-encoded micro beads present in a sample
Data Source
AI summary
Analysis of a system and/or sample involves the use of absorption-encoded micro beads. Each type of micro bead is encoded with amounts of the k dyes in a proportional relationship that is different from proportional relationships of the k dyes of others of the n types of absorption-encoded micro beads. A system and/or a sample can be analyzed using information obtained from detecting the one or more types of absorption-encoded micro beads.