Integrated Analytical Device Arrays Using Diffractive Beam Shaping
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Solution Overview
Problem
Existing analytical systems face challenges in increasing multiplexing capabilities while maintaining sensitivity and reducing complexity, particularly in optical analyses, and there is a need for systems that are scalable, cost-effective, and flexible in configuration.
Innovation Solution
The integration of nanoscale emission volumes with a detector layer, diffractive beam shaping element, and color filtration layer, which spatially separates and directs light to sensing regions, allowing for simplified optical paths and non-spectral discrimination of signal events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the multiplex factor of analyses is increased, then the overall throughput of the system is improved, but the optical system complexity increases
Solution Approach 1:
The optical detection system is segmented into multiple independent detection channels, each capable of detecting a specific wavelength range. This allows simultaneous detection of multiple fluorophores without requiring a single complex detection system, thereby increasing throughput while managing complexity through modular architecture
Solution Approach 2:
The patent transitions from temporal multiplexing (sequential detection) to spectral/spatial multiplexing by adding dimensional separation through wavelength-specific detection channels. This enables parallel detection of multiple reactions simultaneously, dramatically increasing throughput without proportionally increasing system complexity
2Productivity
If the multiplex factor is increased by making systems bigger and higher power, then the number of analyses is improved, but inter reaction cross-talk increases
Solution Approach 1:
Each reaction well is equipped with localized optical detection elements that are optimized for detecting emissions from that specific location. The optical system uses wavelength-specific filters and focused detection paths that are spatially confined to individual reaction sites, preventing cross-talk while enabling high multiplexing capacity across the array
Solution Approach 2:
Wavelength-specific optical filters act as intermediaries between the fluorophores and detectors, allowing only specific wavelength ranges to pass to each detection channel. This spectral filtering prevents signals from one reaction from interfering with detection in another reaction, eliminating cross-talk while maintaining high throughput
3Productivity
If the multiplex factor is increased, then the throughput is improved, but the signal to noise ratio decreases
Solution Approach 1:
The detection system is divided into multiple wavelength-specific detection channels, each optimized for detecting signals from specific fluorophores. This segmentation allows each channel to maintain high signal-to-noise ratio by filtering out irrelevant wavelengths, while the aggregate system achieves high throughput through parallel detection across all channels
Solution Approach 2:
The patent changes the detection parameter from general broadband detection to wavelength-specific detection. By tuning each detection channel to specific wavelength ranges matching the emission spectra of target fluorophores, the system enhances signal-to-noise ratio through spectral selectivity while maintaining high throughput via multiplexed parallel detection
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 configuration enables efficient detection of multiple reactions with reduced optical complexity, maintaining sensitivity and scalability, and reduces the need for complex optical systems, thereby enhancing throughput and reducing costs.
Implementation Method 1
a diffractive beam shaping element spatially separates the light emitted from the nanoscale emission volume and directs the spatially-separated light through the color filtration layer to the plurality of sensing regions
Implementation Method 2
a color filtration layer disposed between the diffractive beam shaping element and the detector layer; wherein the color filtration layer comprises 2 to 9 color filtration elements, each color filtration element specific for a range of light wavelengths
Implementation Method 3
light is emitted from the nanoscale emission volume by a plurality of emitters within the emission volume
Data Source
AI summary
Arrays of integrated analytical devices and their methods for production are provided. The arrays are useful in the analysis of highly multiplexed optical reactions in large numbers at high densities, including biochemical reactions, such as nucleic acid sequencing reactions. The devices allow the highly sensitive discrimination of optical signals using features such as spectra, amplitude, and time resolution, or combinations thereof. The devices include an integrated diffractive beam shaping element that provides for the spatial separation of light emitted from the optical reactions.