Nanostructured Fluorescence Chamber for Rapid Nucleic Acid Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current nucleic acid amplification-based diagnostics face challenges in achieving early and conclusive optical detection due to limitations in fluorescence signal enhancement, requiring extended assay times to reach detection thresholds.
Innovation Solution
Integration of a multi-layered nanostructure coating with sub-micrometer nanostructures made of plasmonic materials on the interior surfaces of amplification reaction chambers, enhancing fluorescence signals through geometric dimensions and material properties for faster detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If conventional amplification reaction chambers are used without nanostructure coatings, then the device complexity remains low, but the fluorescence signal intensity is insufficient requiring extended assay times
Solution Approach 1:
The patent applies parameter changes by modifying the physical and chemical properties of the reaction chamber interior surface through nanostructure coating. The coating changes surface area, surface energy, and optical properties to enhance fluorescence signal intensity, thereby reducing the time required to reach detection thresholds without fundamentally altering the amplification reaction process itself.
Solution Approach 2:
The patent employs composite materials by combining the base reaction chamber material (typically plastic or glass) with a multi-layered nanostructure coating comprising metal nanoparticles, dielectric layers, and functional polymers. This composite structure provides both the mechanical integrity of the original chamber and the optical enhancement properties of the nanostructured coating, resolving the contradiction between simplicity and performance.
2Measurement precision
If multi-layered nanostructure coatings with plasmonic materials are applied to amplification reaction chambers, then fluorescence signal enhancement is achieved, but the ease of manufacture decreases
Solution Approach 1:
The patent applies preliminary action by pre-coating the reaction chamber interior surfaces with nanostructured layers before the amplification reaction takes place. The multi-layered coating is manufactured and characterized in advance, optimizing fluorescence enhancement properties. This allows the enhanced detection capability to be integrated into standard reaction chambers without requiring complex real-time manufacturing during assay production.
Solution Approach 2:
The patent implements local quality by applying the nanostructure coating specifically to the interior surfaces of the reaction chamber where fluorescence detection occurs, rather than treating the entire chamber uniformly. The coating is concentrated on detection-relevant surfaces (well bottoms, side walls facing detectors), providing enhanced sensitivity where needed while minimizing manufacturing complexity and material costs.
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
The nanostructure coating significantly reduces the number of cycles required to reach fluorescence detection thresholds, leading to faster and more reliable early detection of target sequences, thereby shortening assay times and improving diagnostic efficiency.
Implementation Method 1
sub-micrometer nanostructures that enhance fluorescence in an NA amplification reaction based on at least one of plasmonic material of which the sub-micrometer nanostructures are made
Data Source
AI summary
An amplification reaction chamber and a method for nucleic acid (NA) amplification in a gene analysis system are provided. The amplification reaction chamber includes an interior surface within which an NA amplification reaction is performed. The amplification reaction chamber also includes a multi-layered nanostructure coating conformally applied to at least a portion of the interior surface and including sub-micrometer nanostructures that enhance fluorescence in the NA amplification reaction based on at least one of plasmonic material of which the sub-micrometer nanostructures are made and geometric dimensions of the sub-micrometer nanostructures.