Flexible Carrier for In Situ Raman Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current Raman spectroscopy-based single molecule detection methods require rigid substrates, making it difficult to detect molecules in real-time, in situ, or on irregular surfaces, as they need to be extracted from the object, limiting the ability to analyze molecules with anomalous shapes.
Innovation Solution
A flexible carrier with a substrate, middle layer, and metal layer is developed, featuring a patterned bulge structure that enhances surface plasmon resonance, allowing for improved Raman scattering and enabling detection on irregular surfaces without extracting the molecules, using materials like polyethylene terephthalate and carbon nanotubes to create a flexible platform for Raman spectroscopy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid substrate is used for single molecule detection, then the structural stability is improved, but the ability to detect molecules on irregular surfaces in real-time deteriorates
Solution Approach 1:
The patent replaces rigid substrates with flexible thin film substrates that can conform to irregular surfaces. The flexible substrate maintains structural integrity while adapting to curved or complex geometries, enabling in-situ detection without requiring molecule extraction.
Solution Approach 2:
The substrate transitions from a static rigid structure to a dynamic flexible structure that can adapt its shape. This allows the detection platform to dynamically conform to various surface geometries while maintaining the necessary structural stability for detection.
2Measurement precision
If molecules are extracted from the object for detection, then the detection sensitivity is improved, but the real-time in-situ detection capability deteriorates
Solution Approach 1:
The patent extracts only the necessary detection function from traditional rigid substrates and transfers it to flexible substrates with enhanced SERS properties. This allows direct in-situ detection without extracting molecules from the object, eliminating time delays while maintaining sensitivity.
Solution Approach 2:
The flexible substrate acts as an intermediary platform that brings high-sensitivity detection capability directly to the sample location. This mediator enables real-time detection by eliminating the need for molecule extraction and transfer to separate analysis equipment.
3Adaptability or versatility
If a flexible substrate is used, then the adaptability to irregular surfaces is improved, but the structural stability deteriorates
Solution Approach 1:
The patent employs composite material structures combining flexible substrates with patterned metal layers. The flexible substrate provides adaptability to irregular surfaces, while the patterned metal layer with SERS-enhancing structures maintains structural stability and provides the necessary detection functionality.
Solution Approach 2:
The substrate structure is designed with locally optimized properties where the flexible base provides overall adaptability, while specific localized regions contain patterned metal structures that provide structural stability and SERS enhancement for 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
The flexible carrier enhances surface-enhanced Raman scattering, allowing for real-time, in situ detection of single molecules on irregular surfaces with high sensitivity and accuracy, overcoming the limitations of rigid substrates and enabling analysis of molecules on curved or complex shapes.
Implementation Method 1
A flexible carrier with a substrate, middle layer, and metal layer is developed, featuring a patterned bulge structure that enhances surface plasmon resonance, allowing for improved Raman scattering
Implementation Method 2
A laser irradiation is supplied to the single molecule samples by a Raman detection system to cause a Raman scattering and produce a Raman spectroscopy
Data Source
AI summary
A molecular detection device is related. The device includes a carrier, a detector and a control computer. The carrier includes a substrate, a middle layer and a metal layer. The middle layer is sandwiched between the substrate and the middle layer. The detector is configured to detect molecules on a surface of the carrier. The control computer is connected to the detector and configured to analyze a detection result. The middle layer includes a base and a patterned bulge on the base, and the patterned bulge includes a plurality of strip-shaped bulges, the metal layer is on the patterned bulge.