SERS Unit Mechanical Holding Eliminates Adhesive Damage
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Solution Overview
Problem
Conventional surface-enhanced Raman scattering units face deterioration of the optical function part due to ingredients in adhesives used for securing the SERS element to a glass slide, affecting the accuracy and reliability of Raman spectroscopic analysis.
Innovation Solution
A surface-enhanced Raman scattering unit that mechanically holds the SERS element on a measurement board without adhesives, using a pinching part to secure the element and prevent peeling of conductor layers, and incorporating a resin measurement board to inhibit deterioration and ensure accurate positioning of the focal point.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesive is used to secure the SERS element to the glass slide, then the SERS element is firmly fixed, but the optical function part deteriorates due to adhesive ingredients
Solution Approach 1:
The patent removes the adhesive from the system entirely, replacing it with a mechanical fixing structure. The SERS element is secured through physical interlocking between the holding part and the element, eliminating the harmful chemical interaction between adhesive ingredients and the optical function part while maintaining firm fixation.
Solution Approach 2:
The holding part serves as an intermediary component between the measurement board and the SERS element. This mechanical mediator provides secure fixation through physical structure rather than chemical bonding, preventing direct contact between potentially harmful adhesives and the sensitive optical function part.
2Manufacturing precision
If adhesive is used to secure the SERS element, then positioning is achieved, but deterioration occurs during storage and measurement
Solution Approach 1:
The patent extracts the adhesive substance from the fixing mechanism, replacing it with a mechanical holding structure. This eliminates the source of deterioration while maintaining precise positioning through the geometric design of the holding part and SERS element interface.
Solution Approach 2:
The holding part is designed with pre-formed positioning features that ensure correct placement of the SERS element before measurement or storage. The mechanical structure inherently provides accurate positioning without requiring adhesive application, preventing deterioration during subsequent handling and storage.
3Reliability
If mechanical holding is used instead of adhesive, then optical function is preserved, but device complexity increases
Solution Approach 1:
The patent divides the measurement board into functional segments: a holding part for mechanical fixation and a measurement area for SERS analysis. This segmentation allows the fixing function to be separated from the measurement function, enabling simple mechanical holding without adhesive while maintaining overall system simplicity through modular design.
Data Source
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AI summary
A SERS unit 1A comprises a SERS element 2 having a substrate and an optical function part 20 formed on the substrate, the optical function part 20 for generating surface-enhanced Raman scattering; a measurement board 3 supporting the SERS element 2 upon measurement; and a holding part 4 mechanically holding the SERS element 2 in the measurement board 3.