Quantum Dot Standard Material for Bioanalyzer Verification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing standard materials for verifying bio-analysis equipment accuracy, such as mixed inks and fluorescent substances, suffer from errors in color expression, contamination issues, and poor reproducibility due to photobleaching and sensitivity to light, temperature, and humidity.
Innovation Solution
A standard material composition comprising quantum dot-containing nanoparticles is introduced, which includes a core part, a quantum dot part bound to the surface, and a silica shell part for protection. This composition is used to create standard strips and trays that emit luminescence, allowing for precise verification and correction of bio-analysis equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mixed ink or fluorescent substance is used as standard material, then the verification process can be performed, but the analysis accuracy decreases due to errors in color expression, contamination, and poor reproducibility
Solution Approach 1:
The patent changes the physical and chemical parameters of the standard material by using quantum dots with specific size (2-50 nm) and composition (CdSe, ZnS, PbS) to achieve stable fluorescence emission. The quantum dots are engineered with controlled quantum confinement effects that provide reproducible fluorescence characteristics, resolving the issue of poor measurement precision in fluorescence signal intensity.
Solution Approach 2:
The patent employs composite material structure by combining quantum dot core (CdSe, ZnS, or PbS) with shell materials (ZnS, CdS, or other semiconductors). This composite structure provides both the desired fluorescence properties and enhanced stability against photobleaching and environmental factors, thereby improving both verification reliability and measurement precision simultaneously.
2Reliability
If fluorescent substance is used as standard material, then the verification process can be performed, but the lifespan is reduced due to photobleaching and sensitivity to light, temperature, and humidity
Solution Approach 1:
The patent changes the optical and stability parameters of the standard material by selecting quantum dots with specific size ranges (2-50 nm) and compositions (CdSe, ZnS, PbS). These parameter changes result in quantum dots that exhibit reduced photobleaching and enhanced resistance to environmental factors like light, temperature, and humidity, thereby extending the lifespan while maintaining verification reliability.
Solution Approach 2:
The patent uses composite material structure with quantum dot core surrounded by protective shell materials (ZnS, CdS, or other semiconductors). This composite structure provides a protective barrier that reduces photobleaching and enhances stability against environmental factors, thereby extending the lifespan of the standard material while maintaining its verification functionality.
3Reliability
If ink is used as standard material, then the verification process can be performed, but the manufacturing precision is reduced due to printing process errors and contamination
Solution Approach 1:
The patent replaces the mechanical printing process with a direct deposition or embedding method to incorporate quantum dots into the standard material. This substitution eliminates printing process errors and contamination issues, achieving higher manufacturing precision in color expression while maintaining verification reliability.
Solution Approach 2:
The patent employs composite material approach by integrating quantum dots directly into the standard material matrix through controlled deposition or embedding techniques. This method eliminates the need for separate printing processes, thereby improving manufacturing precision in color expression while maintaining the verification reliability of the standard material.
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 use of quantum dot-containing nanoparticles in standard strips and trays enhances the analysis accuracy of bio-analysis equipment by minimizing errors in fluorescence signal intensity, improving reproducibility, and extending the lifespan of the standard materials.
Implementation Method 1
a standard material composition for verifying a bio_analysis equipment, comprising quantum dot-containing nanoparticles
Implementation Method 2
measuring the fluorescence signal intensity
Data Source
AI summary
The present invention relates to a standard material composition for verifying a bio-analysis equipment, comprising quantum dot-containing nanoparticles. Through a standard strip and/or a standard tray, which are made of the standard material composition, the present invention may increase the analysis accuracy of a bio-analysis equipment.