Phosphor Nanoparticles Sphericity Control for Storage Stability
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Solution Overview
Problem
Phosphor-integrated nanoparticles used in immunostaining often precipitate or aggregate during long-term storage, leading to variable and inaccurate staining results, requiring complex pretreatment procedures to maintain their performance.
Innovation Solution
Phosphor-integrated nanoparticles with an average sphericity of 0.80 to 0.95 and a circumference ratio of 0.50 to 0.95, incorporated into a matrix with an organic compound, such as a thermosetting resin, and bound with biological component-binding molecules, are used to inhibit precipitation and maintain staining properties after long-term storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If phosphor-integrated nanoparticles are stored in a diluted state in a storage medium, then their fluorescent labeling function is maintained, but they precipitate and aggregate after long-term storage, requiring complex pretreatment procedures
Solution Approach 1:
The patent changes the physical parameters of the nanoparticles by controlling their sphericity (0.80-0.95) and circumference ratio (0.50-0.95) during synthesis. These parameter changes result in nanoparticles that maintain dispersion stability during long-term storage without requiring complex pretreatment procedures, directly resolving the contradiction between storage stability and procedure complexity
Solution Approach 2:
The patent creates a composite structure by integrating phosphor particles into a matrix material (such as polymer or silica). This composite approach prevents precipitation and aggregation during storage while maintaining fluorescent labeling function, eliminating the need for complex pretreatment procedures
2Measurement precision
If phosphor-integrated nanoparticles are used immediately after production, then staining accuracy is high, but long-term storage causes variable test results due to precipitation and aggregation
Solution Approach 1:
The patent performs preliminary synthesis with controlled sphericity (0.80-0.95) and circumference ratio (0.50-0.95) parameters during the manufacturing phase. This preliminary action ensures that the nanoparticles are pre-conditioned to maintain their staining accuracy even after long-term storage, preventing the degradation that would otherwise occur
Solution Approach 2:
The patent incorporates protective measures during synthesis by controlling particle morphology parameters and integrating phosphor into a matrix structure. These beforehand cushioning measures prevent precipitation and aggregation during storage, thereby maintaining staining accuracy over extended periods without requiring immediate use
3Illumination intensity
If phosphor with high sphericity (0.95 or higher) is used, then emission intensity and afterglow characteristics are excellent, but dispersibility and staining properties deteriorate after long-term storage
Solution Approach 1:
The patent optimizes the sphericity parameter to a specific range (0.80-0.95) rather than maximizing it to 0.95 or higher. This parameter change balances emission intensity with storage stability, preventing the deterioration that occurs with highly spherical phosphor particles during long-term storage while maintaining acceptable fluorescent performance
Solution Approach 2:
The patent integrates phosphor particles into a matrix material to create a composite structure. This composite approach maintains the emission characteristics of the phosphor while the matrix provides structural integrity and prevents aggregation during storage, thereby maintaining both emission intensity and storage stability
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 described nanoparticles improve dispersion and prevent aggregation, ensuring clear and accurate immunofluorescent staining even after extended storage, eliminating the need for complicated pretreatment procedures.
Implementation Method 1
phosphor-integrated nanoparticles used in fluorescence observation
Implementation Method 2
phosphor-integrated nanoparticles
Data Source
AI summary
The present invention may provide phosphor-integrated nanoparticles whose precipitation and/or aggregation, particularly aggregation can be inhibited upon carrying out immunostaining therewith and which can thus be used for staining even after long-term storage without requiring a complicated operation, the phosphor-integrated nanoparticles preferrably maintaining excellent performance, such as staining properties, even after long-term storage. The phosphor-integrated nanoparticles of the present invention have an average sphericity (f) of 0.80 to 0.95 and preferably have an average circumference ratio (R) of 0.50 to 0.95. More preferably, the matrix of the particles contains an organic compound, the phosphor-integrated nanoparticles have an average particle size of 300 nm or less, and a biological component-binding molecule is bound on the particle