Structured Substrate for Uniform Protein Crystallization
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Solution Overview
Problem
Current substrates for protein analysis in Life Sciences diagnostics often result in non-uniform crystallization due to irregular surface structures, leading to inconsistent signals in analytical apparatuses, as proteins crystallize unevenly on hydrophobic surfaces, affecting the efficiency and throughput of the analysis process.
Innovation Solution
A substrate with a structured surface featuring regular patterns of elevated structures, ranging from 1 nm to 100 μm in dimension, which enhances hydrophobic properties and promotes smooth, uniform crystallization by increasing the contact angle and reducing the contact surface area between the analyte and substrate, thereby facilitating more homogeneous and rapid crystallization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a hydrophobic surface is used for protein crystallization, then the contact angle increases and droplet expansion is reduced, but the crystallization becomes non-uniform and signal consistency deteriorates
Solution Approach 1:
The patent applies local quality by creating specific microstructured regions (elevated structures with defined geometry) on the substrate surface that provide localized nucleation sites. These structured zones have different properties than the surrounding areas, creating controlled locations for uniform crystal formation while maintaining overall hydrophobic characteristics.
Solution Approach 2:
The patent changes physical parameters of the surface by introducing microstructures with specific dimensional ranges (1 nm to 100 μm). This structural parameter modification transforms the surface properties to enable both hydrophobicity and uniform crystallization, resolving the contradiction between contact angle and crystallization quality.
2Reliability
If chemical treatment is applied to modify surface energy, then wettability is improved, but the process complexity and number of manufacturing steps increase
Solution Approach 1:
The patent replaces chemical treatment methods with a physical/structural approach. Instead of using chemical coatings or plasma treatments to modify surface energy, the invention uses mechanical microstructuring (elevated structures with specific geometries) to achieve the desired wettability and crystallization properties, thereby simplifying the manufacturing process.
Solution Approach 2:
The patent changes the physical state and structure of the substrate surface by introducing microstructures rather than altering chemical composition. This parameter change from chemical to physical modification reduces manufacturing complexity while maintaining reliable wettability control.
3Quantity of substance
If the contact surface area between analyte and substrate is increased, then more proteins can crystallize, but the crystallization becomes less uniform and signal consistency decreases
Solution Approach 1:
The patent applies segmentation by dividing the substrate surface into multiple discrete elevated structures rather than providing a continuous large contact area. This segmentation creates numerous small, uniform nucleation sites that collectively accommodate protein crystallization while maintaining uniformity and signal consistency through the regular distribution of structures.
Solution Approach 2:
The patent uses local quality by creating specific microstructured regions that provide controlled local environments for crystal nucleation. Each elevated structure serves as a localized zone with optimized properties for uniform crystal formation, ensuring signal consistency while accommodating sufficient protein crystallization across the surface.
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 structured surface design leads to smoother and more homogeneous protein crystallization, reducing analysis time and improving the throughput of analytical processes by providing a uniform platform for microcrystal formation, enhancing hydrophobic properties and reducing the expansion of the crystallization matrix droplets.
Implementation Method 1
The structured surface 102 is configured to stimulate a smooth crystallization of microcrystals... which enhances hydrophobic properties and promotes smooth, uniform crystallization by increasing the contact angle and reducing the contact surface area between the analyte and substrate
Implementation Method 2
The crystallization matrix evaporates and the protein/matrix alloy crystallize on the surface of the substrate
Implementation Method 3
The structured surface 102 is configured to stimulate a smooth crystallization of microcrystals... promotes smooth, uniform crystallization... facilitating more homogeneous and rapid crystallization
Data Source
AI summary
A substrate is provided, which comprises a structured surface including a regular pattern of a plurality of elevated structures that are elevated with respect to a nominal surface of the substrate, wherein at least two dimensions are between 1 nm and 100 μm, the structured surface being configured to stimulate smooth crystallization of microcrystals or to boost hydrophobic properties. A target plate comprising a plurality of substrates is disclosed as well.