3D Mesoporous Biochip for High Sensitivity Detection
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Solution Overview
Problem
Current biochip detection technologies face limitations in sensitivity, requiring complex imaging techniques and equipment for effective DNA, protein, and cell detection, which hinders efficient analysis and industrial application.
Innovation Solution
A biochip with a three-dimensional mesoporous layer is developed using the sol-gel technique, featuring a high specific surface area and porosity, allowing for the recognition of labeled molecules and cells with enhanced sensitivity, potentially simplifying detection equipment and processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional biochip detection methods are used, then detection can be performed, but sensitivity is insufficient and complex imaging techniques are required
Solution Approach 1:
The patent applies porous materials by incorporating a three-dimensional mesoporous layer on the biochip substrate. This mesoporous layer has high porosity (up to 95%) and large specific surface area, which amplifies the detection signal by providing extensive binding sites for analytes. The porous structure enables enhanced sensitivity without requiring complex imaging techniques, as the signal amplification occurs at the material level rather than requiring complex optical systems.
Solution Approach 2:
The patent transitions from traditional two-dimensional biochip surfaces to a three-dimensional mesoporous structure. By adding the vertical dimension with the mesoporous layer, the effective surface area for detection is dramatically increased. This dimensional change allows for higher analyte capture capacity and signal amplification, improving detection sensitivity while simplifying the overall detection system by eliminating the need for complex imaging equipment.
2Measurement precision
If substrate surface modification is performed to improve detection sensitivity, then signal amplification is achieved, but the complexity of detection equipment remains high
Solution Approach 1:
The mesoporous layer serves as an advanced substrate modification that inherently provides signal amplification through its high surface area to volume ratio. The porous structure creates numerous binding sites that concentrate the analyte signal, enabling detection with simpler equipment. The material itself performs the amplification function, reducing the need for complex external detection devices.
Solution Approach 2:
The patent creates a simplified detection system by embedding the amplification function directly into the biochip structure through the mesoporous layer. Instead of requiring complex imaging equipment to achieve sensitivity, the porous structure replicates and amplifies the signal at the material level, effectively copying the amplification function into the substrate itself rather than requiring external complex equipment.
3Measurement precision
If a three-dimensional mesoporous layer is added to the biochip, then detection sensitivity is enhanced, but the manufacturing process becomes more complex
Solution Approach 1:
The patent employs preliminary action by forming the mesoporous layer structure before the actual detection process. The mesoporous layer is prepared in advance on the substrate, creating the amplification structure prior to analyte binding. This preliminary structural preparation enables sensitive detection without adding complexity during the detection process itself, as the amplification infrastructure is already in place.
Solution Approach 2:
The mesoporous layer is formed using sol-gel techniques that create a porous structure through chemical processes. This approach integrates the porous material formation into the biochip manufacturing workflow, allowing the three-dimensional structure to be incorporated without requiring separate complex manufacturing steps. The sol-gel process enables controlled pore formation that enhances sensitivity while maintaining manufacturability.
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 biochip achieves high sensitivity in detecting labeled DNAs, proteins, peptides, and cells, enabling simplified detection methods, such as using a CCD camera, and has economic potential for industrial applications by amplifying signal intensity and reducing equipment complexity.
Implementation Method 1
The three-dimensional mesoporous layer is a network polymer with nano-scaled pores, such as aerogel material. Its porosity can be as high as 95%. Due to its high porosity, it possesses a variety of characteristics: high specific surface area...
Implementation Method 2
a blending process, a heating process, a coating process, a gelation process... using the sol-gel technique
Implementation Method 3
a blending process, a heating process, a coating process, a gelation process... The three-dimensional mesoporous material is a network polymer
Data Source
AI summary
The present invention discloses a biochip with a three-dimensional structure. The surface of the three-dimensional mesoporous layer is chemically modified to recognize labeled DNAs, proteins, peptides, saccharides, and cells. In addition, this invention also discloses a method for preparing the biochip with a three-dimensional mesoporous layer, including a blending process, a heating process, a coating process, a gelation process, a cleaning process, a drying process, and a surface modification process.