Nanostructure Hydrogel Bioanalyte Detection System
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Solution Overview
Problem
Current bio-sensing techniques face challenges in rapidly and selectively separating and concentrating specific target molecules from complex bio-samples, limiting their integration with lab-on-a-chip devices and their ability to detect metabolites effectively for medical diagnostics.
Innovation Solution
A sensing system comprising nanostructures with a hydrogel covalently attached, featuring a sensing moiety that interacts specifically with analytes, causing a detectable change in electrical properties upon contact, enabling rapid and continuous monitoring of bioanalytes without pre-processing and labeling agents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional bio-sensing techniques are used, then detection capability is achieved, but the ability to rapidly and selectively separate and concentrate specific target molecules from complex bio-samples is limited
Solution Approach 1:
The patent extracts the separation and concentration function from the detection system by introducing magnetic beads that selectively bind to target molecules. These beads can be easily separated from the complex bio-sample using magnetic fields, allowing rapid isolation of target molecules before detection. This resolves the contradiction by enabling selective separation without compromising detection capability.
Solution Approach 2:
The patent uses magnetic beads as an intermediary between the complex bio-sample and the detection system. These beads serve as a bridge that captures target molecules through specific binding while allowing easy magnetic separation, thus enabling both selective concentration and efficient detection without direct integration of complex separation equipment.
2Measurement precision
If conventional bio-sensing techniques are used, then detection is possible, but integration with lab-on-chip sensing devices is difficult
Solution Approach 1:
The patent extracts the separation function into a discrete magnetic bead-based step that can be performed outside the chip or integrated as a simple magnetic separation module. This modular approach allows the detection core to remain simple and compatible with lab-on-chip devices while providing selective separation capability through the removable magnetic bead step.
Solution Approach 2:
The patent employs magnetic beads with porous structures that can capture target molecules while maintaining small size for easy handling and integration. The porous structure allows selective binding of targets while the small magnetic particles can be manipulated in microfluidic channels, facilitating integration with lab-on-chip devices.
3Measurement precision
If pre-processing and labeling agents are used, then detection accuracy is improved, but the process becomes more complex and time-consuming
Solution Approach 1:
The patent employs magnetic beads with intrinsic magnetic properties that enable self-separation without requiring external complex equipment. The beads automatically respond to magnetic fields for separation and can be easily washed and processed, providing self-service functionality that reduces process complexity while maintaining detection accuracy through selective binding.
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 system allows for sensitive, real-time detection of bioanalytes at sub-picomolar concentrations, facilitating fast and cost-effective monitoring of metabolites for chronic diseases like diabetes and cancer, and can be integrated into lab-on-chip systems for point-of-care applications.
Implementation Method 1
the hydrogel exhibits a deformation, the deformation leading to the detectable change in the electrical property of the nanostructure
Implementation Method 2
the hydrogel having associated therewith a sensing moiety which selectively interacts with the analyte
Data Source
AI summary
A sensing system and a method utilizing same for determining and/or monitoring a presence and/or level of an analyte in a sample are provided. The sensing system is made of a nanostructure, or a plurality of nanostructures, having covalently attached thereto and a hydrogel having associated therewith a sensing moiety which selectively interacts with the analyte and being configured such that upon contacting the analyte, the nanostructure(s) exhibit a detectable change in an electrical property.