Photoluminescent Nanostructure Hydrogels for In-Vivo Glucose Sensing
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Solution Overview
Problem
Current in-vivo light sensors for biomedical applications, such as glucose level detection, are often expensive, require high resolution, and involve bulky equipment, limiting their effectiveness and practicality.
Innovation Solution
The development of stimuli-responsive hydrogels containing photoluminescent nanostructures, such as single-walled carbon nanotubes, which change their photoluminescence emission in response to external stimuli, allowing for the detection of analytes like glucose without the need for bulky equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional in-vivo light sensors are used for biomedical applications, then detection capability is achieved, but device complexity and cost increase
Solution Approach 1:
The patent extracts the sensing function from complex external equipment and embeds it directly into a nanoscale hydrogel composition that can be introduced into the body. The photoluminescent nanostructures within the hydrogel serve as the active sensing element, eliminating the need for bulky external sensors while maintaining detection capability.
Solution Approach 2:
The hydrogel acts as an intermediary medium between the biological environment and the photoluminescent nanostructures. It provides a biocompatible matrix that protects the nanostructures while allowing analyte diffusion, thereby enabling detection without direct contact between complex sensor equipment and biological tissues.
2Measurement precision
If conventional in-vivo light sensors are used for biomedical applications, then detection capability is achieved, but equipment size increases
Solution Approach 1:
The sensing function is extracted from bulky external equipment and concentrated into nanoscale photoluminescent structures embedded in a minimally invasive hydrogel formulation, reducing equipment volume from macroscopic to nanoscopic scale.
Solution Approach 2:
The invention changes the scale parameter from macroscopic sensor devices to nanoscale structures. The photoluminescent nanostructures operate at the nanometer scale, allowing the sensing system to function at a volume reduction of several orders of magnitude while maintaining detection precision.
3Measurement precision
If photoluminescent nanostructures are embedded in hydrogels for analyte detection, then sensor accuracy is improved, but nanostructure stability must be maintained
Solution Approach 1:
The patent creates a composite material system where photoluminescent nanostructures are embedded within a hydrogel matrix. The hydrogel provides structural support and protection to the nanostructures, while the nanostructures provide the photoluminescent sensing function. This composite structure maintains both sensor accuracy and nanostructure stability.
Solution Approach 2:
The hydrogel matrix provides localized protection and stabilization to the photoluminescent nanostructures at their specific embedding sites. The local environment created by the hydrogel maintains nanostructure integrity while allowing the necessary photoluminescent response to analytes.
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
This approach enables biocompatible, cost-effective, and accurate detection of analytes like glucose, reducing biological fouling and preventing nanostructure leaching, with potential for real-time monitoring and improved sensor accuracy.
Implementation Method 1
photoluminescent nanostructure embedded in the hydrogel
Data Source
AI summary
Systems and methods related to compositions including hydrogels and photoluminescent nanostructures are described. The compositions can undergo a change in a physical, chemical, dielectric, or other property upon exposure to an altering stimulus. Changes in one or more properties of the hydrogel may impart a change in the photoluminescence of the nanostructures embedded in the hydrogel.