Optical Sensor Multi-Analyte Detection Hydrogel Quantum Dots
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Solution Overview
Problem
Existing biosensors can only detect one type of analyte, such as glucose or alcohol, using a single sensor, limiting their ability to detect multiple items simultaneously.
Innovation Solution
An optical sensor is developed, comprising a fluorescent unit with multiple kinds of quantum dots, enzymes, and quenchers embedded in a hydrogel, allowing for the detection of multiple analytes using a single sensor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single sensor is used to detect one type of analyte, then the sensor structure is simple and easy to manufacture, but the sensor cannot detect multiple items simultaneously
Solution Approach 1:
The patent combines multiple quantum dots with different emission wavelengths into a single sensor unit, allowing the sensor to detect multiple analytes simultaneously. Each quantum dot is paired with specific enzymes and quenchers to create a multi-functional detection system that integrates multiple detection capabilities into one device.
Solution Approach 2:
The sensor is designed with universal functionality to detect multiple types of analytes (glucose, alcohol, lactic acid, urea) using a single device. The hydrogel matrix serves as a universal platform that accommodates different quantum dot-enzyme-quencher combinations, enabling one sensor to perform multiple detection functions.
2Adaptability or versatility
If multiple quantum dots, enzymes, and quenchers are combined in a single sensor, then multiple items can be detected, but the sensor structure becomes complex
Solution Approach 1:
The patent applies local quality by creating distinct functional zones within the hydrogel matrix, where each quantum dot-enzyme-quencher combination is localized to detect specific analytes. This spatial organization allows multiple detection functions to coexist without interfering with each other, maintaining sensor simplicity while achieving multi-analyte detection.
Solution Approach 2:
The sensor uses composite materials by combining quantum dots, enzymes, and quenchers within a hydrogel matrix. This composite structure integrates multiple functional components into a unified material system that maintains structural simplicity while enabling complex multi-analyte detection capabilities.
3Stability of the object's composition
If quantum dot-enzyme conjugates are confined in hydrogel, then the sensor can maintain structural integrity, but the detection accuracy for multiple items simultaneously is reduced
Solution Approach 1:
The patent segments the fluorescent unit into distinct quantum dot-enzyme-quencher complexes within the hydrogel matrix. Each segment is designed to detect a specific analyte, allowing the sensor to maintain structural integrity while achieving high detection accuracy for multiple items simultaneously through spatial separation of detection functions.
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 optical sensor achieves accurate detection of multiple items by utilizing the specific interactions between quantum dots, enzymes, and quenchers, ensuring high sensitivity and specificity.
Implementation Method 1
a fluorescent unit containing a plurality of kinds of quantum dots, enzymes, and quenchers in a hydrogel
Implementation Method 2
a biosensor using a quantum dot and an enzyme
Implementation Method 3
a fluorescent unit containing a plurality of kinds of quantum dots, enzymes, and quenchers in a hydrogel
Data Source
AI summary
An optical sensor that includes a fluorescent unit containing a plurality of kinds of quantum dots, enzymes, and quenchers in a hydrogel.