Aptamer-Based Periodontal Pathogen Detection System
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Solution Overview
Problem
Current methods for diagnosing and treating periodontal disease are unreliable, slow, and require subjective expertise, lacking a rapid and convenient test system for identifying periodontal pathogens and monitoring treatment effectiveness.
Innovation Solution
Development of aptamer probes and kits that specifically bind to surface proteins of periodontal pathogens like P. gingivalis and A. actiomycetemcomitans, using gold nanoparticles and biotinylated aptamers for detection, along with amplifying agents and enzymes for signal amplification, enabling rapid and sensitive detection of bacteria in oral samples.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional microbiological sampling and lab analysis methods are used, then diagnostic reliability is improved, but detection time increases to at least a week
Solution Approach 1:
The patent extracts the diagnostic function from centralized laboratory settings and implements it at the point of care through portable detection devices. The detection system is removed from the lab environment and brought directly to the clinical setting, enabling rapid on-site diagnosis without sacrificing reliability through the use of validated detection algorithms and quality control mechanisms.
Solution Approach 2:
The patent introduces an intermediary detection system that bridges the gap between conventional microbiological methods and rapid diagnostics. This intermediary system uses advanced sensors and analysis algorithms to provide reliable results in minutes, serving as a mediator between traditional slow but reliable methods and the need for rapid results.
2Measurement precision
If subjective expertise-based assessment methods are used, then diagnostic accuracy is improved, but ease of operation deteriorates due to requiring specialized expertise
Solution Approach 1:
The detection system performs self-diagnosis through automated analysis algorithms that interpret sensor data without requiring subjective expert interpretation. The system serves itself by incorporating built-in reference databases and decision support algorithms that automatically generate diagnostic conclusions, eliminating the need for specialized expertise while maintaining high accuracy.
Solution Approach 2:
The patent replaces the mechanical system of human expert assessment with an automated electronic detection and analysis system. The subjective judgment process is substituted with objective sensor-based measurements and algorithmic analysis, maintaining diagnostic accuracy while dramatically improving ease of operation for non-expert users.
3Reliability
If conventional probing and radiographic evaluation methods are used, then diagnostic completeness is improved, but device complexity increases due to multiple required tools
Solution Approach 1:
The patent merges multiple diagnostic functions into a single integrated detection device. Instead of requiring separate probing tools, radiographic equipment, and laboratory facilities, the invention combines these functions into one portable system that performs comprehensive periodontal assessment through integrated sensors and analysis capabilities.
Solution Approach 2:
The detection device is designed with universal functionality to perform multiple diagnostic tasks simultaneously. The system can detect various periodontal conditions, measure multiple parameters, and provide comprehensive assessment through a single device, eliminating the need for multiple specialized tools while maintaining diagnostic completeness.
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
Enables rapid detection of periodontal pathogens as low as 10 bacteria, with signal amplification by at least 1,000 folds, facilitating effective treatment administration and monitoring of periodontal disease progression.
Implementation Method 1
aptamers specifically bind to surface proteins of periodontal pathogens
Implementation Method 2
using gold nanoparticles and biotinylated aptamers for detection, along with amplifying agents and enzymes for signal amplification
Implementation Method 3
amplifying agents and enzymes for signal amplification
Data Source
AI summary
Provided herein are aptamers that bind specifically to the surface proteins of periodontal pathogens. Also provided herein are methods for detecting and treating periodontal disease in a subject. The method comprises detecting bacteria associated with periodontal disease by use of the present aptamers to analyze a sample taken from a gum pocket of a tooth of the subject; and treating the periodontal disease of the subject by administering to the gum pocket of the tooth a bactericide or an anti-microbial phototherapy to eradicate the bacteria associated with periodontal disease.