Transcription Factor Biosensor for Drinking Water Contamination Assessment
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Solution Overview
Problem
Current water safety control systems are inadequate in monitoring and addressing the presence of new chemical and biological contaminants with unknown toxic properties, leading to potential health risks and national security concerns due to their inability to predict interactions and reactions of innocuous substances becoming toxic, and they focus on a limited number of known threats, leaving many contaminants unaccounted for.
Innovation Solution
The use of cell-based biosensors that expose water samples to test cell systems, generating transcription factor activity responses, which are compared to reference standards to determine water quality, allowing for the assessment of contaminants' impact on multiple transcription factors and producing transcription factor signatures for analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If traditional water treatment methods (disinfection, aeration, ozonation) are used, then gross reduction of biological oxygen demand and chemical oxygen demand is achieved, but removal of contaminants posing health and safety risks is highly inadequate
Solution Approach 1:
The patent transforms water quality assessment from measuring physical-chemical parameters (BOD, COD) to measuring biological response parameters (transcription factor activity changes). This parameter change enables detection of contaminants that traditional methods miss, directly addressing the reliability issue while maintaining substance quantity reduction.
Solution Approach 2:
The patent replaces mechanical/chemical treatment systems with a biological sensing system. Instead of relying on physical-chemical processes to remove contaminants, the system uses cell-based biosensors with transcription factors to detect and characterize contaminants, providing reliable identification of health and safety risks.
2Measurement precision
If current water safety control systems focus on limited known hazardous substances, then monitoring and enforcement of specific contaminants is achieved, but thousands of new chemical and biological compounds with unknown toxic properties remain unaccounted for
Solution Approach 1:
The patent creates a universal biosensing system that can detect both known and unknown contaminants through a common mechanism (transcription factor activity measurement). The system performs multiple functions: identifying known contaminants by comparison to reference standards and detecting unknown contaminants through anomalous transcription factor responses, thereby achieving both precision and versatility.
Solution Approach 2:
The patent introduces transcription factors as intermediary molecules that mediate between diverse contaminants and the detection system. These transcription factors interact with various contaminants through their biological mechanisms, translating different contaminant types into a unified measurable signal (activity change), enabling detection of both known and unknown substances.
3Measurement precision
If analytical methods based on lists of hazardous substances are used, then concentrations of evaluated toxicants can be analyzed, but interactions and reactions causing innocuous substances to combine and produce toxic effects cannot be predicted
Solution Approach 1:
The patent converts the harmful effect of contaminant interactions into a beneficial detection signal. When contaminants interact and produce toxic effects, these interactions activate or inhibit transcription factors, creating measurable activity changes. The system detects these changes, turning invisible toxic interactions into detectable signals that reveal previously unpredictable effects.
Solution Approach 2:
The patent implements a feedback mechanism where transcription factor activity changes provide real-time information about contaminant interactions. The system measures transcription factor responses, compares them to reference standards, and uses this feedback to identify unknown toxic effects resulting from contaminant interactions, enabling prediction and characterization of interaction effects.
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 method enables a simple, reproducible, and accurate characterization of water quality, detecting toxic substances regardless of their chemical structure or biological composition, and distinguishing different biological effects, thereby improving the assessment of water safety and purity.
Implementation Method 1
exposing the water sample to a test cell system so that the test cell system responds to the water sample by change in transcription factor activity in said test cell system
Data Source
AI summary
A method of determining water quality of a water sample, comprising exposing the water sample to a test cell system; generating at least one profile of ensuing changes in activities of transcription factors in the test cell system in response to such exposing; and determining from the generated at least one profile the water quality of the water sample. Computer systems and kits for carrying out the water quality determination of water specimens are also described, in which water quality can be readily and accurately determined by transcription factor activity analysis.