Quinolones Stabilize Oxygen in Diagnostic Compositions
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Solution Overview
Problem
Molecular oxygen in diagnostic test compositions is unstable due to oxidation reactions mediated by trace metals, leading to inaccurate oxygen measurements and reduced shelf-life of test systems.
Innovation Solution
Incorporating a chelating agent such as quinolones at a concentration of 60 mg/L to 120 mg/L into the diagnostic test composition to stabilize molecular oxygen by binding to trace metal contaminants, thereby preventing oxidation reactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If molecular oxygen is used in diagnostic test compositions, then oxygen detection function is enabled, but oxygen stability deteriorates due to oxidation reactions with trace metals
Solution Approach 1:
A chelating agent is introduced as an intermediary substance that binds to trace metals, preventing them from directly interacting with molecular oxygen. This mediator approach resolves the contradiction by allowing oxygen to remain stable in the composition while still being detectable by the electrochemical sensor, thus maintaining both oxygen stability and detection accuracy
2Reliability
If molecular oxygen is used in diagnostic test compositions, then oxygen detection function is enabled, but shelf-life is reduced due to oxidation reactions
Solution Approach 1:
The chelating agent serves as a protective intermediary that sequesters trace metals throughout the shelf-life period, preventing oxidation reactions that would otherwise consume oxygen and reduce the composition's stability. This extends the duration the composition remains functional while maintaining oxygen detection capability
3Stability of the object's composition
If chelating agent is added to stabilize oxygen, then oxygen stability is improved, but composition complexity increases
Solution Approach 1:
The patent specifies precise concentration parameters for the chelating agent (60-120 mg/L) to achieve optimal oxygen stability. By defining specific parameter ranges, the composition complexity is managed through quantitative control rather than qualitative complexity, allowing the chelating agent to stabilize oxygen without excessive formulation complexity
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 use of quinolones effectively stabilizes oxygen in the diagnostic test composition, maintaining accurate oxygen measurements over a prolonged duration and extending the shelf-life of test systems beyond 9 months.
Implementation Method 1
incorporating a chelating agent such as quinolones, into the composition... a quinolones at a concentration of 60 milligrams/liter (mg/L) to 120 mg/L in the composition, to stabilize oxygen in a presence of trace metal
Data Source
AI summary
An example composition includes one or more analytes for use with an electrochemical sensor configured to detect a component of a biological sample, and a quinolones at a concentration of 60 milligrams/liter (mg/L) to 120 mg/L in the composition, to stabilize oxygen in a presence of trace metal.