Voltammetric Detection Cartridge With Penetrable Reagent Compartments
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Solution Overview
Problem
Existing voltammetric technologies require laboratory facilities for analysis, leading to time-consuming and costly sample transportation with potential safety risks and alterations in chemical constituency, and lack immediate on-site detection capabilities, especially for biological molecules.
Innovation Solution
A sample analysis cartridge with compartments containing activating compounds and electroactive analytes, separated by a penetrable barrier, which allows for on-site voltammetric detection by activating the analyte upon sample introduction, generating an electrical signal detectable by a voltammetric sensor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If voltammetric analysis is performed in laboratory facilities, then measurement precision is improved, but loss of time and productivity deteriorate due to sample transportation and storage requirements
Solution Approach 1:
The invention extracts the essential voltammetric detection components (sensor, electroactive analyte, activating compound) from the laboratory environment and integrates them into a portable cartridge that can be used on-site. This extraction enables the detection system to function outside the laboratory, eliminating transportation time while maintaining detection precision through the specialized cartridge design containing controlled reagent compartments and a voltammetric sensor.
Solution Approach 2:
The cartridge design integrates multiple functions into a single portable unit: sample reception, reagent mixing, voltammetric detection, and signal processing. This multi-functional integration allows the system to perform laboratory-quality voltammetric analysis in field conditions, simultaneously improving speed by eliminating transportation while maintaining measurement precision through the unified design.
2Measurement precision
If voltammetric analysis is performed in laboratory facilities, then measurement precision is improved, but device complexity worsens due to requirement for laboratory equipment
Solution Approach 1:
The invention segments the complex voltammetric detection system into a self-contained cartridge module that includes the voltammetric sensor, electroactive analyte, activating compound, and sample reception chamber. This segmentation isolates the complex detection components within a standardized, portable unit that can be used without elaborate laboratory equipment, thereby maintaining measurement precision while reducing overall system complexity.
Solution Approach 2:
The cartridge is designed to be self-sufficient, containing all necessary reagents (electroactive analyte and activating compound) and the voltammetric sensor within a single unit. The cartridge performs its own sample processing and detection functions without requiring external laboratory equipment, enabling precise measurements in field conditions while eliminating the complexity of laboratory infrastructure.
3Measurement precision
If sample transportation is required, then measurement precision may be maintained, but object-affected harmful factors worsen due to potential alterations in chemical constituency
Solution Approach 1:
The invention performs preliminary actions by pre-loading the cartridge with the electroactive analyte and activating compound in separate compartments before sample analysis. This preliminary preparation ensures that all necessary reagents are already in place and properly stored within the cartridge, eliminating the need for sample transportation and storage while maintaining detection precision. The activating compound is activated only when needed, preventing premature chemical reactions.
Solution Approach 2:
The cartridge acts as an intermediary between the sample and the detection system, containing and protecting the electroactive analyte and activating compound within a controlled environment. This intermediary structure prevents direct exposure of the reagents to external conditions during transportation, thereby preventing chemical alterations while maintaining measurement precision through the protected reagent system.
4Measurement precision
If sample transportation is required, then measurement precision may be maintained, but loss of substance worsens due to potential degradation of fluid sample
Solution Approach 1:
The system performs preliminary action by conducting the voltammetric detection immediately at the sample collection site using the portable cartridge, eliminating the time required for sample transportation and storage. This immediate analysis prevents degradation of the fluid sample and loss of target analytes, while maintaining measurement precision through the specialized cartridge design that ensures proper sample handling and reagent mixing.
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, safe, and cost-effective on-site detection of fluid parameters without sample transportation, reducing analysis time and eliminating the need for laboratory equipment.
Implementation Method 1
voltammetric detection of a fluid parameter in a fluid sample... a voltammetric sensor disposed at least partially within the second compartment... when a voltage is applied across the sample analysis reservoir... generating an electrical signal detectable by a voltammetric sensor
Data Source
AI summary
Cartridges for the voltammetric detection of fluid parameters in a fluid sample are provided. The cartridges contain a sample reservoir containing two compartments fluidically separated by a barrier. Each compartment contains a chemical compound to facilitate voltammetric detection of a fluid parameter. A fluid collection device containing a fluid sample can be received by the sample reservoir, and the barrier can be penetrated by the fluid collection device, to thereby cause contact between the fluid sample and both chemical compounds. Upon introduction of the fluid sample in the sample reservoir a fluid parameter can be voltammetrically detected. Related assemblies including the cartridges, as well as methods for operating the cartridges are also described.