Systems and methods for reagent storage
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Solution Overview
Problem
Current systems for producing radiopharmaceuticals often require large batches, leading to waste due to inefficiencies in synthesis and storage, as they are typically produced onsite and have short half-lives, necessitating on-site synthesis which is time-consuming and expensive, and do not allow for long-term storage of radiopharmaceutical reagents.
Innovation Solution
A microfluidic device with a reagent storage chamber and a reaction chamber, equipped with a valve to isolate the storage compartment from the reaction chamber, enabling long-term storage and efficient synthesis of smaller batches of radiopharmaceuticals, allowing for point-of-use production and storage of reagents for radiopharmaceuticals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If radiopharmaceuticals are synthesized onsite in large batches, then sufficient product is available for use, but time is lost due to long synthesis time and cost increases
Solution Approach 1:
The synthesis process is divided into modular microfluidic reaction chambers that can operate independently and in parallel. Each chamber performs a specific reaction step, allowing the overall synthesis to be completed faster through concurrent processing rather than sequential batch operations.
Solution Approach 2:
Reagents are pre-loaded into the microfluidic device before the synthesis process begins. The microfluidic system is prepared with all necessary components in place, allowing the actual synthesis to start immediately when activated, eliminating setup time during the synthesis process.
2Reliability
If radiopharmaceuticals are synthesized onsite, then fresh product is available, but cost increases due to expensive equipment and operation
Solution Approach 1:
The microfluidic synthesis device is designed as a disposable single-use unit. After one synthesis cycle, the entire device is discarded, eliminating the need for expensive cleaning, validation, and maintenance of permanent synthesis equipment. This dramatically reduces the cost of operation while maintaining product freshness through on-demand synthesis.
Solution Approach 2:
The complex mechanical batch synthesis equipment is replaced with a simplified microfluidic system that uses fluid pressure and capillary action to drive reactions. This substitution eliminates the need for expensive mechanical actuators, pumps, and control systems while achieving the same synthesis function.
3Quantity of substance
If large batches of radiopharmaceuticals are produced, then sufficient supply is available, but waste increases due to excess product that cannot be used
Solution Approach 1:
The microfluidic device synthesizes only the precise amount of radiopharmaceutical needed for the specific medical procedure, rather than producing large excess batches. The reagent quantities and reaction parameters are optimized to produce exactly the required dose, eliminating waste from unused excess product while ensuring sufficient supply for the intended use.
4Duration of action of stationary object
If reagents are stored long-term, then availability is improved, but degradation occurs due to short half-life of radiopharmaceuticals
Solution Approach 1:
Stable precursor reagents are pre-loaded into the microfluidic device in a stable form that can be stored for extended periods without degradation. When needed, these precursors are converted into the active radiopharmaceutical product through the microfluidic synthesis process, providing long-term storage capability while maintaining product reliability.
Data Source
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AI summary
A microfluidic device for storing a reagent includes a single unit includes a first portion having a reagent storage chamber configured to hold a reagent. The device also includes a second portion having a reaction chamber configured to support the reagent during a reaction process to form a product. The device also includes a valve configured to isolate the reagent storage compartment from the reaction chamber when the valve is in a closed state.