Microfluidic Device for Radioisotope Purification

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Solution Overview

Problem

Current microfluidic devices for radioisotope separation and purification face limitations in efficacy due to configuration and method, failing to meet increased demand and cost reduction needs, especially with stringent safety regulations impacting radioisotope production.

Innovation Solution

A microfluidic device with specific inlet and outlet channel configurations, including junction angles and widths, and materials like polydimethylsiloxane and glass, enhancing heat and mass transfer for improved radioisotope production and waste reduction, integrated into a system that includes multiple microfluidic devices for efficient separation and purification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If traditional purification methods are used, then radioisotope production can be maintained, but purification efficacy is limited and cost increases

Engineering Contradiction:
Improvepurification efficacyVSAvoidproduction cost
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The system divides the purification process into multiple sequential microfluidic devices, each performing a specific separation function. This segmentation allows for high purification efficacy through multiple purification stages while keeping each individual device relatively simple and cost-effective to manufacture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention employs microfluidic hydraulic systems with precisely controlled channel geometries to achieve separation based on fluid dynamics principles. The specific channel width ranges (0.1-10 mm) and junction angle specifications (30-60 degrees) create optimized flow patterns that enhance purification efficacy while maintaining manufacturing feasibility.

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Productivity

If production capacity is increased to meet demand, then radioisotope supply improves, but safety regulation compliance becomes more difficult

Engineering Contradiction:
Improveradioisotope production capacityVSAvoidsafety regulation compliance difficulty
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

By segmenting the production system into multiple modular microfluidic devices connected in series, the system can increase overall production capacity while each individual module remains compact and easier to contain and regulate. This modular approach allows for controlled expansion without proportionally increasing safety compliance complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention changes the operational parameters by using micro-scale channel dimensions (0.1-10 mm widths) and specific junction geometries (30-60 degree angles) that optimize separation efficiency. These parameter changes enable higher productivity through improved mass transfer while the microfluidic containment structure facilitates safer operation under regulations.

Inventive Principle:
Principle #35Parameter changes

3Ease of manufacture

If microfluidic device complexity is reduced for easier manufacturing, then production cost decreases, but separation efficacy is limited

Engineering Contradiction:
Improvedevice manufacturing simplicityVSAvoidseparation efficacy
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The device implements local quality optimization by specifying particular geometric features (channel widths of 0.1-10 mm, junction angles of 30-60 degrees) at critical locations where separation occurs. The rest of the device structure can be simpler, allowing easy manufacturing while maintaining high separation efficacy at the functionally critical junction regions.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The invention identifies specific geometric parameters (channel width range, junction angle range) that optimize separation efficacy. By defining these parameters within specific ranges rather than requiring exact precision throughout the entire device, the system achieves high separation performance while remaining manufacturable with standard tolerances.

Inventive Principle:
Principle #35Parameter changes

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 microfluidic device achieves high purity of radioisotopes by removing up to 100% impurities, reducing waste, and is cost-efficient, with a compact design suitable for hot cells, enabling efficient production and shipping of radioisotopes.

Implementation Method 1

enhancing heat and mass transfer for improved radioisotope production

Methodology Applied
Scientific EffectHeat transfer: Conduction (thermal)

Implementation Method 2

enhancing heat and mass transfer for improved radioisotope production

Methodology Applied
Scientific EffectMass transfer: Diffusion

Data Source

PatentUS20240290514A1Microfluidic device and system for separating and purifying radioisotopes
Publication Date: 2024.08.29 BATTELLE SAVANNAH RIVER ALLIANCE LLC
  • US20240290514A1 patent drawing
  • US20240290514A1 patent drawing
  • US20240290514A1 patent drawing

AI summary

In one aspect, a microfluidic device, system, and method for separating and purifying radioisotopes is disclosed. The microfluidic device may comprise an inlet channel stream, an outlet channel stream, and a junction. The inlet channel stream, the outlet channel stream, and the junction may be in fluid communication.