Adhesiveless Microfluidic Chip with Expandable Pump Network
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current microfluidic chip technologies face limitations in pressure tolerance, scalability, and complexity in pumping control systems, particularly in continuous flow manufacturing, which hinders efficient nanoparticle production and pharmaceutical research.
Innovation Solution
The development of microfluidic chips with high-pressure-resistant materials, 3D channel features, and a network of smart syringe pumps that allow for wireless communication and coordinated control of multiple pumps, enabling precise fluid flow management and integration of electronic elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If borosilicate glass or COC microfluidic chips are used, then chemical compatibility is improved, but pressure tolerance deteriorates
Solution Approach 1:
The patent employs composite material structures where a pressure-resistant base material (such as cyclic olefin copolymer or polyethylene) provides mechanical strength and pressure tolerance, while surface coatings or linings (such as plasma treatment, silane coating, or PTFE) provide chemical compatibility and solvent resistance. This composite approach allows the chip to simultaneously withstand high pressures and resist chemical degradation from solvents and APIs.
2Ease of manufacture
If PDMS microfluidic chips are used, then ease of manufacture is improved, but pressure tolerance and solvent compatibility deteriorate
Solution Approach 1:
The patent promotes disposable, pre-fabricated microfluidic chips made from cost-effective materials like cyclic olefin copolymer or polyethylene. These single-use chips eliminate the need for complex cleaning and sterilization processes, reduce cross-contamination risks, and maintain consistent performance across batches. The chips are designed to be discarded after a single use, simplifying the overall manufacturing workflow despite the initial investment in chip fabrication infrastructure.
3Productivity
If multiple syringe pumps are used for continuous flow manufacturing, then productivity is improved, but device complexity deteriorates
Solution Approach 1:
The patent integrates multiple syringe pump control functions into a single centralized control system that can manage multiple pumps simultaneously. This unified controller coordinates the operation of multiple syringe pumps, ensuring synchronized fluid delivery and maintaining precise flow rates across all channels. The integration reduces the operational complexity that would arise from managing multiple independent control systems while preserving the high productivity benefits of multi-pump operation.
4Ease of manufacture
If 2D microfluidic chip architecture is used, then ease of manufacture is improved, but functionality and fluid flow control deteriorate
Solution Approach 1:
The patent transitions from traditional 2D microfluidic chip architectures to 3D microfluidic structures with vertical channel elements, stacked layers, and multi-level fluid pathways. This dimensional enhancement enables complex fluid flow patterns, improved mixing efficiency, and enhanced mass transfer while maintaining manufacturability through techniques like multi-layer lamination, 3D printing, or injection molding. The 3D architecture provides additional degrees of freedom for controlling fluid dynamics without significantly increasing manufacturing complexity.
Data Source
AI summary
A system and method for nanoparticle synthesis employing an adhesiveless, deconstructable microfluidic mixing chip and an expandable wireless network of syringe pumps fluidly coupled to one or more microfluidic mixing chips. The wireless network of syringe pumps is controlled by a microprocessor with feedback from each of the syringe pumps in the network to allow for both individual, grouped and multiplexed control over the plurality of syringe pumps in the network.