Microfluidic Mixing for Nanoparticle Scale-Up
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Solution Overview
Problem
Current methods for producing photosensitizer/anti-tumor drug composite nanoparticles face challenges in achieving continuous, large-scale, and controllable production due to complexity and poor reproducibility, limiting their clinical use.
Innovation Solution
A production system involving a combined pipeline with a turbulent mixing device is used to mix a first phase solution containing a photosensitizer and a second phase solution containing an anti-tumor drug, achieving stable dispersion of composite nanoparticles with controlled particle size and distribution, suitable for continuous scale-up production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If batch preparation methods (high-pressure homogenization, high-shear emulsification, microfluidization) are used to produce photosensitizer/anti-tumor drug composite nanoparticles, then the nanoparticles can be formed with desired properties, but the inter-batch reproducibility is poor and scale-up production is difficult
Solution Approach 1:
The patent transitions from batch preparation to continuous flow preparation using a microfluidic device. The continuous flow system maintains steady-state operating conditions, ensuring consistent nanoparticle formation across batches. The device enables continuous mixing of photosensitizer and anti-tumor drug solutions, producing nanoparticles with reproducible size and composition while facilitating scale-up through extended operation time.
2Reliability
If complex production methods are used to create photosensitizer/anti-tumor drug composite nanoparticles, then the synergistic therapeutic effect is achieved, but the production process complexity increases and reproducibility decreases
Solution Approach 1:
The patent segments the production process into distinct functional zones within the microfluidic device: a mixing zone where photosensitizer and anti-tumor drug solutions are combined, a nanoparticle formation zone where composite nanoparticles self-assemble, and a collection zone. This segmentation simplifies process control while maintaining the synergistic therapeutic effect by ensuring proper mixing and controlled nanoparticle formation.
Solution Approach 2:
The microfluidic device is designed as a universal platform that can produce various types of composite nanoparticles by simply changing the input solutions. The device structure remains the same, but different photosensitizer and anti-tumor drug combinations can be processed, reducing overall process complexity while maintaining therapeutic efficacy across different nanoparticle formulations.
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 system enables the continuous, large-scale, and controllable production of photosensitizer/anti-tumor drug composite nanoparticles with consistent quality and size, overcoming previous challenges of reproducibility and scalability.
Implementation Method 1
mixed sufficiently through a turbulent mixing device to form a stable dispersed composite nanoparticles
Data Source
AI summary
Disclosed in the present invention are a production system and method for producing nanoparticles. Particularly disclosed is a production system, which comprising (1) a first pipeline, (2) a second pipeline, (3) a combined pipeline, and a fluid outlet; wherein the first pipeline and the second pipeline are connected to the combined pipeline, a first phase solution enters the combined pipeline through an outlet of the first pipeline, a second phase solution enters the combined pipeline through an outlet of the second pipeline, and the first phase solution and the second phase solution are mixed in the combined pipeline to form a combined phase; which combined phase flows out through the outlet of the combined pipeline. The production system and method of the present invention can realize the continuous, large-scale and controllable production of composite nanoparticles for a photosensitizer/an anti-tumor drug.