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A Microfluidic-based Hydrodynamic Trap for Single Particles
Published on: January 21, 2011
Controlled vesicle self-assembly in microfluidic channels with hydrodynamic focusing
Andreas Jahn1, Wyatt N Vreeland, Michael Gaitan
1Semiconductor Electronics Division and Analytical Chemistry Division, National Institute of Standards & Technology, Gaithersburg, Maryland 20899, USA.
Journal of the American Chemical Society
|March 5, 2004
Summary
Microfluidic continuous flow methods precisely control liposome size and lamellarity, overcoming polydispersity issues common in traditional bulk preparation techniques for enhanced drug delivery applications.
Area of Science:
- Biotechnology
- Materials Science
- Chemical Engineering
Background:
- Traditional liposome preparation methods often result in polydisperse liposomes due to inhomogeneous formation conditions.
- This lack of control over size and lamellarity limits their efficacy in applications like drug delivery.
Purpose of the Study:
- To develop a microfluidic method for precise liposome size control.
- To overcome the limitations of traditional bulk phase liposome preparation.
Main Methods:
- Utilized a continuous two-phase flow microfluidic network for liposome formation.
- Manipulated liquid flow rates to precisely control liposome size from 100 to 300 nm.
Main Results:
- Achieved fine control over liposome size and polydispersity.
- Demonstrated homogeneous and controllable solvent-aqueous interfacial conditions at the microscale.
Conclusions:
- Microfluidic continuous flow offers a superior method for producing monodisperse liposomes.
- This technique enables precise control over liposome characteristics for advanced applications.
