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Flow-assembled chitosan membranes in microfluidics: recent advances and applications
Khanh L Ly1, Piao Hu, Le Hoang Phu Pham
1Department of Biomedical Engineering, The Catholic University of America, Washington, DC 20064, USA.
Journal of Materials Chemistry. B
|March 16, 2021
Summary
Researchers developed a biocompatible method for creating chitosan membranes within microfluidic devices using flow-assembly. This technique enables versatile applications in biology and tissue engineering by leveraging the unique properties of chitosan.
Area of Science:
- Biomaterials Science
- Microfluidics
- Chemical Engineering
Background:
- Membrane integration in microfluidics is crucial for chemical and bioengineering.
- Biocompatible fabrication methods using natural materials are needed for biomedical applications.
- The flow-assembly technique offers a biocompatible approach for in situ membrane preparation.
Purpose of the Study:
- To review advancements in flow-assembled chitosan membranes in microfluidics.
- To highlight the applications of chitosan membrane-integrated microfluidic platforms.
- To discuss future potential and optimizations of this technology.
Main Methods:
- Utilizing the flow-assembly technique for in situ membrane preparation.
- Employing interfacial reactions within microfluidic networks.
- Leveraging the properties of chitosan, a naturally abundant polysaccharide.
Main Results:
- Chitosan membranes assembled via flow-assembly are freestanding, robust, and semipermeable.
- These membranes exhibit excellent biocompatibility and affinity for biological components.
- The technique allows for flexible geometries and facile biological functionalization.
Conclusions:
- Flow-assembled chitosan membranes offer a versatile and biocompatible platform for microfluidic devices.
- These platforms show significant promise in biology, biochemistry, and drug delivery.
- Further optimization and development will expand their applications in tissue engineering and beyond.

