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Layer-by-layer assembled biopolymer microcapsule with separate layer cavities generated by gas-liquid microfluidic
Yifeng Wang1, Jing Zhou1, Xuecheng Guo1
1School of Material Science and Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China.
Materials Science & Engineering. C, Materials for Biological Applications
|September 10, 2017
Summary
Researchers developed a novel microfluidic method to create layer-by-layer (LbL) biopolymer microcapsules. These capsules feature distinct cavities for encapsulating various components, showing promise for biomedical applications like drug delivery and sensing.
Area of Science:
- Biotechnology
- Materials Science
- Chemical Engineering
Background:
- Layer-by-layer (LbL) assembly is a versatile technique for fabricating multilayered structures.
- Microfluidic approaches offer precise control over microscale fabrication.
- Developing efficient methods for creating functional microcapsules is crucial for advanced applications.
Purpose of the Study:
- To develop a novel, convenient gas-liquid microfluidic approach for fabricating layer-by-layer (LbL) assembled biopolymer microcapsules.
- To create microcapsules with distinct layer cavities capable of encapsulating various components.
- To explore the potential of these microcapsules in biomedical applications such as sensing and drug delivery.
Main Methods:
- Utilized a gas-liquid microfluidic system for layer-by-layer (LbL) assembly of biopolymer microcapsules.
- Fabricated polyelectrolyte multilayer capsules with internal cavities in mild aqueous environments at room temperature.
- Demonstrated encapsulation of diverse components including drugs, proteins, fluorescent dyes, and nanoparticles within separate layer cavities.
Main Results:
- Successfully generated LbL-assembled biopolymer microcapsules with distinct layer cavities using a novel microfluidic method.
- The approach avoids the need for organic solvents, emulsifying agents, or sacrificial templates.
- The fabricated microcapsules exhibited potential as colorimetric sensors and demonstrated interesting release behaviors.
Conclusions:
- The novel gas-liquid microfluidic approach provides a straightforward and efficient method for producing LbL-assembled biopolymer microcapsules.
- These microcapsules offer a promising platform for biomedical applications, including targeted delivery, controlled release, and bio-detection.
- The ability to encapsulate multiple components in separate cavities enhances their versatility for complex biological tasks.
