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Updated: May 11, 2026

Microfluidic Fabrication of Core-Shell Microcapsules carrying Human Pluripotent Stem Cell Spheroids
Published on: October 13, 2021
Biodegradable core-shell carriers for simultaneous encapsulation of synergistic actives
Maike Windbergs1, Yuanjin Zhao, John Heyman
1School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA. m.windbergs@mx.uni-saarland.de
Researchers developed a novel biodegradable core-shell carrier for efficiently encapsulating and releasing synergistic drug combinations. This solvent-free microfluidic technology precisely controls particle properties for improved cancer therapy delivery.
Area of Science:
- Biomaterials Science
- Nanotechnology
- Drug Delivery Systems
Background:
- Simultaneous encapsulation of multiple synergistic drugs is crucial for effective combination therapy.
- Existing carrier systems struggle with efficient encapsulation and controlled release of drugs in precise ratios.
Purpose of the Study:
- To develop a novel biodegradable core-shell carrier system for efficient co-delivery of hydrophilic and hydrophobic drugs.
- To demonstrate the controlled release and therapeutic efficacy of synergistic anticancer drugs encapsulated in the novel carrier.
Main Methods:
- Fabrication of a biodegradable core-shell carrier using a one-step, solvent-free microfluidic process.
- Encapsulation of hydrophilic doxorubicin hydrochloride in the aqueous core and hydrophobic paclitaxel in the solid shell.
- Characterization of particle size, composition, and drug loading efficiency; assessment of in vitro drug release and efficacy in cancer cell lines.
Main Results:
- Achieved high encapsulation efficiency for both hydrophilic and hydrophobic drugs within the core-shell structure.
- Demonstrated precise control over particle size and composition.
- Showcased simultaneous controlled release of synergistic anticancer drugs, leading to significant efficacy in cancer-derived cell lines.
- Developed a stable, storable powder formulation of drug-loaded particles.
Conclusions:
- The novel biodegradable core-shell carrier system offers an efficient and precise platform for co-delivering synergistic drug combinations.
- The solvent-free microfluidic fabrication method provides a scalable and versatile approach for advanced drug delivery applications.
- This technology holds significant potential for improving combination cancer therapies and encapsulating other active ingredients.
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