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Microfluidic synthesis of cell-type-specific artificial extracellular matrix hydrogels
Simone Allazetta1, Tanja C Hausherr, Matthias P Lutolf
1Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
Biomacromolecules
|February 27, 2013
Summary
Droplet microfluidics enables high-throughput synthesis of precisely controlled poly(ethylene glycol) (PEG) microgels. These microgels can be modified with biomolecules for advanced stem cell culture and manipulation in bioreactors.
Area of Science:
- Biomaterials Science
- Microfluidics
- Tissue Engineering
Background:
- Precise control over hydrogel properties is crucial for cell culture applications.
- Microfluidic technologies offer potential for high-throughput synthesis of microscale materials.
Purpose of the Study:
- To develop a droplet microfluidic method for synthesizing poly(ethylene glycol) (PEG) microgels with controlled dimensions and properties.
- To functionalize these PEG microgels with biomolecules for enhanced cell interactions.
- To demonstrate the utility of these modified microgels in stem cell culture and manipulation.
Main Methods:
- Utilized droplet microfluidics for high-throughput synthesis of PEG microgels via Michael-type addition.
- Employed a versatile chemical modification strategy to tether biomolecules to the microgel surface.
- Investigated the impact of modified microgels on (stem) cell behavior in bioreactor cultures.
Main Results:
- Achieved precise control over microgel size and physicochemical characteristics.
- Successfully tethered various biomolecules to the PEG microgels, tuning their bioactivity.
- Demonstrated successful culture and manipulation of (stem) cell types using the functionalized microgels.
Conclusions:
- Droplet microfluidics is an effective platform for producing well-defined PEG microgels.
- Biomolecule tethering provides a versatile approach to engineer microgel bioactivity for cell applications.
- This technology holds promise for advanced cell culture and manipulation in bioreactors.
