Microfluidics meets soft layer-by-layer films: selective cell growth in 3D polymer architectures

Area of Science:

• Biomaterials Science
• Microfluidics
• Cell Biology

Background:

• Cell culture on soft materials presents challenges in adhesion and spreading.
• Layer-by-layer (LbL) assembly offers versatile film fabrication but requires optimization for biological applications.
• Microfluidic platforms enable precise control over material patterning and biological interactions.

Purpose of the Study:

• To create micropatterned soft films using LbL assembly on a microfluidic platform.
• To address challenges in cell adhesion and spreading on soft LbL films.
• To explore the potential of these films for cell culture and triggered biomolecule release.

Main Methods:

• Fabrication of layer-by-layer (LbL) assembled soft films.
• Utilisation of a microfluidic platform for precise micropatterning.
• Assessment of cell adhesion, spreading, and reservoir properties of the developed films.

Main Results:

• Successfully generated micropatterns of LbL-assembled soft films.
• Demonstrated improved cell adhesion and spreading on the soft films.
• Showcased the potential for selective cell growth and reservoir applications.

Conclusions:

• Micropatterned LbL soft films fabricated via microfluidics offer a promising platform for controlled cell culture.
• The developed films overcome limitations in cell adhesion and spreading on soft materials.
• This approach opens avenues for advanced applications, including triggered release of biomolecules.