Liquid crystals in micron-scale droplets, shells and fibers

Area of Science:

• Soft Matter Physics
• Materials Science
• Nanotechnology

Background:

• Liquid crystals (LCs) traditionally studied in flat geometries for display applications.
• A shift towards exploring LCs confined within curved, soft, and flexible interfaces.
• Recent innovations enable precise control over LC structures in non-traditional geometries.

Purpose of the Study:

• To review the current understanding of LCs in spherical and cylindrical geometries.
• To summarize state-of-the-art production methods for these confined LC systems.
• To highlight novel application perspectives driven by soft matter physics and manufacturing advancements.

Main Methods:

• Microfluidic technology for high-throughput production of monodisperse LC droplets/shells.
• Electrospinning for encapsulating LCs in optically transparent polymeric cylinders.
• Advanced characterization techniques for analyzing complex director arrangements.

Main Results:

• Demonstration of exquisite monodispersity in LC microstructures.
• Enabling studies of confinement effects in nanoscale cylinders.
• Facilitating functionalization of textile fibers with LCs for wearable technology.
• Investigation of topological defects, chiral symmetry breaking, and phase transitions in curved LCs.

Conclusions:

• Confinement in curved geometries reveals intriguing soft matter physics phenomena.
• Novel manufacturing techniques pave the way for reproducible, scalable LC systems.
• Emerging applications span from advanced materials to seamless wearable devices.