Chirally Reversed Graphene Oxide Liquid Crystals.

Area of Science:

• Materials Science
• Nanotechnology
• Soft Matter Physics

Background:

• Colloidal liquid crystals (LCs) from nanoparticles offer potential for novel structures but suffer from instability due to fluidity.
• Achieving ordered architectures and stable configurations in colloidal LCs remains a significant challenge.

Purpose of the Study:

• To present an innovative synchronous nanofluidic rectification (SNR) technique for fabricating ultralong graphene oxide liquid crystal (GOLC) fibers.
• To create GOLC fibers with hierarchical core-skin architectures and stable topological configurations.

Main Methods:

• The synchronous nanofluidic rectification (SNR) technique utilizes horizontal polymer flow for GO sheet alignment and chiral-reversing.
• In situ hydrogel skin formation protects the GOLC structure from environmental degradation.
• The process ensures synchronous assembly of GO sheets and hydrogel skin formation.

Main Results:

• Ultralong GOLC fibers with hierarchical core-skin architectures were successfully generated.
• The SNR technique yielded fibers with stable topological configurations, high mechanical strength, and flexibility.
• Dried fibers maintained smooth surfaces and ordered internal structures.

Conclusions:

• The SNR technique provides a scalable method for manufacturing uniform, robust, and anisotropic fiber-shaped functional materials.
• The developed GOLC fibers exhibit potential for optical sensing and recognition applications due to their polarization properties.
• This work opens new avenues for creating complex, fiber-based functional materials.