Production and characterization of liquid crystal/polyacrylonitrile nano-fibers by electrospinning method

Electrochemical Properties of Coumarin 500 Encapsulated in a Liquid Crystal Guided Electrospun Fiber Core and Their Supercapacitor Application

“…Also, scientists have investigated some potential applications of LC/polymer electrospun fibers such as gas sensors. − Single-needle electrospinning is a different version of electrospinning apart from the coaxial electrospinning method to generate phase-separated LC/polymer electrospun fibers. Not only the authors − but also other scientists have reported such fibers containing LCs were formed by a single-needle electrospinning of a precursor of liquid crystal and polymer, and these could be used in various applications. − …”

Stable Electrospinning of Core-Functionalized Coaxial Fibers Enabled by the Minimum-Energy Interface Given by Partial Core–Sheath Miscibility

“…Core–sheath fibers were also obtained using single-phase electrospinning, relying on radial phase separation during spinning. 23 , 28 , 32 , 35 , 36 Using the different variations of core–sheath fiber electrospinning, functional composite fibers have been produced for a variety of application scenarios, such as sustained release of drugs, 11 , 40 , 43 − 52 growth factor, 53 , 54 genes, 54 , 55 or live cells; 56 − 58 enhanced thermal insulation; 17 − 19 sensing of volatile organic compounds; 25 , 29 , 32 , 59 generation of wavy polymer structures; 60 or sound damping. 37 …”

“…While the mineral oil used as core liquid by Li and Xia was largely a sacrificial fluid, its presence ensuring tube-like fiber morphology, several subsequent electrospinning studies incorporated more precious liquids, e.g., phase change materials, − liquid crystals (LC), − and shear thickening fluids, to remain as a functional core inside the fibers. These specially selected core liquids enhance the composite fibers with dynamic and responsive performance that the sheath polymer itself is incapable of, while the coaxial fiber geometry provides a powerful means of encapsulating the liquidswhich are unspinnable on their ownin a flexible form factor with high surface-to-volume ratio.…”

“…Several modifications of the fundamental core–sheath electrospinning process have been explored, such as triple-phase coaxial electrospinning, enabled by adding a third nested capillary, which can yield fibers with an intermediate layer between the innermost core and the outermost sheath. − With noncoaxial electrospinning using multiple bundled capillaries inside an outer capillary that flows the sheath solution, fibers were produced with multiple core channels, consisting of identical or different , materials. Core–sheath fibers were also obtained using single-phase electrospinning, relying on radial phase separation during spinning. ,,,, Using the different variations of core–sheath fiber electrospinning, functional composite fibers have been produced for a variety of application scenarios, such as sustained release of drugs, ,,− growth factor, , genes, , or live cells; − enhanced thermal insulation; − sensing of volatile organic compounds; ,,, generation of wavy polymer structures; or sound damping …”

“…38−41 With noncoaxial electrospinning using multiple bundled capillaries inside an outer capillary that flows the sheath solution, fibers were produced with multiple core channels, consisting of identical 42 or different 18,27 Core−sheath fibers were also obtained using single-phase electrospinning, relying on radial phase separation during spinning. 23,28,32,35,36 Using the different variations of core− sheath fiber electrospinning, functional composite fibers have been produced for a variety of application scenarios, such as sustained release of drugs, 11,40,43−52 growth factor, 53,54 genes, 54,55 or live cells; 56−58 enhanced thermal insulation; 17−19 sensing of volatile organic compounds; 25,29,32,59 generation of wavy polymer structures; 60 or sound damping. 37 Despite the strong interest in core−sheath electrospinning, the answer to the critical question of whether the core and sheath liquids should be miscible or not remains elusive.…”