High-throughput production of kilogram-scale nanofibers by Kármán vortex solution blow spinning

Abstract

The interaction between gas flow and liquid flow, governed by fluid dynamic principles, is of substantial importance in both fundamental science and practical applications. For instance, a precisely designed gas shearing on liquid solution may lead to efficacious production of advanced nanomaterials. Here, we devised a needleless Kármán vortex solution blow spinning system that uses a roll-to-roll nylon thread to deliver spinning solution, coupled with vertically blowing airflow to draw high-quality nanofibers with large throughput. A wide variety of nanofibers including polymers, carbon, ceramics, and composites with tunable diameters were fabricated at ultrahigh rates. The system can be further upgraded from single thread to multiple parallel threads and to the meshes, boosting the production of nanofibers to kilogram scale without compromising their quality.

Electrospun nanofibers for bone regeneration: from biomimetic composition, structure to function

“…33 Recently, various methods have been developed to fabricate nanofibers, including electrospinning, self-assembly, phase separation, and so on. [34][35][36][37] Among them, the electrospinning technique has attracted particular research interest owing to its ability to process various materials (organic, inorganic, composites, etc. ), adjusting various properties (diameter, porosity, thickness, etc.)…”

Bubble Templated Flexible Ceramic Nanofiber Aerogels with Cascaded Resonant Cavities for High-Temperature Noise Absorption

“…Most of the current noise-absorbing aerogels are composed of polymer or carbon, which have good mechanical properties and flexibility at room temperature, but their structures are easy to collapse and destroy at high temperatures; common ceramic aerogels have good high-temperature resistance, but they suffer from inherent defects of high brittleness and ease of fracture. , Thus, almost all of them experience difficulty meeting the requirements of high-temperature noise-absorbing materials. Surprisingly, our FCNAs integrate the advantages of polymer and ceramic aerogels, which can also exhibit robust mechanical properties even at high temperatures.…”

Nanofiber Carriers of Therapeutic Load: Current Trends

“…Therefore, it is a promising technique that could be used for direct patient application as required in would healing or tissue engineering. Additionally, the method is well suited for scaling to industrial production requirements with easy adjustment for different processing configurations [ 75 , 76 , 77 ]. Despite the growing interest in this production method, there is still a limited number of publications related to drug delivering SBS NFs.…”