Special Issue "Nanoscale Flow and Nanomaterial Fabrication"

Submission Deadline: 31 December 2020 (closed)
Guest Editors
Jihuan He, Soochow University, China

Summary

Nanoscale fluid mechanics plays an important role in nanomaterial fabrication in electrospinning and 3-D printing technology. This special issue focuses on the spinning, printing or writing process in a view of nanoscale flow to control nanoparticles or molecules’ distribution and orientation in the fabricated objects. Nature-inspired fabrication technologies are specially emphasized.


Keywords
Nanofiber; electrospinning; bubble electrospinning; two-scale fractal calculus; two-scale thermodynamics; nanoscale flow; nanofibers; nano/micro device; 3-d printing; writing; functional materials.

Published Papers
  • Needleless Electrospinning: Reciprocation vs. Rotation
  • Abstract Needleless electrospinning is a versatile method to produce nanofibers. In particular, the rotary version of this technique has enjoyed widespread use because there is no need to clean the spinneret. The rotation speed is limited by the potential deviation of the jet due to the centrifugal force. Other limitations are due to the fast volatilization of the solvent from the opened spinning system. In order to overcome these drawbacks, here a novel reciprocating system based on a moving spinning-plate is proposed. The spinning process is implemented in a half-closed system with the spinning-plate immersed in the solution tank. When the… More
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  • Macromolecule’s Orientation in a Nanofiber by Bubble Electrospinning
  • Abstract In the search for sustainable alternatives to harmful synthetic fibers, an increasing amount of research focuses on biomimicry and natural fibers. Sea silk is an exceptional textile material. It is a kind of natural silk produced using the long silky filaments secreted by a specific bivalve mollusk (Pinna nobilis); now at edge of extinction. This paper suggests a simple but effective way to prepare artificial sea silk from Mytilus edulis. A sea silk solution is prepared using a Mytilus edulis protein, and a polyvinyl alcohol (PVA) solution is mixed with the sea silk solution in order to produce artificial sea… More
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  • Preparation and Characterization of Electrospun Polylactic Acid Micro/Nanofibers under Different Solvent Conditions
  • Abstract Electrospinning is a versatile and popular method for the fabrication of ultrafine fibers and many parameters in electrospinning can be adjusted when ideal micro/nanofibers are required. In particular, the selection of a proper solvent condition is a fundamental and crucial step to produce electrospun ultrafine fibers. In this study, a commonly used biomaterial, polylactic acid (PLA), was dissolved in 7 different solvents and PLA micro/nanofibers were prepared by electrospinning. The morphology, porosity, mechanical property and static contact angle were characterized to determine the quality of the obtained product. The results show that different solvent conditions have a significant effect on… More
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