Background: In recent decades, nanofiber-based materials have been considered as one of
the top interesting fundamental materials for academic studies and practical applications. However, the
electrospinning, as the most popular method for manufacturing nanofibers, is plagued by its low
productivity. The first patent about electrospinning was emerged in 1934 and the needleless
electrospinning is regarded as one of the most promising methods to realize the high throughput of
Methods: This review compares the recent needleless spinning technologies from limited liquid
surfaces to free liquid surfaces for improvement of nanofiber throughput. The aim of this review is to
reveal the merits and drawbacks of recent methods in practical employment. The view focuses also on
the future concern of the needleless electrospinning.
Results: The current needleless electrospinning is featured with the properties: 1) high throughput; 2) lower
voltage supply for the stable spinning process; 3) narrow fiber diameter distribution, followed by the
drawbacks of poor long-term spinning process and limitation of a good bonding of low voltage supply.
Conclusion: This review provides an update on needleless electrospinning methods for high
throughput of nanofibers for industrial applications.