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. 2020 Apr 1;5(14):8268-8271.
doi: 10.1021/acsomega.0c00575. eCollection 2020 Apr 14.

ac Bubble Electrospinning Technology for Preparation of Nanofibrous Mats

Jakub Erben  1 , Tomas Kalous  1 , Jiri Chvojka  1
Affiliations

ac Bubble Electrospinning Technology for Preparation of Nanofibrous Mats

Jakub Erben et al. ACS Omega. .

Abstract

This study deals with a new combination of alternating current (ac) electrospinning and bubble electrospinning. Research devoted to the combination of these two methods for the preparation of nanofibrous and microfibrous mats has been carried out. The design, construction, and description of bubble electrospinning are described in this article. The final morphologies of the fibrous layers produced by these methods have been compared with other well-known electrospinning methods. The bubble electrospinning and ac electrospinning aspire to become new technologies that could be utilized in various technical areas and tissue-engineering applications.

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Conflict of interest statement

The authors declare no competing financial interest.

Figures

Figure 1
Figure 1
Schemes of bubble and needle electrospinning: the overall setup of bubble electrospinning (A); the overall setup of needle electrospinning (B). (A) 1—Polymer solution inlet, 2—high-voltage inlet, 3—spinner, 4—air inlet, 5—polymer bubbles, 6—stream of nanofibers, 7—plate collector, and 8—nanofibrous layer. (B) 1—Polymer solution inlet, 2—high-voltage inlet, 3—spinner, 4—stream of nanofibers, 5—nanofibrous layer, and 6—plate collector.
Figure 2
Figure 2
Scheme of electrical circuit of ac electrospinning device: 1—output voltage controller—variable transformer, 2—ac power source—transformer, and 3—circular spinner.
Figure 3
Figure 3
Comparison of the fiber diameter: upper part—SEM images comparing the structure of nanofibrous layers; the scale bar is 5 μm; lower part—histogram comparing average fiber diameters produced by a different electrospinning technology.
Figure 4
Figure 4
Comparison of productivity: upper part—high-speed camera images capturing the generation of Taylor cones and subsequent polymer jets in the electric field represented by red dots; the scale bar is 1 mm; lower part—a histogram comparing the productivity values of individual technologies.
See this image and copyright information in PMC

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