Novel Handheld Electrospinning Device with Nanofiber Concentrator: Design, Performance and Applications

In this study, a novel handheld battery-operated electrospinning device equipped with a nanofiber concentrator was developed to enhance target area control during nanofiber deposition. The device manipulates the electric field using the dielectric properties of a polymeric tunnel, enabling precise deposition of nanofibers with specific patterns. Low molecular weight chitosan/poly(vinyl alcohol) (CS/PVA) nanofibers with an average diameter of 65 ± 9 nm were successfully synthesized. Finite Element Analysis (FEA) simulations demonstrated the effectiveness of the nanofiber concentrator in stabilizing the whipping jet, reducing deposition area, and increasing accuracy. Experimental results highlighted the impact of parameters such as high voltage, collector distance, flow rate, and concentrator design on nanofiber morphology and deposition. The developed device produced uniform nanofibers with minimized defects, optimal at a needle-collector distance of 10–15 cm. Applications of this innovative device include wound dressing, tissue engineering, food packaging, and cosmetics, with potential for direct-writing and 3D printing through modular concentrator designs. The lightweight, energy-efficient design also increases practicality for portable and in-situ applications..

Amirreza Ojagh, Ali Bakhshi, Novel Handheld Electrospinning Device with Nanofiber Concentrator: Design, Performance and Applications, Polymer (2025), 128206. DOI: https://doi.org/10.1016/j.polymer.2025.128206

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