Advances in Electrospun Polymeric Nanofibers

Dear Colleagues,

Polymeric nanofibers, typically produced by electrospinning and related techniques, are particularly well-suited fibrous materials, distinguished by their characteristics, which include a high aspect ratio and large specific surface area, stemming from their micro- to nanoscale diameters. Advances in processing and materials design have enabled tailored morphologies, allowing increasingly complex architectures (core–shell, hollow, multi-layer, aligned, multicomponent systems), which optimize performance and broadening the portfolio of applications. Non-woven nanofibers mats can offer high porosity, flexibility, and a tunable pore structure, high tortuosity, high permeability and a lightweight nature. Electrospun nanofibers can be produced using single or blended polymers, including synthetic, biodegradable, bio-based, and green polymers. To further enhance the functionality and effectiveness of nanofibers, various nanoparticles can be incorporated into the fibers. These nanoparticles can impart specific biological, mechanical, or physical properties and confer new functionalities to the fibers. Moreover, the fibrous mats can also be functionalized with molecular species or nanoparticles after the electrospinning process. This field is undergoing rapid evolution as researchers pursue sustainability, scale-up, and multifunctionality across polymer-based composite systems. As such, ongoing research is essential to refining manufacturing methods and targeting specific uses through precise control of processing parameters.

This Special Issue aims to bring together original research and reviews on recent advances and emerging trends that explore novel materials, architectures, and processing strategies capable of delivering enhanced or multifunctional properties of polymer and polymer-composite nanofibers. By showcasing advances at the intersection of materials science and nanotechnology, it aims to foster innovation and inspire new directions in this rapidly evolving field.

Prof. Dr. Claudia Merlini
Guest Editor

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