Facile Fabrication of Antibacterial 3D Fibrous Sponge via In Situ Protonation‐Induced Direct Electrospinning
Year: 2025
Type: article
Abstract: A versatile, straightforward approach for direct fabrication of three‐dimensional (3D) nanofibrous sponges via electrospinning is reported. The fabrication of porous 3D nanofibrous sponges is facilitated due to the protonation of dimethylamino ethyl (DMAE) groups in Eudragit E100 (EE). The generated 3D sponges are characterized by microscopy, thermal analysis, light scattering, and contact angle measurements to reveal their physicochemical properties. Additionally, antibacterial properties are confirmed via a colony‐forming unit assay. Microscopy analysis demonstrated that the obtained nanofibers possessed uniform conformation without beads, and their overall diameter varies depending on the fraction of the blend composition. The protonation of DMAE groups is investigated via infrared spectroscopy and further confirmed via zeta potential measurements. The charged electrospun 3D sponges exhibited significant antibacterial properties, effectively combating E. coli even at a diluted extract of samples. Owing to their morphology, electrostatically charged surface, and significant antibacterial properties, these 3D nanofibrous sponges present themselves as an effective material for integration in filtering membranes or cartridges, which may minimize harmful substances suspended in the air.
Source: Advanced Materials Interfaces
Language: English
Subfield: Biomaterials
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,100
Funder: Alexander von Humboldt-Stiftung
Award: G1950243523
OpenAlex ID: W4410709546