Electrospinning Equipment for Research| Latest research progress on antibacterialproperties of chitosan-based nanofibers 2025-06-11
Chitosan is widely available and has excellent biocompatibility, biodegradability, non-toxicity, antibacterial properties, high safety, and is environmentally friendly. Due to the presence of amino groups in chitosan, chitosan dissolved under acidic conditions is easily protonated into polyelectrolytes. During electrospinning, the repulsive force between polymer ionic groups increases, easily forming bead-like particles, and the polymer is difficult to eject from the needle. Therefore, the electrospinning solution containing chitosan has poor spinnability. To this end, spinning aids such as polyvinyl alcohol (PVA) and polyethylene oxide (PEO) are often added. They interact with chitosan through hydrogen bonds, reducing electrostatic repulsion and surface tension, and improving the spinnability of the chitosan spinning solution.