Fabrication of micro/nano porous cellulose structure with UV-pulsed laser and its Molecular Dynamics simulation

Cellulose, the most abundant natural polymer, has garnered significant attention in various applications due to its biodegradability, biocompatibility, and mechanical properties. Porous cellulose structures are particularly crucial in applications like filters, sensors, and biomedical materials due to their high surface area and adsorption capabilities. In this study, cellulose is thinly coated on a polyethylene (PE) film and irradiated with a 355 nm UV pulsed laser to transform its structure into a microporous form. Additionally, molecular dynamics simulations are employed to investigate the structural changes of cellulose at the molecular level during laser irradiation. The result of this study reveals trends in structural changes influenced by laser parameters. This integrated approach enhances understanding of cellulose microstructure modification, paving the way for tailored polymer films with micro-nanostructures for advanced applications.