The Accessibility of the Cell Wall in Scots Pine (<i>Pinus sylvestris</i> L.) Sapwood to Colloidal Fe₃O₄ Nanoparticles

This work presents a rapid and facile way to access the cell wall of wood with magnetic nanoparticles (NPs), providing insights into method modification prepare hybrid bio-based functional materials. Diffusion-driven infiltration Scots pine (Pinus sylvestris L.) sapwood was achieved using colloidal Fe3O4 nanoparticles. Optical microscopy, scanning electron microscopy/energy-dispersive X-ray spectroscopy, transmission powder diffraction analyses were used detect assess accessibility Fe3O4. The structural changes, filling tracheids (cell lumina), NP depth further evaluated by performing microcomputed tomography analysis. Fourier transform infrared spectroscopy chemical changes in induced interaction solvent. thermal stability Fe3O4-modified studied thermogravimetric Successful NPs confirmed measuring properties cross-sectioned layers modified wood. results indicate feasibility creating multiple functionalities that may lead many future applications, including nanomaterials desirable properties, devices, sensors.