Abstract
This study contributes to the development of multifunctional shielding textiles effective against both electromagnetic interference (EMI) and ionizing radiation. Wool-blend fabrics were modified with Fe₃O₄ magnetic nanoparticles to create flexible composites with strong frequency-dependent absorption and reflection of electromagnetic fields, along with protection against alpha and beta particles. Magnetic susceptibility analysis revealed that, in some cases, radiation exposure unexpectedly enhanced the material’s magnetic properties, suggesting beneficial structural changes in the nanoparticles. These findings open new possibilities for adaptive “smart” textiles that not only withstand radiation but may improve under it—paving the way for use in wearable electronics, aerospace, and next-generation protective clothing.