Emerging lignocellulose-based electromagnetic interference shielding materials towards multi-scenario applications

• • Lignocellulose-based EMI shielding materials achieve shielding effectiveness exceeding 20 dB in multiple studies, meeting commercial requirements for consumer electronics, while maintaining low density (<1 g/cm³) and flexibility, enabling integration into wearable and aerospace applications. • • In situ synthesized NiFe2O4 spinel ferrite in wood-based composites (J Alloys Compd, 2025) provides magnetic loss mechanisms, enhancing absorption-dominated shielding with total shielding effectiveness above 30 dB in X-band (8.2–12.4 GHz), as reported in reference 202. • • Conductive wood composites (Chem Mater, 2020) demonstrate high-performance structural EMI shielding with electrical conductivity up to 100 S/m and shielding effectiveness of 40 dB, while retaining mechanical strength suitable for load-bearing applications. • • Asymmetric multilayered MXene-AgNWs/cellulose nanofiber composite films (J Mater Sci Tech, 2022) exhibit shielding effectiveness exceeding 50 dB in X-band, with antibacterial properties and thermal management capability, addressing multifunctional requirements for smart electronics.