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Here, we report interfacially bonded carbon nanotube film\/amorphous alumina (CNTF\/Al\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>3<\/jats:sub>\n                    ) stratified films inspired by the hard\u2010soft\u2010hard architecture of the scaly\u2010foot snail shell. Amorphous Al\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>3<\/jats:sub>\n                    layers are deposited on ultralight CNTF to form asymmetric and symmetric rigid\u2010flexible configurations with possible chemically coupled Al\u2010O\u2010C interfaces. Under laser\u2010induced microparticle impact, the hard\u2010soft\u2010hard film achieves a specific energy absorption of 5.24 \u00b1 0.21\u00a0MJ kg\n                    <jats:sup>\u22121<\/jats:sup>\n                    at approximately 320 m s\n                    <jats:sup>\u22121<\/jats:sup>\n                    . Post\u2010impact microscopy suggests that ceramic fragmentation, carbon nanotube network deformation, and interfacial pull\u2010out or fracture contribute to energy dissipation. A possible contribution from layer\u2010dependent load redistribution is proposed. The same architecture also produces dye\u2010free structural colors, rapid tunable Joule heating, and stable X\u2010band electromagnetic interference shielding of 38\u201345\u00a0dB. This biomimetic design offers a lightweight platform for impact\u2010resistant, optically camouflaged, multifunctional personal protection.\n                  <\/jats:p>","DOI":"10.1002\/smll.76218","type":"journal-article","created":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T13:28:17Z","timestamp":1791984497000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Scaly\u2010Foot\u2010Snail\u2010Inspired Ultralight Carbon Nanotube\/Alumina Stratified Films for High\u2010Rate Impact Protection and Optical\u2010Thermal\u2010Electromagnetic Multifunctionality"],"prefix":"10.1002","author":[{"given":"Guitao","family":"Hu","sequence":"first","affiliation":[{"name":"State Key Laboratory of Advanced Refractories Shanghai University  Shanghai China"},{"name":"Key Laboratory of Multifunctional Nanomaterials and Smart Systems Suzhou Institute of Nano\u2010Tech and Nano\u2010Bionics Chinese Academy of Sciences  Suzhou 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