Bioinspired Skin-Like Fabric for Highly Efficient Directional Liquid Transport and UV Protection
摘要
Developing multifunctional textiles with directional liquid transport and UV protection is vital for outdoor comfort and skin health. Inspired by the structure of human skin, a bioinspired skin-like fabric was constructed via a combination of layer-by-layer self-assembly of CeO2 nanoparticles (CeO2 NPs) and selective polydimethylsiloxane (PDMS) spraying to build an asymmetric wettability gradient through the fabric thickness. This skin-like structure facilitates directional liquid transport (R = 327%), while preserving excellent water vapor transmission (9.27 kg m−2 d−1), thereby ensuring thermal–moisture comfort. The uniformly anchored CeO2 nanoparticles provide efficient UV shielding, with transmittance reduced below 5% (UVA) and 1% (UVB), and suppress photodegradation comparable to commercial sunscreens without organic filters or surfactants. This green and sustainable approach offers a robust platform for next-generation functional fabrics in summer sportswear and protective clothing.