Bioinspired Stable Superhydrophobic Hierarchical Luminescence Textiles via Electrospinning and Electrospraying Synergism

ABSTRACT

Passive photoluminescent textiles hold great promise for emergency signaling in extreme environments, yet preventing the loss or quenching of luminescent particles under water, ice, and abrasion remains a major challenge. Inspired by the transparent skin protection mechanism of Aequorea victoria , we propose a periodic electrospinning‐ electrospraying synergistic strategy to fabricate a bioinspired superhydrophobic electrospun luminescence film (ELF) with a unique hierarchical “skeleton‐and‐flesh” composite structure. The transparent “skin” air cushion protective layer, endowed with stable superhydrophobicity, enables the ELF to persistently luminesce for over 180 s in both dark air and underwater environments. White and colored luminescence yarns are obtained via high‐temperature twisting and can be applied to patterned embroidery, encrypted optical messaging, and underwater warning displays. The woven centimeter‑scale textile exhibits significantly enhanced superhydrophobic stability, withstanding >120 min washing, 20 abrasion cycles, and anti‑icing at −28°C, showing potential for protective clothing in extreme cold wild environments. A proof‐of‐concept for a rescue experiment of a trapped underwater diver has been successfully demonstrated. This bioinspired strategy opens a new pathway for passive and durable optical signaling in harsh environments.