Surface-Confined Metallization of Nanofibrous Networks via Selective Dissolution-Assisted Transfer Printing for Lightweight and Air-Permeable Soft Electronics

• • Achieved surface conductivity of 2 Ω cm and vertical insulativity of 10^11 Ω cm, a 10^11 anisotropy ratio that eliminates short-circuiting in ultrathin porous electronics, enabling safe vertical integration for multi-layer wearable devices. • • Solvent evaporation-induced interlocked fiber-fiber welding provides mechanical reinforcement, preserving structural integrity under repeated deformation, critical for durable on-skin applications. • • The transfer printing process maintains high gas permeability of the nanofibrous network, essential for breathable wearables to prevent skin irritation and ensure comfort during prolonged use. • • Demonstrated multifunctional devices: low-voltage wearable heaters with rapid thermal response, high-sensitive pressure sensors detecting subtle physiological signals, and ultralight temperature sensors with fast and reliable detection, validated in a dual-modal patch for intelligent grasping classification.