Bioinspired Trifunctional Patches for Adaptive and Energy‐Efficient Thermal Management

ABSTRACT Nature has long inspired the intelligent and efficient design of functional materials. However, seamlessly integrating multiple functions from distinct biological origins into a single material platform remains challenging. Here, we present a scalable, bioinspired adhesive patch that monolithically integrates three synergistic functionalities: dry adhesion, thermal insulation, and thermochromism. Each function can be independently tuned through a universal bifacial microstructure and controlled material composition, enabling multifunctional integration without compromising individual performance. The large‐area (∼22 in 2 ) patch simultaneously exhibits robust dry adhesion (∼3.8 N/cm 2 after 100 attachment–detachment cycles), low thermal conductivity (∼0.065 W/m·K), and programmable thermochromic response. When applied to indoor surfaces, it provides passive thermal insulation, real‐time ambient temperature sensing, and self‐adaptive visual transformation, offering both energy savings and interactive feedback. By integrating multiple power‐free functionalities in a single patch, this work lays the foundation for intelligent material systems for sustainable, on‐demand thermal management across diverse applications, including energy‐efficient passive houses.