Hydrogel Thermostat Inspired by Photoprotective Foliage Using Latent and Radiative Heat Control (Adv. Mater. 17/2026)

Key Points

• The aim is to develop a thermostat that mimics the thermal regulation of Populus alba leaves using a hydrogel system.
• Design of a radiative-latent thermostat incorporating principles from Populus alba leaves.
• Evaluation of solar reflectance and infrared emissivity of the hydrogel.
• Assessment of water sorption and desorption capabilities.
• The hydrogel demonstrates dynamic solar reflectance and high infrared emissivity.
• It exhibits reversible water sorption-desorption, allowing for adaptive thermal regulation.
• Performance is effective across varying outdoor environments.