Thermoresponsive Hydrogels for the Construction of Smart Windows, Sensors, and Actuators

作者：Keunhyuk Ryu, Gang Li, Keyi Zhang, Jianguo Guan, Yi Long, Zhili Dong · 发表于：Accounts of Materials Research · 年份：2025 · DOI：10.1021/accountsmr.5c00007 · 被引用次数：33 · 研究领域：Advanced Sensor and Energy Harvesting Materials、Advanced Materials and Mechanics、Aerogels and thermal insulation

High Resolution Image Download MS PowerPoint Slide Conspectus Thermoresponsive hydrogels possess an inherent capacity for autonomous adjustment of their properties in response to temperature variations, eliminating the requirement for external power sources and rendering them suitable for diverse environmental applications. Our discourse commences by establishing a foundational comprehension of the two principal categories governing thermal transitions in thermoresponsive hydrogels, namely, the Lower Critical Solution Temperature (LCST) and the Upper Critical Solution Temperature (UCST). These thermal transitions, LCST and UCST, are pivotal determinants of the physical characteristics and reactivity of hydrogels, as they regulate the response and deformations of temperature-sensitive hydrogels across varying environmental conditions. Moreover, the integration of these hydrogels within the photonic crystal (PC) structures has emerged as a notable approach to modulating dielectric constants or lattice configurations, leading to color change. Due to these remarkable properties, thermoresponsive hydrogels have garnered significant research attention for various smart material applications, including energy-saving technologies, environmental and biometric sensing, and control systems. Despite these distinctive features driving extensive research in smart materials areas, challenges persist due to the inherent water-rich composition and compromised mechanical integrity of hydrogels...