Traditional fluorescent thermometers are often responsive to stimuli such as acid, moisture, solvents, light irradiation, and other stimuli, thereby limiting their practical applications. This is further intensified by the growing complexity of unconventional scenarios with various interfering stimuli. Here, we develop a versatile fluorescent thermometer featuring fluorophore PTF1 dispersed in a polymer matrix at a low loading. At room temperature, the rigidity of polymer network is high, rendering PTF1 a yellow fluorescence due to its antirigidochromic behavior. Increasing the temperature reduces the rigidity of PTF1, effectively restoring the intrinsic blue fluorescence of PTF1. Benefiting from the excellent encapsulation effect of polymer matrices, this thermometer exhibits an exceptional anti-interference ability. Further, it could be shaped into various forms, enabling temperature measurements in diverse scenarios. Moreover, it could be customized to irreversible working modes, rendering the temperature history with recording features. This work offers a design of a fluorescent thermometer with advanced features unattainable with conventional fluorophores.

中文翻译：

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基于聚合物基质中的抗刚性变色荧光团的多功能比例荧光温度计，具有卓越的抗干扰能力

传统的荧光温度计往往对酸、水分、溶剂、光照射等刺激敏感，从而限制了其实际应用。由于各种干扰刺激的非常规场景日益复杂，这种情况进一​​步加剧。在这里，我们开发了一种多功能荧光温度计，其荧光团 PTF1 以低负载分散在聚合物基质中。在室温下，聚合物网络的刚性较高，PTF1由于其抗刚性变色行为而呈现黄色荧光。升高温度降低了PTF1的刚性，有效恢复了PTF1固有的蓝色荧光。得益于聚合物基体优异的封装效果，该温度计表现出优异的抗干扰能力。此外，它可以被塑造成各种形式，从而能够在不同的场景下进行温度测量。此外，它可以定制为不可逆的工作模式，通过记录功能呈现温度历史。这项工作提供了一种荧光温度计的设计，具有传统荧光团无法实现的先进功能。