A visual and reversible assay for temperature using thioflavin T-doped lanthanide/nucleotide coordination polymers
A visual and reversible assay for temperature using thioflavin T-doped lanthanide/nucleotide coordination polymers
复制标题
使用硫代黄素 T 掺杂的镧系元素/核苷酸配位聚合物进行温度的可视化和可逆测定
作者：
Li Yan-Yun;Jiang Xiao-Qin;Zhang Min;Shi Guoyue
本工作通过硫磺素T（ThT）、铕离子（Eu ~（3+））和核苷酸（鸟苷一磷酸，GMP）在水溶液中的自组装，制备了一种ThT掺杂的镧系/核苷酸配位聚合物（ThT/Eu/GMP）。Eu/GMP配位聚合物对ThT表现出良好的自适应包结性能，可以通过限制效应增强ThT的荧光。此外，所制备的亲水性ThT/Eu/GMP配位聚合物在可见光照射下，在水溶液中具有温敏、可视和可逆的传感器性能。我们提出的设计具有成本效益，制备简单，无需化学修饰或荧光标记。
In this work, we prepared a type of thioflavin T (ThT)-doped lanthanide/nucleotide coordination polymer by the self-assembly of ThT, europium ions (Eu3+) and nucleotides (guanosine monophosphate, GMP) in aqueous solution (i.e. ThT/Eu/GMP). The Eu/GMP coordination polymers show excellent adaptive inclusion properties for ThT in a convenient one-step approach, which can readily enhance the fluorescence of ThT via the restricted effect. Moreover, the as-prepared hydrophilic ThT/Eu/GMP coordination polymers have the capability to act as a temperature-sensitive, visual and reversible sensor in aqueous solution under the irradiation of visible light. Our proposed design is cost-effective and simple to prepare without chemical modification or fluorescence labeling.