Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, China.
Luminescence. 2021 May;36(3):691-697. doi: 10.1002/bio.3988. Epub 2020 Dec 20.
A novel diarylethene-based ratiometric fluorescent sensor with full symmetric structure, 1o, was designed and synthesized successfully. 1o could identify lysine (Lys) with high selectivity and sensitivity and the fluorescence emission peak was red shifted 85 nm upon addition of Lys, which could realize ratio recognition. It exhibited excellent anti-interference performance in the presence of various amino acids in CH CN/H O (7/3, v/v) solution. Moreover, the limit of detection of 1o to Lys could reach 0.019 μM based on a good linear range of 0-40 μM. In addition, the fluorescence emission intensity of 1o could be turned off/on by ultraviolet/visible light due to the special structure of diarylethene. A logic circuit was designed with three inputs. The ratiometric fluorescent sensor 1o could be as a new tool and provide a new method for detection of Lys.
一种具有全对称结构的新型二芳基乙烯比率型荧光传感器 1o 被成功设计和合成。1o 对赖氨酸（Lys）具有高选择性和灵敏度，并且加入 Lys 后荧光发射峰红移 85nm，可以实现比率识别。在 CH3CN/H2O（7/3，v/v）溶液中，即使存在各种氨基酸，它也表现出优异的抗干扰性能。此外，基于 0-40μM 范围内良好的线性范围，1o 对 Lys 的检测限可达 0.019μM。此外，由于二芳基乙烯的特殊结构，1o 的荧光发射强度可以通过紫外/可见光打开/关闭。设计了一个具有三个输入的逻辑电路。比率型荧光传感器 1o 可以作为一种新的工具，为 Lys 的检测提供一种新的方法。
