Institute of Environmental Science, Shanxi University, Taiyuan, 030006, China.
School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China.
Luminescence. 2019 Nov;34(7):707-714. doi: 10.1002/bio.3656. Epub 2019 Jul 11.
Spiropyran (SP) and its derivatives operate between their ring opening and closing forms as a versatile molecular platform for the fluorescence detection of cations and anions, using a colour change for signalling. A functionalized SP fluorescence probe, L, was prepared and characterized. Probe L can detect Ca with a fluorescence 'turn-on' response in ethanol solution. It selectively binds Ca to form a 1:1 ligand/metal complex, which produced a new emission band centred at 604 nm. The sensing result was clearly observed by the solution colour change from colourless to pink under visible light, and from blue to red under ultraviolet light. The detection limit was calculated to be 4.53 × 10 M for Ca . The probe provides another possibility that SP-based derivatives could be used for the development and detection of metal ions in environmental and physiological systems.
螺吡喃（SP）及其衍生物在其开环和闭环形式之间作为一个多功能的分子平台，用于阳离子和阴离子的荧光检测，通过颜色变化进行信号传递。合成了一种功能化的 SP 荧光探针 L，并对其进行了表征。探针 L 可以在乙醇溶液中通过荧光“开启”响应检测 Ca 。它选择性地与 Ca 结合形成 1:1 的配体/金属配合物，产生一个新的发射带，中心位于 604nm。通过可见光下溶液颜色从无色变为粉红色，以及紫外光下从蓝色变为红色，可明显观察到传感结果。对 Ca 的检测限计算为 4.53×10 M。该探针为 SP 衍生物在环境和生理系统中金属离子的开发和检测提供了另一种可能性。
