作者:Jin Hoon Kim、In Hong Hwang、Seung Pyo Jang、Juhye Kang、Sumi Kim、Insup Noh、Youngmee Kim、Cheal Kim、Roger G. Harrison
DOI:10.1039/c3dt33024a
日期:——
Zinc sensors based on 2,3-dipicolylamine (DPA) and quinoline have been synthesized. They fluoresced in the presence of Zn2+ and remained fluorescent when other metal ions were present. Fluorescence enhancement of the sensors was not seen for most other metal ions. In vitro studies with fibroblasts showed fluorescence when sensor and Zn2+ were present. As seen by single crystal X-ray analysis, four nitrogens from the sensor bind to Zn2+. These new sensors have lower binding constants than the pentadentate sensors based on 2,2-DPA.
我们合成了基于 2,3-二二甲胺(DPA)和喹啉的锌传感器。它们在 Zn2+ 存在时发出荧光,而在其他金属离子存在时则保持荧光。对于大多数其他金属离子,传感器的荧光增强效果并不明显。对成纤维细胞进行的体外研究显示,当传感器和 Zn2+ 同时存在时,成纤维细胞会发出荧光。单晶 X 射线分析显示,传感器的四个硝基与 Zn2+ 结合。这些新型传感器的结合常数低于基于 2,2-DPA 的五价传感器。