费斯特共振能量转移
罗丹明
化学
荧光
紧身衣
光化学
哌嗪
水溶液中的金属离子
罗丹明B
金属
光催化
生物化学
有机化学
催化作用
量子力学
物理
作者
Fung‐Kit Tang,Yanyan Chen,Daniel Nnaemaka Tritton,Zongwei Cai,Ken Cham‐Fai Leung
标识
DOI:10.1002/asia.202300477
摘要
A class of rhodamine-based fluorescent sensors for the selective and sensitive detection of Pd2+ metal ions in aqueous media has been developed. A rhodamine-based sensor PMS and a rhodamine-BODIPY Förster resonance energy transfer (FRET)-pair sensor PRS have been incorporated with a piperazine linker and an O-N-S-N podand ligand for specific recognition of Pd2+ ion. Both probes displayed colorimetric and fluorescent ratiometric changes when exposed to Pd2+ , due to their spirolactam rings opening and restoring rhodamine conjugation. PRS is highly selective to Pd2+ over 22 other metal ions, showing a 0.6-fold ratiometric difference at I600nm /I515nm . Additionally, the lactam ring in Pd2+ coordinated PRS-Pd could be switched back to the closed form in the presence of various thiols, providing a "red-green traffic light" detection mechanism between red and green emission. Furthermore, PRS showed excellent cell viability and was successfully employed to image Pd2+ and the PRS-Pd complex ensemble could interchangeably detect biothiols including glutathione (GSH) in A549 human lung cancer cells.
科研通智能强力驱动
Strongly Powered by AbleSci AI