An Acid-Inert Fluorescent Probe for the Detection of Nitrite
作者:Meiyi Cai、Xiaoyun Chai、Xuedong Wang、Ting Wang
DOI:10.1007/s10895-017-2071-9
日期:2017.7
The fluorescent detection of nitrite ions has been challenging owing to the poor acid-stability of typical fluorescent probes. Herein, an acid-inert rhodamine-based fluorescent probe has been developed for the fast detection of trace amount of nitrite ions with turn-on mode. The detection limit of nitrite ions was determined to be 9.4 nM (S/N = 3) and the linear range with high linear correlation was observed between 0.025 to 2.5 μM. A test paper method was developed for rapid visual detection of nitrite ions. Quantitative analysis of two real water samples also confirmed the reliability and sensitivity of the developed fluorescent method.
A general approach has been developed for the synthesis of spirolactonized Si-rhodamines (SiRBs). The alternative synthetic route provides a facile opportunity to access various SiRBs bearing ring-expanded scaffolds and substituents for conjugation. By click reaction, a near-infrared (NIR) mitochondrial tracker was prepared, displaying specific mitochondrial staining in cells.
A Lysosome-Compatible Near-Infrared Fluorescent Probe for Targeted Monitoring of Nitric Oxide
作者:Baogang Wang、Shichong Yu、Xiaoyun Chai、Tiejun Li、Qiuye Wu、Ting Wang
DOI:10.1002/chem.201505054
日期:2016.4.11
nitric oxide (NO) of lysosomes has motivated the development of a sophisticated fluorescent probe to monitor the distribution of this important biomolecule at the subcellular level in living cells. A near‐infrared (NIR) fluorescent Si‐rhodamine (SiRB)‐NO probe was designed based on the NO‐induced ring‐opening process of Si‐rhodamine. The probe exhibits fast chromogenic and fluorogenic responses, and high
A NIR fluorescent probe based on Si-rhodamine dithiobenzoic acid lactone was used to selectively visualize HOCl during GEN-induced nephrotoxicity for the first time.