Optical Pd2+ sensing by rhodamine hydrazone ligands: different stoichiometries in aqueous/nonaqueous environments
摘要:
A series of rhodamine spiro-leuco compounds have been developed as fluorescence-enhanced sensors for optical sensing of palladium ion (Pd2+). The initial rhodamine hydrazone derivatives, RPd1-a, RPd1-b, and RPd1-c, display a good coordination to Pd2+ inducing the spirolactam-open reaction with a significant fluorescence enhancement and color generation. Different stoichiometry results, 1:2 in EtOH/H2O and 1:1 in MeOH/DCM were observed for Pd2+/RPd1-c complexation. (c) 2013 Elsevier Ltd. All rights reserved.
A fluorescent hydrazone exchange probe of pyridoxal phosphate for the assessment of vitamin B6 status
作者:Yong Woong Jun、Marian Hebenbrock、Eric T. Kool
DOI:10.1039/c9cc08458d
日期:——
Abnormal vitamin B6 status, marked by deficient intracellular concentrations of pyridoxalphosphate (PLP), is classified as a direct biomarker based on its biomedical significance. However, there exist no direct methods for measuring vitamin B6 status in intact cells. Here we describe the development of a fluorogenic probe, RAB6, which shows remarkable selectivity for PLP among the B6 vitamers and