Sulfonyl rhodamine hydrazide: A sensitive and selective chromogenic and fluorescent chemodosimeter for copper ion in aqueous media
摘要:
A novel sulfonyl rhodamine hydrazide chemodosimeter displayed highly selective and sensitive recognition of Cu2+ in aqueous media via colour change from colorless to pink The colour change that occurred as a result of complexation with Cu2+ can be attributed to spirolactam ring-opening and hydrolysis of the hydrazide unit to afford C I Acid Red 52 (Rhodamine B) in the presence of Cu2+ An analytical method was developed and successfully used for the determination of the copper content in a sample (C) 2010 Elsevier Ltd All rights reserved
Dithiolane linked thiorhodamine dimer for Hg2+ recognition in living cells
作者:Weimin Liu、Liwei Xu、Hongyan Zhang、Juanjuan You、Xiaoling Zhang、Ruilong Sheng、Huaping Li、Shikang Wu、Pengfei Wang
DOI:10.1039/b815956d
日期:——
Thiorhodamine-based chemodosimeter A, a disulfide linked dimer, was designed for Hg2+ recognition by virtue of the strong affinity of mercury for sulfur. Spectroscopic results reveal that chemodosimeter A exhibits real-time responses, and high sensitivity and selectivity for Hg2+ in comparison to other cations. These properties are mechanistically ascribed to the transfer from rhodamine spirolactam to the thiazoline-derived open-ring rhodamineviaHg2+ induced desulfurization. The in vitro recognition of Hg2+ in living cells pretreated with A was examined, showing that the concentration of Hg2+ that could be imaged reaches the safety limit for human beings.
Rhodamine B Piperazinoacetohydrazine: A Water-Soluble Spectroscopic Reagent for Pyruvic Acid Labeling
作者:Jia Jia、Ke Wang、Wen Shi、Suming Chen、Xiaohua Li、Huimin Ma
DOI:10.1002/chem.200902660
日期:2010.6.11
A new water‐soluble reagent, rhodamineBpiperazinoacetohydrazine (RBPH), with improved spectroscopic and reaction properties, has been developed and characterized for pyruvicacidlabeling. The reagent RBPH is designed and synthesized by using rhodamineB as a spectroscopic unit, and hydrazine as a carbonyl‐specific labeling unit; the two units are connected by a well‐chosen linker of piperazine,
Spiroguanidine rhodamines as fluorogenic probes for lysophosphatidic acid
作者:Lei Wang、Martha Sibrian-Vazquez、Jorge O. Escobedo、Jialu Wang、Richard G. Moore、Robert M. Strongin
DOI:10.1039/c4cc08818b
日期:——
Fluorescent indicators have been developed that enable the determination of lysophosphatidic acids via signaling that is independent of the size or degree of unsaturation of the fatty acid side chain.
荧光指示剂已经开发出来,可以用来确定溶血磷脂酸,这种信号独立于脂肪酸侧链的大小或不饱和程度。
A real time colorimetric ‘two in one’ kit for tracking ppb levels of uric acid and Hg2+ in live HeLa S3 cells and Hg2+ induced keto–enol tautomerism
A TBET based 'turn-on' fluorescent reagent with high Stokes shifts, exhibits selective and colorimetric detection of biologically important uric acid as well as toxic Hg2+.