A novel facilely prepared rhodamine-based Hg2+ fluorescent probe with three thiourea receptors
-
Add time:08/05/2019 Source:sciencedirect.com
A novel rhodamine-based turn-on fluorescent probe with three thiourea receptors was designed, synthesized and fully characterized. In acetonitrile/4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid buffer (9/1, v/v, pH = 7.21), the probe showed high selectivity and sensitivity to Hg2+ with a 20-fold fluorescence enhancement at 583 nm. The increase in fluorescence intensity was linearly proportional to the concentration of Hg2+ in the range of 25–200 μM with a detection limit of 3.04 × 10−7 M. The probe could work in a nearly neutral pH span of 6.41–8.33 and exhibited excellent interference immunity. Real sample assay showed the probe had good practicability. The results from Job's plot, reversibility experiment, mass and infrared spectra analysis suggested a 1:3 probe/Hg2+ complex with an association constant of 9.88 × 1011 M−3 and a new interaction way between the probe and Hg2+.
We also recommend Trading Suppliers and Manufacturers of 1-Phenyl-3-(2-hydroxyethyl)thiourea (cas 102-12-5). Pls Click Website Link as below: cas 102-12-5 suppliers
Prev:Design, synthesis and preliminary biological evaluation of new [1,2,3]triazolo[4,5-d]pyrimidine/thiourea hybrids as antiproliferative agents
Next:Two-pot synthesis of N,N-disubstituted 4H-3,1-benzothiazin-2-amines from aryl(2-isothiocyanatophenyl)methanones and secondary amines) - 【Back】【Close 】【Print】【Add to favorite 】
- Related Information
- Synthesis and characterisation of mixed-ligand platinum(II)–sulfoxide complexes, [PtCl(DMSO)(L)], for potential use as chemotherapeutic agents (HL=N,N-dialkyl-N′-(3-R-benzoyl)thiourea)08/11/2019
- A convenient method for the synthesis of 2-amino substituted aza-heterocycles from N,N′-disubstituted thioureas using TsCl/NaOH08/10/2019
- Hydrophilic platinum complexes of N-2-hydroxyethyl- and N,N-di(2-hydroxyethyl)-N′-benzoylthiourea ligands. Crystal and molecular structure of N,N-di(2-hydroxyethyl)-N′-benzoythiourea08/09/2019
- A single thiourea group is not enough to get stable thiourea lipoplexes08/08/2019
- One-pot synthesis of 2-phenylaminothiazolines from N-2-hydroxyethyl)-N′-phenylthioureas08/07/2019
- Two-pot synthesis of N,N-disubstituted 4H-3,1-benzothiazin-2-amines from aryl(2-isothiocyanatophenyl)methanones and secondary amines08/06/2019
- Design, synthesis and preliminary biological evaluation of new [1,2,3]triazolo[4,5-d]pyrimidine/thiourea hybrids as antiproliferative agents08/04/2019
- Efficient synthesis of 2-methylaminothiazolines via Mitsunobu reaction of N-(2-hydroxyethyl)-N′-methyl-thioureas08/03/2019
