So far, very few numbers of chemosensors for Cr ion have been reported. However, the main drawback of reported receptors are the lack of selectivity and other trivalent cations such as Fe, Al and anions like F and OAc frequently interfere with such assays. This paper present the synthesis, characterization & sensor studies of Schiff base containing naphthalene moiety which selectively detect Cr ion by chemodosimetric approach. Using FT-IR, H NMR, C NMR and ESI mass spectroscopic techniques the probe was characterized. This receptor exhibit more selectivity and sensitivity towards Cr than other divalent and trivalent cations like Mn, Zn, Co, Ni, Cd, Cu, Hg, Fe, and Al ions. After the addition of chromium ion the receptor get change from yellow to colorless in aqueous medium. But no color change was observed on the addition of other metal ions. Using UV-Vis and PL studies, it was confirmed that the selective hydrolysis of imine group of receptor by Cr ions takes place with high fluorescence enhancement that is corresponding to 1-naphthylamine. Receptor acts as selective chemodosimeter for Cr ions with 2:1 stoichiometry and micro molar detection limit. This chemodosimetric approach was applied successfully for bio-imaging of HeLa cells.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s10895-018-2228-1 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
F NMR Probes: Molecular Logic Material Implications for the Anion Discrimination and Chemodosimetric Approach for Selective Detection of HO.
Anal Chem
July 2024
Analytical and Environmental Science Division and Centralized Instrument Facility, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Bhavnagar 364002, Gujarat, India.
Detection and discrimination of similar solvation energies of bioanalytes are vital in medical and practical applications. Currently, various advanced techniques are equipped to recognize these crucial bioanalytes. Each strategy has its own benefits and limitations.
View Article and Find Full Text PDFViscosity-sensitive and AIE-active bimodal fluorescent probe for the selective detection of OCl and Cu: a dual sensing approach DFT and biological studies using green gram seeds.
Anal Methods
February 2024
Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bangalore, Karnataka, 560029, India.
A novel dual-mode viscosity-sensitive and AIE-active fluorescent chemosensor based on the naphthalene coupled pyrene (NCP) moiety was designed and synthesized for the selective detection of OCl and Cu. In non-viscous media, NCP exhibited weak fluorescence; however, with an increase in viscosity using various proportions of glycerol, the fluorescence intensity was enhanced to 461 nm with a 6-fold increase in fluorescence quantum yields, which could be utilized for the quantitative determination of viscosity. Interestingly, NCP exhibited novel AIE characteristics in terms of size and growth in HO-CHCN mixtures with high water contents and different volume percentage of water, which was investigated using fluorescence, DLS study and SEM analysis.
View Article and Find Full Text PDFA chemodosimetric approach for the visual detection of nerve agent simulant diethyl chlorophosphate (DCP) in liquid and vapour phase.
Anal Methods
November 2023
Department of Chemistry, Jadavpur University, Kolkata-700 032, India.
In this work, a novel fluorescent ratiometric switch, 8-((6-(1-benzo[]imidazol-2-yl)pyridin-2-yl)methoxy)quinoline (BIPQ), has been introduced for sensing an organophosphorus (OP) chemical vapor threat, diethyl chlorophosphate (DCP), the low-toxic mimic of the real nerve agent sarin (GB). BIPQ is efficient at detecting DCP in both solution and gaseous phase and has potential practical application with high sensitivity and selectivity. The probe shows significant ratiometric emission in the presence of DCP along with a distinct color change from blue to cyan under UV light.
View Article and Find Full Text PDFIn vivo 'turn on' fluorescence detection of free cysteine in zebrafish kidney and liver.
J Photochem Photobiol B
August 2023
Department of Chemistry, Visva-Bharati University, Santiniketan 731235, India. Electronic address:
Cysteine is directly associated with a wide range of biological processes. Besides its essential role in protein synthesis, cysteine undergoes a variety of post-translational modifications which modulate several physiological processes. Dysregulated cysteine metabolism is associated with several neurodegenerative disorders.
View Article and Find Full Text PDFA metal complex based fluorescent chemodosimeter for selective detection of 2,4-dinitrophenol and picric acid in aqueous media.
Dalton Trans
October 2022
Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700 009, India.
This work describes the syntheses, characterization, crystal structures, absorption and emission spectra and DFT calculations of three dizinc(II) compounds of the composition [ZnII2L(μ-N)(N)] (1) [ZnL'(2,4-dinitrophenolate)] (2) and [ZnL'(picrate)] (3), respectively, (where HL is the 1 : 2 condensation product of 4-ethyl-2,6-diformylphenol and -methylethylenediamine and H2L' (a diamino-diimino-diphenol system) is a new type of macrocyclic ligand). Compound 1 is water soluble and its aqueous solution exhibits intense fluorescence properties. 2,4-Dinitrophenol (DNP) and picric acid (PA) selectively quench the fluorescence intensity of 1 to a significant extent, revealing that 1 is a fluorescence sensor of DNP and PA.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!