Colorimetric “off–on” fluorescent probe for selective detection of toxic Hg2+ based on rhodamine and its application for in-vivo bioimaging

Gauthama, B.U.; Narayana, B.; Sarojini, B. K.; Suresh, Nandini; Sangappa, Y.; Kudva, Avinash K.; Satyanarayana, Gedu; Raghu, Shamprasad Varija

doi:10.1016/j.microc.2021.106233

Cited by 21 publications

(6 citation statements)

References 55 publications

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“…The proton NMR spectra of the compounds were recorded in DMSO-d 6 solvent (Figures S6 and S8). The spectral data of ligand revealed two sharp singlets at δ 13.40 and δ 10.89 ppm, which were designated to -SH [56] and -OH [57] proton of 1,2,4-triazole and aldehydic ring, respectively. Another singlet appearing at δ 9.70 ppm was assignable to the proton of the azomethine group.…”

Section: H Nmr Spectramentioning

confidence: 99%

Instigating the in vitro antidiabetic activity of new tridentate Schiff base ligand appended M(II) complexes: From synthesis, structural characterization, quantum computational calculations to molecular docking, and molecular dynamics simulation studies

Deswal

Asija

Tufail³

et al. 2023

Applied Organom Chemis

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In search of novel medications that could be effective in preventing and treating diabetes, four new [Co(L)(H 2 O) 3 ] (2), [Ni(L)(H 2 O) 3 ] (3), [Cu(L)(H 2 O)] (4) and [Zn(L)(H 2 O)] (5) complexes were synthesized from 4-Chloro-2-(((3-mercapto-5-[pyridin-4-yl]-4H-1,2,4-triazol-4-yl)imino)methyl)phenol ligand (H 2 L),which is obtained by the condensation of 5-chlorosalicylaldehyde with 4-amino-5-(pyridin-4-yl)-4H-1,2,4-triazole-3-thiol in 1:1 ratio. The Fouriertransform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR)( 1 H and 13 C), elemental analyses, UV-visible, electron spin resonance (ESR), thermogravimetric analysis (TGA), scanning electron microscopy, energy dispersive X-ray analysis (EDAX), and X-ray diffraction (XRD) studies were used to successfully characterize the compounds. The ligand act in a tridentate manner and coordinates to the metal ions through N azomethine , O phenolic and S thiol functionalities. On the premise of their spectral and physico-analytical data; octahedral geometry for complex 2 and 3, while square planar and tetrahedral geometry for complex 4 and 5 was proposed. Theoretical calculations of the synthesized compounds have been performed by using density functional theory (DFT)/B3LYP method and parameters such as HOMO-LUMO energy values and MESP were calculated. In vitro examinations against α-amylase and α-glucosidase reveal promising results for the compounds. Nickel (II) complex(3) against α-amylase and zinc (II) complex (5) against α-glucosidase were found to be good inhibitors. Molecular docking experiments against the receptors 1BSI and 5ZCC were done to support the observation and considerable

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Section: H Nmr Spectramentioning

confidence: 99%

Instigating the in vitro antidiabetic activity of new tridentate Schiff base ligand appended M(II) complexes: From synthesis, structural characterization, quantum computational calculations to molecular docking, and molecular dynamics simulation studies

Deswal

Asija

Tufail³

et al. 2023

Applied Organom Chemis

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“…Rhodamine derivatives are a kind of fluorescent dyes with oxaanthracene structure. Their unique lactam ring structure can associate with some metal ions, so as to control fluorescence quenching, recovery and color change in the form of "openloop closed-loop" [12][13]. The conjugated system and rigid coplanar in its structure make its fluorescence tend to a stable state, which makes it have the characteristics of strong light stability, wide wavelength range, high fluorescence quantum yield and low pH sensitivity.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and performance study of a ratiometric fluorescent probe for Hg(Ⅱ) detection

Wang,

Ning,

Han

et al. 2024

Ninth International Symposium on Energy Science and Chemical Engineering (ISESCE 2024)

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“…Industrially, detection of Co 2+ in the Zn 2+ -containing electrolyte is carried out using electrothermal atomic absorption spectrometry with expensive instruments, or spectrophotography which involves cumbersome operation [ 17 , 18 ]. Additionally, the on-site detection and real-time monitoring of Co 2+ is difficult to conduct because the acid and the noisy, mechanical vibrational environment on site do not allow for the stable functioning of these precise instruments [ 19 , 20 ]. In fact, the tedious analysis procedures, including the sample preparation, transfer of sample from the on-site spot to the analysis-testing center, and sample pretreatment for analysis, have greatly hindered the precise control and swift emergency response of the electrolysis process in the industry.…”

Section: Introductionmentioning

confidence: 99%

Extending Ag Nanoparticles as Colorimetric Sensor to Industrial Zinc Electrolyte for Cobalt Ion Detection

Xiao

Weng

Tang³

et al. 2023

Molecules

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The direct and rapid determination of trace cobalt ion (Co2+) in the electrolyte of zinc smelting plants is urgently needed but is impeded by the severe interference of extremely high-concentration zinc ions in the solution. Herein, colorimetric detection of Co2+ by the polyvinylpyrrolidone functionalized silver nanoparticles (PVP-AgNPs) is realized in solutions with the Zn/Co ratio being high, up to (0.8–5) × 104, which is located within the ratio range in industrial solution. The high concentration of Zn2+ induces a strong attenuation of Co2+-related signals in ultraviolet-visible (UV-vis) extinction spectra; nevertheless, a good linear range for detecting 1–6 mg/L Co2+ in 50 g/L Zn2+ solution is still acquired. The strong anti-interference toward other metal ions and the mechanism understanding for trace Co2+ detection in such a high-concentration Zn2+ solution are also revealed by systematic analysis techniques. The results extend the AgNPs as colorimetric sensors to industrial solutions, providing a new strategy for detecting trace-metal ions in industrial plants.

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Colorimetric “off–on” fluorescent probe for selective detection of toxic Hg2+ based on rhodamine and its application for in-vivo bioimaging

Cited by 21 publications

References 55 publications

Instigating the in vitro antidiabetic activity of new tridentate Schiff base ligand appended M(II) complexes: From synthesis, structural characterization, quantum computational calculations to molecular docking, and molecular dynamics simulation studies

Instigating the in vitro antidiabetic activity of new tridentate Schiff base ligand appended M(II) complexes: From synthesis, structural characterization, quantum computational calculations to molecular docking, and molecular dynamics simulation studies

Synthesis and performance study of a ratiometric fluorescent probe for Hg(Ⅱ) detection

Extending Ag Nanoparticles as Colorimetric Sensor to Industrial Zinc Electrolyte for Cobalt Ion Detection

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