A5016929093- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Molecular Sensors and Ion Detection
- Luminescence and Fluorescent Materials
- Advanced biosensing and bioanalysis techniques
- Analytical Chemistry and Sensors
- Electrochemical Analysis and Applications
- Metal complexes synthesis and properties
- Atomic and Molecular Physics
- Crystallography and molecular interactions
- Magnetism in coordination complexes
- X-ray Spectroscopy and Fluorescence Analysis
- Lanthanide and Transition Metal Complexes
- Metal-Organic Frameworks: Synthesis and Applications
- Perovskite Materials and Applications
- Advanced Chemical Physics Studies
- Conducting polymers and applications
- Crystal structures of chemical compounds
- Radiation Therapy and Dosimetry
- Laser-induced spectroscopy and plasma
- Polyoxometalates: Synthesis and Applications
- Advanced Nanomaterials in Catalysis
- Molecular spectroscopy and chirality
- Surfactants and Colloidal Systems
- Organic Light-Emitting Diodes Research
Jadavpur University
2006-2021
University of Calcutta
2013-2015
Netaji Subhas Chandra Bose Cancer Research Institute
2006
A novel fluorescent chemosensor based on a rhodamine derivative (<bold>L</bold>) was designed, synthesized, and used as selective Al<sup>+3</sup>ion sensor.
For the first time, a hydrazinopyrimidine based chemosensor has been designed for sensing Al<sup>3+</sup> through CHEF-PET-ESIPT fluorescence mechanisms and by building an ‘INHIBIT’ molecular logic gate.
The absence of d-orbital electrons or presence full-filled in metal ions is a well-known Achilles' heel problem for the detection these by simple UV-visible study. For this reason, such as Al3+ with no Zn2+ filled challenging task. Herein, we report 2-naphthol-based fluorescent probe [1-((E)-((E)-(5-bromo-2-hydroxybenzylidene)hydrazono)methyl)naphthalen-2-ol] (H2L) that has been used to sense and discriminate via solvent regulation. exhibits excellent selectivity swift sensitivity toward...
Both rhodamine and azobenzene moieties have been conjugated to prepare a novel chemosensor for the detection of Al<sup>3+</sup> through CHEF-PET spirolactam ring opening mechanism.
A newly designed fluorescent sensor 5-methyl-1<italic>H</italic>-pyrazole-3-carboxylic acid (6-methoxy-naphthalen-2-ylmethylene)-hydrazide (PYN) shows excellent selectivity and sensitivity with a fluorescence enhancement towards Zn<sup>2+</sup> Mg<sup>2+</sup> ions in aqueous acetonitrile solution.
Fluorescent chemosensors with aggregation induced emission enhancement (AIEE) emerge as promising tools in the field of sensing materials. Herein, we report design, synthesis and applicability a Schiff base chemosensor 1-(benzo[1,3]dioxol-4-ylmethylene-hydrazonomethyl)-naphthalen-2-ol (Hbdhn) AIE characteristics that exhibits highly effective selective response towards Zn2+ . The effect Hbdhn was evaluated by means absorption/emission spectra corresponding underlying photophysical mechanisms...
Abstract Counter anion‐triggered metal ion detection has been rarely reported by fluorimetric method. To address this challenging issue, a fluorescent probe ( H 2 L ) synthesized from bromo‐salicylaldehyde and hydrazine hydrate, structurally characterized single crystal X‐ray diffraction. The shows very weak fluorescence itself. However, its emission intensity increases in the presence of Zn 2+ over other ions. Surprisingly, profile is augmented only when acetate anion (OAc¯) present as...
A bio-compatible pyridine–pyrazole hydrazide based chemosensor for Al 3+ has been synthesized and applied cell imaging studies.
We have calculated the double-electron-capture cross sections for ${\mathrm{He}}^{2+}$, ${\mathrm{Li}}^{3+}$, and ${\mathrm{B}}^{5+}$ collisions with He atoms in intermediate-to-high energies framework of four-body formalism post form boundary corrected continuum intermediate state approximation. In this formalism, each active electrons projectile ion has been taken into account because asymmetric nature collision when charge is greater than target nuclear charge. As a consequence,...
Double-charge-transfer cross sections into singly and doubly excited states for collisions of $\ensuremath{\alpha}$ particles with helium atoms have been studied in the energy range 50 to $500\phantom{\rule{0.3em}{0ex}}\mathrm{keV}∕\mathrm{amu}$. We also double electron capture ground $^{7}\mathrm{Li}^{3+}$ $^{10}\mathrm{B}^{5+}$ atoms. In our study we applied four-body boundary corrected continuum intermediate state approximation. The each static correlations electrons taken account this...
Abstract In this experimental and theoretical study, a new pyrene‐pyrazole based chemosensor, 5‐Methyl‐1H‐pyrazole‐3‐carboxylic acid pyren‐1‐ylm ethylene hydrazide ( MpcphH) , is designed prepared for selective sensing of Hg 2+ . Photophysical studies, including UV‐vis fluorescence, showed that MpcphH exhibited high selectivity sensitivity in response to with detection limit the nano molar range. The 1 H 13 C−NMR spectroscopic techniques are presented elucidate coordination modes towards...
The classical trajectory Monte Carlo (CTMC) simulation method has been employed to study the sub-shell distributions of total charge transfer cross sections and ionization in collisions partially stripped ions carbon, nitrogen oxygen different states (q ≤ 5) with ground state atomic hydrogen energy range 10-200 keV amu-1. section for found be good agreement experimental observations as well other theoretical findings. Due non-availability any results sections, comparisons have made existing...
Bottom-up <italic>in situ</italic> synthesis of a bright green fluorescent nanocomposite, methylammonium lead bromide@poly(3-bromothiophene) is reported and the composite exhibits excellent moisture-resistivity.