Publications

Fabrication of tantalum oxyfluoride and oxynitride thin films via ammonolysis of sol–gel processed tetraethoxo (β-diketonato) tantalum (V) precursors for enhanced photocatalytic activity

Electrochemical detection of nitrite (NO2) with PEDOT:PSS modified gold/PPy-C/carbon nitride nanocomposites by electrochemical approach

NixSy-MoS2 hybrid microspheres: One-pot hydrothermal synthesis and their application as a novel hydrogen evolution reaction electrocatalyst with enhanced activity

Preparation of poly(2-methylaniline)V(III) tungstate nanofiber and its application as indicator electrode by diffusion phenomenon

Core–shell- shell structured P(Ani-co-Py)/NiF-grafted-(Go-PPD)-PPy nanocomposites prepared via two steps polymerization of conducting polymer for sensitive Tl3+detection

In this research, a newly developed structure consisting of a shell made of (Graphene oxide-Paraphenylenediamine)/Polypyrrole (Go-PPD)-PPy was successfully synthesized on a binary poly(aniline-co-o-pyrrole)/NiFe 2 O 4 core-shell nanocomposite, known as P(Ani-co-Py)/NiF NCs. The synthesis process involved a two-step approach, starting with the in-situ oxidative polymerization of the copolymer P(Ani-co-Py) on NiF nanoparticles (NPs). This was followed by a subsequent in-situ oxidative polymerization of (Go-PPD)-PPy on the P(Ani-co-Py)/NiF core-shell NCs, resulting in the formation of PPy-(Go-PPD)/P(Ani-co-Py)/NiF NCs with a core-shell-shell structure. In this method, the developed sensor designed specifically for Tl 3+ demonstrated high effectiveness and reliability in detecting Tl 3+ ions within a phosphate buffer medium. During the fabrication process of the sensor probe, the stability of the synthesized PPy-(Go-PPD)/P(Ani-co-Py)/NiF NCs on a glassy carbon electrode (GCE) was enhanced significantly by incorporating nafion, a 5% suspension in ethanol. A calibration curve was established by drawing the current toward the concentration of Tl 3+ , showing a linear relationship. By looking at the maximum linear portion of the calibration curve, a linear dynamic range of 0.1 nM to 0.01 mM was determined. Sensor sensitivity has been calculated as 1.06 µAµM −1 cm −2 , by setting the slope of the calibration curve and GCE (the surface area of the glassy carbon electrode), which was measured as 0.0316 cm 2 . The lower limit of detection (LOD) was determined to be 92.09±4.60 pM based on a signal-to-noise ratio of 3. Limit of quantification (LOQ) is calculated as 279.06 pM from 10*(LOD)/3.3. Finally, the proposed Tl 3+ ion sensor's performance was validated by analyzing real environmental samples, and satisfactory results were obtained.

A reliable electrochemical approach for detection of testosterone with CuO-doped CeO2 nanocomposites-coated glassy carbon electrode

5-Chloro-3,6-dimethyl-1-phenyl-1<i>H</i>,4<i>H</i>-pyrano[2,3-<i>c</i>]pyrazol-4-one

In the title compound, C(14)H(11)ClN(2)O(2), two independent mol-ecules (A and B) comprise the asymmetric unit with the main difference between them being the relative orientation of the pendent phenyl ring with respect to the fused-ring system [dihedral angles = 8.32 (8)° (A) and 28.32 (8)° (B)]. In the crystal, the A mol-ecules are connected into a linear supra-molecular chain along the a axis via C-H⋯O inter-actions and linked to this via C-H⋯Cl inter-actions are the B mol-ecules. The chains are connected into layers in the ab plane by π-π inter-actions between pyrazole (A) and pyran (B) rings, and between pyrazole (B) and pyran (A) rings [centroid-centroid distances = 3.5442 (11) and 3.4022 (10) Å, respectively].

Introductory Chapter: Carbon Nanotubes and Their Applications

Synthesis of (2E)-2-(2,4,6-Trimethoxybenzylidene)indan-1-one

Donor-acceptor (D-p-A) dyestuff and colorants represent a vast majority of organic chromogens

CCDC 1529589: Experimental Crystal Structure Determination

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

ChemInform Abstract: Cytotoxic and Protective DNA Damage of Three New Diterpenoids from the Brown Alga Dictoyota dichotoma.

Abstract The biological activity of compounds (I) is relatively high in all types of assays (bleomycin‐dependent DNA damage, cytotoxicity against WI‐38, HepG2, MCF‐7 cells and antioxidant activity).

An Electrochemical Approach for the Selective Detection of Cancer Metabolic Creatine Biomarker with Porous Nano-Formulated CMNO Materials Decorated Glassy Carbon Electrode

The facile wet-chemical technique was used to prepare the low-dimensional nano-formulated porous mixed metal oxide nanomaterials (CuO.Mn₂O₃.NiO; CMNO NMs) in an alkaline medium at low temperature. Detailed structural, morphological, crystalline, and functional characterization of CMNO NMs were performed by X-ray photoelectron spectroscopy (XPS), powder X-ray diffraction (XRD), ultraviolet-visible spectroscopy (UV-vis), Fourier-transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), and energy-dispersive X-ray spectroscopy (EDS) analyses. An efficient and selective creatine (CA) sensor probe was fabricated by using CMNO NMs decorated onto glassy carbon electrode (GCE) as CMNO NMs/GCE by using Nafion adhesive (5% suspension in ethanol). The relation of current versus the concentration of CA was plotted to draw a calibration curve of the CMNO NMs/GCE sensor probe, which was found to have a very linear value (r² = 0.9995) over a large dynamic range (LDR: 0.1 nM~0.1 mM) for selective CA detection. The slope of LDR by considering the active surface area of GCE (0.0316 cm²) was applied to estimate the sensor sensitivity (14.6308 µAµM^-1 cm^-2). Moreover, the detection limit (21.63 ± 0.05 pM) of CMNO MNs modified GCE was calculated from the signal/noise (S/N) ratio at 3. As a CA sensor probe, it exhibited long-term stability, good reproducibility, and fast response time in the detection of CA by electrochemical approach. Therefore, this research technique is introduced as a promising platform to develop an efficient sensor probe for cancer metabolic biomarker by using nano-formulated mixed metal oxides for biochemical as well as biomedical research for the safety of health care fields.

Preparation and Properties of Novel Quaternized Metal-Polymer Matrix PANI/FCNTs/Sn(II)SiO 3 Nano Composites

Development of 4-aminophenol sensor based on Co-MoS2 nanomaterials decorated on glassy carbon electrode using electrochemical technique

2-(1,3-Benzodioxol-5-yl)ethylene-1,1,2-tricarbonitrile

2-(1,3-benzodioxol-5-yl)ethylene-1,1,2-tricarbonitrile (2), was prepared from (1,3-benzodioxol- 5-ylmethylene)malononitrile (1) and sodium cyanide, followed by oxidation using bromine [1,2].[...]

Effect of MWCNT/ Al2O3/ boron nitride fillers based natural/carbon/ innegra fabrics/ SS-WM/ Iron-WM reinforced UV resistant polyester composites

Thin layer chitosan-coated cellulose filter paper as substrate for immobilization of catalytic cobalt nanoparticles

CCDC 914377: Experimental Crystal Structure Determination

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.