Publications

Amorphous iron nanoparticles (Fe NPs) possess manifold applications in biomedical field owing to their unique physiochemical properties. Herein, a feasible green synthesis of Fe NPs is described employing choline chloride (ChCl) and sucrose (SR) based deep eutectic solvent (DES) as a stabilizing as well as capping agent. Stabilized Fe NPs were attained using precursors like ferric chloride hexahydrate (FeCl3.6H2O) and ferrous chloride tetrahydrate (FeCl2.4H2O) via co-precipitation method with potassium hydroxide (KOH) as a reducing agent. UV–Visible diffuse reflectance spectroscopy (UV-DRS) demonstrated characteristic broad absorption around 400–600 nm which illustrates the emergence of nanoparticles. Micrographs of the prepared material examined by electron microscopies (SEM, TEM), depicts spherical with size ranging from 80 to 180 nm. This was further reinforced with dynamic light scattering (DLS) technique. Low magnetization value demonstrated the superparamagnetic behaviour of the amorphous Iron nanoparticles which is notable for biomedical applications such as magnetic hyperthermia and localized drug delivery. Additionally; the characterized Fe NPs degrades rhodamine B (Rh B), a carcinogenic dye upto 96.06% within 30 min under UV light illumination, thus evidencing its usage by scientific community as suitable nanomaterial for dye removal from contaminated water samples. Antibacterial studies of the amorphous Fe NPs showed maximum zone of inhibition and activity index against waterborne pathogens Staphylococcus aureus, Micrococcus luteus, Proteus mirabilis, Klebsiella pneumonia and Escherichia coli. The obtained results showed that the Fe NPs are capable of inhibiting the growth of both Gram positive and Gram negative bacterial pathogens. Furthermore, cytotoxic effects of amorphous Fe NPs against HCT 116 and CCL 241 cancer cells exhibit dose dependent antiproliferation. The results proved that the amorphous Fe NPs can endure as a potential entrant for waste water management and treatment of cancer.

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.

Building a hydrophobic self-assembled monolayer of octadecanethiol on a CoP nanoarray on a titanium mesh (C18@CoP/TM) greatly enhances the N₂ reduction activity with an NH₃ yield of 1.44 × 10⁻¹⁰ mol s⁻¹ cm⁻² and a FE of 14.03% in 0.1 M Na₂SO₄.

Fe-MOF/NF shows superior electrocatalytic performance towards the OER in 1.0 M KOH with a low overpotential of 240 mV at 50 mA cm⁻².

The interaction of microwave synthesized bismuth sulfide nanorods with human serum albumin was investigated using multispectroscopic techniques such as absorption spectroscopy, fluorescence spectroscopy and circular dichroism spectroscopy.

In this Communication, we report a high-efficiency electrocatalyst for electrochemical water oxidation based on an Fe-doped Ni₂P nanosheet array on a conductive carbon cloth. This catalyst shows a low onset overpotential of 190 mV, and it demands overpotentials of only 215 and 235 mV to drive 50 and 100 mA cm^-2, respectively, with high electrochemical durability. This work offers us an attractive earth-abundant 3D catalyst electrode in water-splitting devices toward the mass production of hydrogen fuels for applications.

ABSTRACT A new series of polyarylidene(keto amine)s (PAKAs) 3 a −3 e based on thiophene moieties in polymer main chains were synthesized with the solution polycondensation technique. The polymers were synthesized by the reaction of the new monomer 1,1′‐(1 E ,1′ E )‐(2‐oxocyclohexane‐1,3‐diylidene)bis(methanylylidene)bis(thiophene‐5,2‐diyl)bis(2‐chloroethanone) ( 2 ) with different diamines. The new monomer was first synthesized under the normal conditions of the Friedel–Crafts reaction. The results obtained from both elemental and spectral analyses were consistent with the chemical structure of the new monomers and the polymers. Moreover, the identification of the polymers was carried out with different characterization techniques. The analytical competition of the newly synthesized PAKA polymers as selected examples ( 3 d and 3 e ) was also evaluated for a selective extraction of metal ions, including Cd(II), Co(II), Cu(II), Cr(III), Fe(III), Ni(II), and Zn(II), before their determination by inductively coupled plasma–optical emission spectrometry. The results of the selectivity study demonstrated that the 3 d and 3 e polymers was the most selective toward Co(II) and Fe(III), respectively. However, the adsorption capacity of 3 d for Co(II) was improved by 10.10% in comparison to that of 3 e for Fe(III) after only 1 h of contact time. Moreover, the adsorption isotherm data also showed that the adsorption process was mainly monolayer on the homogeneous adsorbent surfaces of both polymers. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40873.