Publications

In this communication, we report on the first use of Ni₃Se₂film electrochemically deposited on Cu foam (Ni₃Se₂/CF) as a bifunctional catalyst for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) with good durability at alkaline media.

Manganese oxide nano-particles have been synthesized by hydrothermal process using aqueous combination of manganese chloride and urea as starting materials, where ammonium hydroxide is used as a reducing agent to adjust the pH at 10.55. The structural investigation of the as-grown nano-crystalline manganese oxide is analyzed by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectrophotometer (FTIR), and Raman spectrophotometer, which revealed that the synthesized manganese oxide is well crystalline. Further, energy dispersive spectroscopy (EDS) confirms the composition of manganese oxide (Mn3O4) with Mn and O elements. UV-Visible absorption spectra (~293.44 nm) are used to investigate the optical properties of as-grown Mn3O4. The photocatalytic activity of the synthesized Mn3O4 is evaluated using color dye (Acridine Orange, AO), which degraded close to 47.38% in irradiation time (170 min). The chemical sensing of Mn3O4 coated electrodes has been primarily investigated by I-V technique, where ethanol is used as a model compound. The analytical performance of ethanol sensors exhibits the higher sensitivity (0.4777 μAcm-2mM-1) and a large linear dynamic range (0.17 μM to 0.17 M) in short response time (10.0 sec). Keywords: Mn3O4, XRD, FE-SEM, Photo-degradation, Acridine Orange, Ethanol sensor

Meniere's disease is defined by the presence of three essential symptoms: episodic vertigo, tinnitus, and sensorineural hearing loss. The mainstay of its management constitutes lifestyle modification and medical and surgical therapies. Cupping therapy is an ancient treatment that is still widely used especially in the Middle East, Africa, and the United Kingdom. This study portraits the case of a 54-year-old patient suffering from long-standing Meniere's disease. The patient was treated with the routine treatment that was to no avail. It was decided that the patient undergoes cupping therapy. Over two years of monthly cupping therapy sessions, the patient reported a decrease in intensity and frequency of symptoms until its disappearance. Cupping therapy has shown a positive outcome on the patient. According to our search, there is a previous case report published in 2020 that shares multiple similarities with our case. Further studies on cupping therapy and its efficacy, mechanism of action, and complications on a larger scale are advised.

Der Reaktionsmechanismus der industriell wichtigen Umwandlung von Methanol in Olefine über Zeolithkatalysatoren wurde untersucht. In der Zuschrift auf S. 16072 ff. zeigen M. Baldus, B. M. Weckhuysen et al. einen effektiven, auf Festkörper-NMR-Spektroskopie und Operando-UV/Vis-Spektroskopie basierenden Ansatz, um den Beweis für einen direkten Mechanismus bei der Bildung der ersten Kohlenstoff-Kohlenstoff-Bindung während der Anfangsphase der Reaktion zu liefern.

In recent decades, metal‐based drugs have gained considerable attention all over the world because of their enhanced therapeutic potential. The piroxicam analogue, that is, 2‐Benzyl‐4‐hydroxy‐1,1‐dioxo‐1,2‐dihydro‐1 λ 6 ‐benzo [ e ][1,2] thiazine‐3‐carboxylic acid pyridin‐2‐yl amide 1 was synthesized and coupled with Mn (II), Co (II), Ni (II), Cu (II) and Zn (II) metal ions to isolate complexes 2–6 . The N,O ‐bidentate chelator coordinated with the metal center via pyridyl nitrogen and amide oxygen atoms by forming six‐membered ring system. Several analytical techniques like UV–Vis, FT‐IR, 1 H NMR, magnetic susceptibility, and elemental analysis were performed to confirm the syntheses of the octahedral complexes. The conductance measurement was employed to determine the non‐electrolytic nature of the complexes. The molecular structures of manganese (II) 2 , cobalt (II) 3, and zinc (II) 6 , complexes were confirmed by single beam X‐ray crystallography revealing the monoclinic crystal system with P21/c space group. The crystallographic data was utilized to carry out the DFT studies, which were found in line with the experimental data. The antioxidant (DPPH, FRAP) and antibacterial activities were performed to determine the therapeutic potential of these synthesized compounds. These studies indicated that understudied compounds have potential as therapeutic agents and they may be used as drug candidates in the future. The in‐silico studies also aligned with the in‐vitro potential of the targeted compounds.

As for the doped nanostructures, NPs are introduced a route to a new generation of toxic chemo-sensors, but a premeditate effort has to be applied for doped Mn2O3-ZnO NPs to be taken comprehensively for large-scale applications, and to achieve higher-potential density with accessible to individual chemo-sensors. In this report, it is also discussed the prospective utilization of Mn2O3-ZnO NPs on the basis of carcinogenic chemical sensing, which could also be applied for the detection of hazardous chemicals in ecological, environmental, and health care fields.

The focus of the present work is to evaluate the interactions of an anti-allergic drug (diphenhydramine hydrochloride, DPH) with anionic (sodium dodecyl sulfate, SDS) and cationic (cetylpyridinium chloride, CPC) surfactants in the aqueous medium. The mixed micellization behavior and surface properties of drug-surfactant mixtures have been examined by surface tension measurements. Various theoretical approaches were applied to explore the synergistic or non-ideal behavior of the current mixed systems. Furthermore, the binding studies of drug with surfactants have been elaborated by UV-visible spectroscopy. Benesi-Hildebrand (B-H) theory was used to compute stoichiometric ratio, binding constant, and free energy change for the drug-surfactant mixtures. The outputs are deliberated taking into consideration the use of surfactants as capable drug delivery agents for DPH and hence advance bioavailability.