Volume-16 ~ Issue-3 ~ March 2023

Abstract: Green blend strategy is a basic, modest, environmental, and quick method for the synthesis of nanoparticles when contrasted with the ordinary physical and synthetic techniques which are very costly and possibly risky to the climate, gold(Au0), silver (Ag0) and palladium (Pd0) nanoparticles (NPs) have been incorporated effectively by green synthetic technique utilizing the lessening specialist, combined from Kalanchoepinnata (Ranapalam plant). The presence of cell reinforcement compounds in Kalanchoepinnata remove is liable for lessening and covering of metal nanoparticles.The synthesized Au-Ag-Pd-NPs further characterized by UV-Visible spectroscopy to conform the Nanoparticles.....

Keywords. Green synthesis, Kalanchoepinnata (Ranapalam plant), Microbial activity

[1]. Turunc, E., Binzet, R., Gumus, I., Binzet, G., &Arslan, H. (2017). Green synthesis of silver and palladium nanoparticles using Lithodorahispidula (Sm.) Griseb. (Boraginaceae) and application to the electrocatalytic reduction of hydrogen peroxide. Materials Chemistry and Physics, 202, 310–319. https://doi.org/10.1016/j.matchemphys.2017.09.032
[2]. Vijilvani, C., Bindhu, M. R., Frincy, F. C., AlSalhi, M. S., Sabitha, S., Saravanakumar, K., Devanesan, S., Umadevi, M., Aljaafreh, M. J., &Atif, M. (2020). Antimicrobial and catalytic activities of biosynthesized gold, silver and palladium nanoparticles from Solanumnigurum leaves. Journal of Photochemistry and Photobiology B: Biology, 202(November 2019), 111713. https://doi.org/10.1016/j.jphotobiol.2019.111713
[3]. Yaqoob, S. B., Adnan, R., Rameez Khan, R. M., & Rashid, M. (2020). Gold, Silver, and Palladium Nanoparticles: A Chemical Tool for Biomedical Applications. Frontiers in Chemistry, 8(June), 1–15. https://doi.org/10.3389/fchem.2020.00376
[4]. Meva, F. E. A., Ntoumba, A. A., Kedi, P. B. E., Tchoumbi, E., Schmitz, A., Schmolke, L., Klopotowski, M., Moll, B., Kökcam-Demir, Ü., MpondoMpondo, E. A., Lehman, L. G., &Janiak, C. (2019). Silver and palladium nanoparticles produced using a plant extract as reducing agent, stabilized with an ionic liquid: Sizing by X-ray powder diffraction and dynamic light scattering. Journal of Materials Research and Technology, 8(2), 1991–2000. https://doi.org/10.1016/j.jmrt.2018.12.017
[5]. Karimi, F., Rezaei-savadkouhi, N., Uçar, M., Aygun, A., ElhoudaTiri, R. N., Meydan, I., Aghapour, E., Seckin, H., Berikten, D., Gur, T., &Sen, F. (2022). Efficient green photocatalyst of silver-based palladium nanoparticles for methyle orange photodegradation, investigation of lipid peroxidation inhibition, antimicrobial, and antioxidant activity. Food and Chemical Toxicology, 169(September), 113406. https://doi.org/10.1016/j.fct.2022.113406

Abstract: The condensation of 1H-imidazole-2-carbaldehyde and 2-carbonohydrazide in methanol yielded white solid formulated as C9H10N8O (1,5-bis((1H-imidazol-2-yl)methylene)carbonohydrazide). The use of the above compound in the tentative of the preparation of a cobalt complex with CoCl2.6H2O (1) leads to the formation of a 1:1 salt. The crystal structure reveals that both the sp2-nitrogen atoms of the imidazole ring are partially protonated with a half-occupied hydrogen atom yielding a monoprotonated hydrated compound formulated as [C9H11N8O].Cl.H2O (1,5-bis(((1H-imidazol-3-ium)-2-yl)methylene)carbonohydrazide monochloride monohydrate)(2). The crystal packing is stabilized by intramolecular hydrogen bonds of type N(carbohydrazide)—H···Cl......

[1]. Mandal A, Sarkar A, Adhikary A, Samanta D, Das D. Structure and synthesis of copper-based Schiff base and reduced Schiff base complexes: a combined experimental and theoretical investigation of biomimetic catalytic activity. Dalton Transactions. 2020; 49(43):15461–15472. https://doi.org/10.1039/D0DT02784G
[2]. Kalita M, Gogoi P, Barman P, Sarma B, Buragohain AK, Kalita RD. A new series of Ni(II), Cu(II), Co(II) and Pd(II) complexes with an ONS donor Schiff base: Synthesis, crystal structure, catalytic properties and bioactivities. Polyhedron. 2014; 74:93–98. https://doi.org/10.1016/j.poly.2014.02.043
[3]. Gupta KC, Sutar AK. Catalytic activity of polymer anchored N,N′-bis (o-hydroxy acetophenone) ethylene diamine Schiff base complexes of Fe(III), Cu(II) and Zn(II) ions in oxidation of phenol. Reactive and Functional Polymers. 2008; 68(1):12–26. https://doi.org/10.1016/j.reactfunctpolym.2007.10.015
[4]. Nandhini R, Krishnamoorthy BS, Venkatachalam G. Binuclear half-sandwich ruthenium(II) Schiff base complexes: Synthesis, characterization, DFT study and catalytic activity for the reduction of nitroarenes. Journal of Organometallic Chemistry. 2019; 903:120984. https://doi.org/10.1016/j.jorganchem.2019.120984
[5]. Rayati S, Shokoohi S, Bohloulbandi E. Mn(II) and VO(IV) Schiff base complexes encapsulated in nanocavities of zeolite-Y: catalytic activity toward oxidation of alkenes and reduction of aldehydes. Journal of the Iranian Chemical Society. 2016; 13(11):1983–1991. https://doi.org/10.1007/s13738-016-0915-x.

Abstract: The concentrations of particulate matter and potentially toxic elements (PTEs) in ambient air around some Ogoni communities in Rivers State were assessed. PTEs were collected with Kanomax 3900 Portable High Volume sampler and analysed using Atomic Absorption Spectrophotometer. The health risk of the elements were estimated using United States Environmental Protection Agency (USEPA) standards; non-carcinogenic risk was assessed by estimating the hazard quotient (HQ) and hazard index (HI) while carcinogenic risk was evaluated by target cancer risk (TLCR) in the three main pathways of ingestion, inhalation and dermal contact. The mean concentrations of the PTEs were As 0.113±0.061mg/kg, Cd 0.004±0.002 mg/kg, Cr 0.003±0.002 mg/kg, Cu 0.001±.....

Keywords: Health Risk, Toxic Elements, Ambient Air, Ogoni, Nigeria

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Abstract: Fluorapatite is a species of apatite, a mineral mainly composed of phosphate and calcium of hexagonal form, which is characterized by the presence of fluorine whose chemical formula is Ca5 (PO4)3(F). It is a source of phosphorus, but if it contains metal oxides, it makes phosphorus less available for plants. The present work aims to synthesize fluorapatite and to study the effects of Fe3+, Al3+ and total iron mass (Fe3++Al3+) on the dissolution of synthetic fluorapatite. The results obtained from different analyses confirmed the formation of almost pure fluorapatite. In a second step, a study of the solubility of synthetic fluoroapatite with the addition of iron ions (0; 50; 150mg), aluminum ions.....

Keywords: Synthesis, fluorapatite, effects, ferral, solubility

[1]. Boujier V, (2007). Influence of monohydrogenophosphate and fluorophosphate ions on phosphogypsum properties and phosphoplater reactivity. PhD thesis in Process Engineering. Ecole Nationale Supérieure des Mines de Saint-Etienne.
[2]. Abdoul Bari I. A, (2019). Effect of thermal treatment on the solubility of Tahoua rock phosphate in sulfuric acid and citric acid. Master's thesis in mineral chemistry at Abdou Moumouni University of Niamey. 50 Pages.
[3]. Fao, (2013). Use of natural phosphates for sustainable agriculture. Fao fertilizer and plant nutrition bulletin. Mining of rock phosphates in Khourigba, Morocco.
[4]. Caichun Wei, Yinian Zhu, Feng Yang, Jiao Li, Zongqiang Zhu and Hongxiang Zhu, (2013). Dissolution and solubility of hydroxylapatite and fluorapatite at 25oC at different pH. Res. J. Chem. Environ. 5 Pages.
[5]. Zhu Y., Zhang X., Chen Y., Xie Q., Lan J., Qian M. and He N., (2009). A comparative study on the dissolution and solubility of hydroxylapatite and fluorapatite at 25oC and 45oC, Chem. Geol, 268, 89-96

Abstract: Aromatic and heteroaromatic compounds have been sulfonated with NaHSO3 in presence of silica adsorbed Perchloric acid (HClO4), and Potassium bisulfate (KHSO4). Under conventional solvothermal and solvent free Mortar-Pestle grinding technique, these reactions provide their respective sulfonic acids as products in better yields within 2.5-4 hr. (HClO4), 3.5-5 hr. (KHSO4) in conventional solvothermal conditions. However, in the Mortar-Pestle grinding technique reaction times are strangely reduced to 8-10 min. (HClO4), 9-12 min. (KHSO4), and products yields also increased. Additionally, silica adsorbed perchloric acid, potassium bi sulfite catalysts could be re-used for at least three or four cycles

Keywords: Synthesis of aryl sulfonic acids; NaHSO3; Silica adsorbed Perchloric acid, and Silica adsorbed Potassium bisulfate; Efficient green grind stone technique

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Abstract: 1-(2-(dimethyl amino)-2-(4-substituted phenyl) vinyl) (methyl) amino)-4-(trifluoromethyl) thiazol-5-yl) ethan-1-one derivatives were synthesized and characterized by elemental analysis, IR, 1H-NMR, 13C-NMR and Mass spectral studies. In silico studies revealed a good interaction between thiazole derivatives and AMPK binding sites. The analogs were tested for their in vitro cellular viability and glucose uptake on 3T3-L1 adipocytes based on the significant report of in silico screening. The findings showed that 1-(2-((1-(Dimethyl amino)-2-(2-nitrophenyl) vinyl) (methyl)amino)-4-(trifluoromethyl) thiazol-5-yl) ethan-1-one derivative greatly improved glucose utilization efficiency and protected cells from insulin resistance.

Keywords: Thiazole derivatives, 3T3-L1 adipocytes, glucose uptake, in silico modeling, in vitro studies.

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