In this study, a series of new sulfone derivatives containing a sulfonohydrazide moiety were synthesized and their structures were determined using 1H NMR, 13C NMR, and HRMS. Then, the in vitro antibacterial activities against Xanthomonas oryzae pv. oryzae (Xoo) and Xanthomonas axonopodis pv. citri (Xac) were evaluated by performing turbidimeter test. Bioactivity results showed that compound 2-(4-

Oxygen is industrially produced by cryogenic distillation but the process is energy-intensive. Perovskite membranes can provide an economical solution for oxygen production because of low energy input. However, the technology is not commercialized due to one of the challenges which is sealing the membrane at high temperature. Unfortunately, there is no universal sealant that can be used for all perovskite

Unfortunately the original article was published Online with incorrect entries as given below in the Table 3.

Excessive CO2 emissions and alternative energy fuels are two major difficult issues. The utilization of CO2 into fine chemicals is an optimal route. Diethyl carbonate (DEC) is an extremely versatile chemical intermediate. DEC is used in gasoline, pharmaceutical, chemical and other fields. DEC synthesis from CO2 and ethanol is a typical green synthetic route. Ni–Cu@Na3PW12O40 catalysts were synthesized

Two new photoluminescent multinuclear Cu(I) cluster complexes supported by monoanionic bidentate ligand N-methylbenzimidazolethiolate (Me-bimt–), [Cun(Me-bimt)n] with n = 4 (1) and 6 (2), have been synthesized and structurally characterized by single-crystal X-ray diffraction analysis. For 1 and 2, the Cu(I) ions and the Me-bimt– ligands construct a cubane-type {Cu4S4} and a hexagonal-prism {Cu6S6}

Macroayclic complexes of Ni(II), Cu(II) and Co(II) were synthesized via the reaction of 1,4-bis(o-aminobenzyl)-1,4-diazacycloheptane (L) with the respective metal salts. The polyamine ligand and the corresponding complexes were characterized by mass spectrometry, elemental analysis and FT-IR and for [CuL](ClO4)2 (2), by a single crystal X-ray structural analysis which revealed the copper was in a square

A rapid and inexpensive hydrothermal process was employed for the synthesis of a nanocomposite composed of zinc/aluminum-layered double hydroxide with carbonate interlayer anions and graphene oxide (Zn/Al LDH-GO). Fourier-transform infrared spectroscopy, scanning electron microscopy, Brunauer–Emmett–Teller area analysis, and X-ray diffraction technique were employed for the characterization of the

A poly (4-aminobenzene sulfonic acid)-modified glassy carbon electrode (p-ABSA/GCE) was fabricated by electropolymerization. It was found that phentolamine mesylate, an effective and important cardiovascular dilatation drug with low redox activity at the glassy carbon electrode (GCE) can produce a sensitive well-defined anodic peak current at p-ABSA/GCE. Investigation indicated that the oxidation of

This paper proposes that Ca2+ in steel slag (SS) has a weak early hydration activity when SS and granulated blast-furnace slag (GBFS) are used as alkali-activated cementitious materials. Herein, alkaline activators and Ca(OH)2 are used as indicators of Ca2+ reaction in the SS and GBFS system. It is found that the 28-day compressive strength of the cementitious material with 2 wt% Ca(OH)2 addition increased

Interference of endogenous components present in biological fluids has a profound effect on the performance of LC–MS/MS-based assays. The present work evaluates the effect of plasma matrix components during sample preparation for accurate and precise determination of valsartan, clindamycin and mesalamine by LC–ESI–MS/MS. The methods were thoroughly assessed using different approaches for sample preparation

We developed an environmental recycling process for textile dyeing sludge that involved a magnetizing roasting–magnetic separation process followed by the preparation of a ceramic filter. The optimal parameters for the magnetizing roasting process included blending the textile dyeing sludge with 5.0% content of coal and roasting at 800 °C for 45 min. The main iron-bearing mineral (Fe2O3) was converted

Sulfonphthaleine dyes are important class of pH indicators with some applications in novel sensors. In this paper, the authors present a theoretical study to elucidate the effect of physical factors on the halochromic behavior of the sulfonphthaleine dyes. The studied sulfonphthaleine dyes are phenol red, cresol red, bromophenol blue and the physical factors such as temperature, pressure, dielectric

We have designed and synthesized phthalimide-Schiff base-coumarin hybrids 8a–b, 9a–d, 10a–b, and 11a–d and evaluated them for α-glucosidase inhibitory potential against yeast form of this enzyme. For the synthesis of title compounds 4-hydroxybenzaldehyde, 4-hydroxy-3-methoxybenzaldehyde, 2-hydroxybenzaldehyde, 2-hydroxybenzaldehyde derivatives, coumarin-3-carbohydrazide, and coumarin-7-yloxy-acetohydrazide

The regularities of the influence of the colloid-chemical state on the analytical signal of cationic surfactants in solutions of associates with the counterion have been investigated. These studies have carried out to create rational conditions for the determination of organic cations using analytical systems with reduced influence of colloidal aggregation of analytical forms. The significant influence

The present work is performed to assess the hydrodynamic parameters and mass transfer coefficients in a PRDC column for the chemical reaction systems. By considering the selective extraction of molybdenum from tungsten, the extraction parameters and synergistic enhancement factor were interpreted at the batch experiments. In the column experiments, the impacts of operating conditions such as the agitation

A Schiff base of 4E,10E-4-(2-(4-nitrophenyl)-N-((1H-indol-3-yl)methylene) benzenamine was synthesized and characterized by 1H&13C-NMR, FT-IR, and ESI–MS spectroscopy. UV–visible and fluorescence studies were explored for chemosensor ICPA to detect Ni2+, Fe3+, and Mg2+ by fluorescence chemosensor “turn-on” method in 10 mM HEPES buffer in EtOH/H2O (1:4, v/v) medium. Chemosensor ICPA binds with the selective

Some materials that are active heterogeneous catalysts for the breakdown of non-ionic aromatic solutes in water are found to act as potentiometric sensitizers for same solutes. As an example, here the aromatic water pollutant, benzyl alcohol, was sensed with a limit of detection below its potability limit of 19 μM. Our findings are rationalized on the grounds that both catalysis and sensing rely on

In this study, the presence and absence of ionic liquids as a carrier in the SLM system was investigated for the extraction of praseodymium and neodymium ions from the NdFeB magnet-leaching solution. The rate of permeability coefficient in the ion transport process inside the supported liquid membrane was studied by utilizing the variation in the acidity of the source and stripping phases and the role

Arabinogalactan (AG) and sulphated arabinogalactans which are products of chemical modification of arabinogalactan polysaccharide with anticoagulant properties were studied by experimental infrared (IR) spectroscopy combined with density functional theory simulations. Mutual analysis of experimental and theoretical IR frequencies indicates that the discrepancies between experiment and theory is caused

AbstractThe fabrication of ZnO–SiO2 (ZS) composite found to be a great challenge owing to the disadvantage of the recent method such as high temperature and multistep process. To this end, a new and rapid method for fabricating zinc oxide (ZnO) and ZS composite particles by the simple electrospray method was developed. Results from this method provide a free agglomeration and smaller particle size

Tetrafluoro-λ6-sulfanyl (–SF4–) was synthesized via oxidative fluorination and used as a bridging group to bond perfluoroalkyl to phenylene. As a result, perfluoroalkylphenyltrichlorosilane was prepared by hydrosilylation using perfluoroalkylstyrene as a raw material under platinum catalytic conditions. And the corresponding monolayers produced a coating on silicon surfaces by spontaneous self-assembly

Synthesis of nanoparticles (NPs) from common food waste is an eco-friendly and cost-effective method. The present communication reports one-pot biosynthesis of silver nanoparticles (AgNPs) from Citrus sinensis (orange) peel extract (OPE). A clear synthesis of monodispersed AgNPs with average size of 22 nm has been indicated by UV–Vis spectrophotometry, dynamic light scattering and transmission electron

AbstractTwo dinuclear complexes of [LCu(Cl)(μ-Cl)CuCl3][LCu(Cl)(μ-Cl)CuL(H2O)]Cl, 1 and [LCu(Br)(μ-Br)]2Br, 2, with a tridentate ligand of 3-((pyridin-2-ylmethyl)amino)propanamide, L, were prepared and characterized by physicochemical (elemental analyses, molar conductance measurements, thermogravimetry) and spectroscopic (IR, UV–vis) data. The crystal structures of compounds have been identified by

In recent years, iron oxide nanoparticles have demonstrated great potential in biomedical applications due to their non-toxic role in biological systems. Also, the magnetic and semiconductor properties of iron oxide nanoparticles can lead to multifunctional applications in medicine. These nanoparticles have been developed as antibacterial, antifungal, and anticancer. For cancer treatment and diagnosis

In this paper, polymeric graphitic carbon nitride (pgCN) with disordered in-plane and ordered inter-plane structure was prepared via a two-step method of low-temperature solvothermal synthesis and post-calcination, using dicyandiamide and cyanuric chloride mixture as raw materials and acetonitrile as solvent. Disordered in-plane structure of the pgCN was confirmed by X-ray diffraction (XRD), transmission

The crystal and molecular structure of copper(II) 2-chloronicotinate (2-Clnic) of the composition [Cu(2-Clnic)2(pia)2] (pia = Picolinamide) (1), [Cu(2-Clnic)2(nia)2] (nia = Nicotinamide) (2), [Cu(2-Clnic)2(nia)2(H2O)]·H2O (3), [Cu(2-Clnic)2(mna)2(H2O)2] (mna = N-methylnicotinamide) (4), [Cu(2-Clnic)2(2 pm)2] (2 pm = 2-Pyridylmethanol) (5), and [Cu(2-Clnic)2(4 pm)2(H2O)2]·2H2O (4 pm = 4-Pyridylmethanol)

The present paper concerns the partial updraft gasification of wheat–rye straw pellets, using air as a gasification agent. The aim of this paper is to examine the impact of biochar and ash outflow during the updraft gasification process on the parameters of the latter. For this purpose, a series of five experiments with different parameters of biochar and ash outflow and a reference experiment were

AbstractA platinum-substituted alumina-promoted sulfated zirconia (PtAu/SZA) was prepared and used for the conversion of isobutane to n-butane, aiming to optimize the ethylene feedstock in the steam thermal cracking process and increase the ethylene yield. PtAu bimetallic catalysts showed higher catalytic activity than Pt-alone catalyst, and the enhancement is attributed to PtAu alloying. By diluting

Multi-wall carbon nanotube (MWNT) was chemically oxidized by utilizing sulfuric and nitric acids in a ratio (2:1 v/v). The oxidized-MWNT was decorated with gold (Au) and gold oxide (Au2O3) nanoparticles by using precipitation approach. The Fourier transform infrared (FTIR) and zeta potential techniques verified oxidization of MWNTs with oxygen functional groups. The X-ray diffraction (XRD), ultraviolet–visible

Volatile constituents in mango ‘Ataulfo’ (Mangifera indica L.) fruit were isolated by HS–SPME and solvent-assisted flavor evaporation (SAFE). Analyses were performed by GC–FID, GC–MS and GC–O. Aroma extract dilution analysis (AEDA) and odor activity value (OAV) were applied to find the odor-active compounds. A total of 108 volatile compounds comprising > 99% of the SAFE extract were identified. Major

An anionic metal organic framework (Me2NH2)2[In2(H4TTBA)2](DMF)(H2O)15 (In-MOF-1; H4TTBA = 2′-amino-[1,1′:4′,1″-terphenyl]-3,3″,5,5″-tetracarboxylic acid, DMF = N,N-dimethylformamide) with suitable channels and PtS-type topology was synthesized and characterized. In-MOF-1 has three types of channels along a, b, c axis that displays the adsorption and selective separation ability toward the low concentration

The main objective of this study is to compare the extraction efficiency, phenolic composition and antioxidant activity of fallen red leaves of the tropical almond (Terminalia catappa) using two extraction methods. The leaf was extracted under different conditions: soaking (12 and 24 h) and pulse electric fields (0.5 and 0.75 kV/cm). The results demonstrated that the highest total phenolic content

In this work, hyperbranched polyurethane elastomer (HBPUE) electrolyte and aluminum foil (Al) were joined together by anodic bonding. It provides a possibility for packaging of flexible devices to use anodic bonding. The HBPUEs were designed and prepared via prepolymerization method cured at room temperature using polypropylene glycol (PPG), toluene-2,4-diisocyanate(TDI), lithium bis(trifluoromethanesulfonyl)imide

AbstractThe reaction between rare earth oxychloride (REOCl) and water was investigated. X-ray diffractometer, volumetric titrations, FTIR spectrograph and scanning electron microscope were used to determine the reaction process and the reaction products. It was found that the reaction could be concluded as follows: 5REOCl(s) + 5H2O(l) = 2RE2(OH)5Cl(s) + RE3+(aq) + 3Cl−(aq). Based on this reaction,

Reactive liquid–liquid extraction (RLLE) was applied for the removal of 2,4-dichlorophenoxyacetic acid (2,4-D) from its aqueous solution. Deep eutectic liquids (DELs) was used as extractant in a conventional solvent (diethyl succinate-DES) through RLLE. Various menthol-based DELs were prepared. Menthol was used as hydrogen bond acceptor, whilst formic acid and acetic acid were hydrogen bond donor for

In this study, the viscosity of the fullerene/hydraulic oil nanofluid has been investigated experimentally. The purpose of this research is improving the properties of hydraulic oil by adding fullerene nanoparticles at the volume fractions of 0.05% to 2% in the base fluid. Hence, the nanofluid has been prepared by a two-step method using an ultrasonic homogenizer. The results showed that nanofluid

In this work, NiO supported mesostructured silica nanoparticles (MSN) were synthesized via the urea–nitrate combustion method using urea as fuel and nitrate salts as oxidants with the different urea/nitrate ratios and calcination duration. The physicochemical properties of catalysts were investigated by several techniques, including N2 physisorption measurements, powder X-ray diffraction, N2-BET isothermal

AbstractAn improved, practical and efficient protocol for the production of pretomanid (1) is described. Key to this optimization was the design and development of a novel synthetic strategy, which involves the preparation of key intermediate (S)-1-(tert-butyldimethylsilyloxy)-3-(2-chloro-4-nitro-1H-imidazol-1-yl) propan-2-ol (6) from 2-chloro-4-nitroimidazole (2) and (S)-epichlorohydrin (3) through

In this work, an annulus-type recirculated batch reactor is designed to study the influence of different process parameters on the corrosion rate of metals under diffusion-controlled conditions. The effect of solution flow rate (for both laminar and turbulent flow regimes), physical properties of the solution, annulus geometrical parameters, and the effect of adding benzotriazole inhibitor on the corrosion

In order to discover novel compounds with inhibitory activity against 3-phosphoglycerate dehydrogenase (PHGDH), a series of thiourea derivatives were designed and synthesized based on the structural modification of compound 5d. Compound 5d emerged from the visual database of ChemDiv of 200,000 small molecules by docking score ranking. Inhibition experiments on PHGDH activity of newly synthesized compounds

Herein, this work ultrathin CuO nanosheets were synthesized by simple microwave-assisted route. The CuO nanosheets were further fabricated with polyaniline (Pani) by oxidative polymerization methodology in the presence of citric acid and potassium persulphate to finally get Pani@CuO nanocomposite. Thus, prepared CuO nanosheets, Pani and Pani@CuO nanocomposite were characterized by scanning electron

Four novel complexes [Co(μ2-suc)(bzim)2(MeOH)2]n (I), [Co(μ2-suc)(bzim)2(H2O)2]n (II), [Co(μ2-suc)(2-Mebzim)2(H2O)2]n (III) and [Co(μ2-suc)(2-Etbzim)2]n (IV) (suc = succinate dianion, bzim = 1-H-benzimidazole, 2-Mebzim = 2-methyl-1-H-benzimidazole and 2-Etbzim = 2-ethyl-1-H-benzimidazole) were synthesized and characterized by elemental analysis, single-crystal structure analysis, infrared and electronic

This review intends on chemical recycling of the carbon fiber-reinforced epoxy resin composites (CFREPs) for future applications. Many recycling methods were investigated such as chemical, solvolysis, glycolysis and hydrolysis. Mechanical recycling produces poor-quality carbon fibers (CFs) which exhibits short length and lower tensile modulus, whereas thermal recycling process, especially pyrolysis

There is growing concern regarding the widespread use of fluoroquinolones (FQs) and their presence in the aqueous environment due to the rapid antibiotic resistance. In this study, wet chemistry experiment and DFT calculation were employed to investigate the adsorption of enrofloxacin (ENR), the most frequently used veterinary FQs, by carbon nanotubes (CNTs). The result revealed that the surface oxidation

Apigenin is the bioactive component of parsley (Petroselinum crispum L.) with numerous therapeutic properties. In this study, microwave-assisted extraction (MAE) and ultrasonic-assisted extraction (UAE) methods were used for the isolation of apigenin from parsley leaves. The effect of several factors on the extraction yield of apigenin was investigated. In UAE method, under the best extraction condition

Herein, a simple, green and low-cost method was established to synthesize l-proline-stabilized copper nanoclusters (l-Pro-Cu NCs) with good water solubility, excellent photostability and resistance to sodium chloride. A series of methods including fluorescence spectroscopy, UV–Vis absorption spectroscopy, Fourier transform infrared spectroscopy, transmission electron microscopy and X-ray photoelectron

Graphene has attracted great attention owing to its exceptional electrical, mechanical, optical, thermal and antimicrobial properties. Graphene oxide (GO) and reduced graphene oxide (rGO) are two important derivatives of graphene, and the latter can be achieved through the reduction reaction of GO. Many methods including reductant reduction, irradiation reduction, electrochemical reduction and microbial

A sonochemical synthesis was performed to synthesize nanosheets of an innovative lead (II) metal–organic coordination polymer (CP) [(PbN3Q)2]n (1) (Q– = 8-hydroxyquinolinate). For precise characterization, scanning electron microscopy, elemental analysis, IR spectroscopy, X-ray powder diffraction, and single-crystal X-ray diffraction scrutiny were conducted. The X-ray structural examination indicated

Nuclear magnetic resonance (NMR) spectroscopy, also known as magnetic resonance spectroscopy, is a preeminent and noninvasive analytical technique that provides detailed information about the structure, dynamics, reaction state, and chemical environment of molecules. The development of NMR spectroscopy has led to the awarding of many Nobel Prizes, and today NMR spectroscopy serves as an important and

A green and straightforward emulsification liquid–liquid micro-extraction combined with the HPLC approach was established for the determination of malachite green (MG) and crystal violet (CV) in shrimp water samples using deep eutectic solvent (DES). The DES was made up of thymol and camphor at a molar ratio of 1:1, which was used as extraction agent, and nonionic surfactant TMN-10 (branched secondary