Abstract In this study, possibilities of increasing the efficiency of electrothermal regeneration of the granular BPL carbon were evaluated. The adsorbent was used to purification of propan-2-ol (IPA)-laden air streams with specified concentrations ranging from 2 to 11 g/m3. The experiments were carried out in the fixed beds containing either a single layer of BPL 4 × 6 carbon or a double layer of

In the present work, the molecules, N-(4-chlorophenyl)-2-[6-(benzoyl)-2-benzothiazolinone-3-yl]acetamide (CBBA), N-(6-methyl-2-pyridyl)-2-[6-(2-chlorobenzoyl)-2-benzothiazolinone-3-yl]acetamide (MCBA), N-(3-Chlorophenyl)-2-[6-(2-fluorobenzoyl)-2-benzothiazolinone-3-yl]acetamide (CFBA) and N-(6-methyl-2-pyridyl)-2-[6-(2-fluorobenzoyl)-2-benzothiazolinone-3-yl]acetamide (MFBA) have been synthesized followed

Silica particles synthesized by precipitation method were in situ capped with Ethylenediaminetetraacetic acid (EDTA) and Hexamethylenetetramine (HMTA) compounds aiming to increase their biocompatibility. XRD, FTIR, TG/DSC, DLS and SEM analyses were performed to determine the crystalline structure, attached functional groups, thermal behaviour, size and morphology of silica particles. XRD analysis showed

Two new complexes, [M(4-CNB)2(DENA)2(H2O)2] (where M: Co and Mn, 4-CNB = 4-cyanobenzoate and DENA = N,N’-diethylnicotinamide), were synthesized and characterized using different techniques (elemental analysis, FT-IR Spectroscopy, single-crystal X-ray diffraction, and TGA/DTA analysis). Looking at the crystal structure of the complexes, the metal atoms are coordinated by two nitrogen atoms from two

The aim of this research is evaluation of the performance of Pistacia khinjuk aerial part extract (PKAPE) on the corrosion of carbon steel in 2.0 M hydrochloric acid and 1.0 M sulfuric acid solutions and comparing the differences in the behavior of the extract in these two acidic environments. For this study, the classical method of weight loss and electrochemical methods [open-circuit potential (OCP)

Peptidoglycan is an essential component of the bacterial cell wall and is required for the survival of bacteria. ATP-dependent MurC–F ligases are responsible for the early stages of peptidoglycan biosynthesis. Second in the series, MurD catalyzes the addition of d-glutamic acid to UDP-MurNAc-l-Ala which involves acyl-phosphate and tetrahedral intermediates. Due to its high specificity for d-glutamic

In this work, the green synthesis of silver-silver chloride nanoparticles (Ag@AgClNPs) has been used the plant leaf extract of Chromolaena odorata (C. odorata) as a reducing and capping agent. The effects of parameters on the formation of Ag@AgCl nanoparticles (Ag@AgClNPs such as the ratio of C. odorata raw material/water, the extraction temperature, the extraction duration, and the volume ratios of

The aim of this study was to investigate the effect of altering design variables like cross-linking and freezing temperature (at a time) on morphology of freeze-dried chitosan scaffolds and modulation of release of Diclofenac sodium (model drug). Freeze-dried chitosan scaffolds produced at − 80 °C, cross-linked with genipin, showed swelling of 163.52 ± 9.95% with sustained drug release of 26.37 ± 10

Abstract A cloud point extraction-chromogenic system for vanadium determination containing 4-(2-thiazolylazo)resorcinol (TAR), H2O2, H2SO4, and Triton X-100 was investigated. Optimal conditions for the formation and extraction of a 1:2:1 (VV:O22−:TAR) ternary complex with an absorption maximum at 569 nm were found: concentration of TAR (4 × 10−5 mol dm−3), concentration of H2O2 (1.2 × 10−4 mol dm−3)

Abstract Different reaction conditions on the conversion of lignin and monophenol yield were investigated under the catalysis of (5% Mo)-Al2O3-ZrO2; the maximum conversion rate (78.9%) and monophenol yield (31.9%) were observed at 350 °C and 0.2 g catalyst using iso-propanol, in 45 min. The GC–MS analysis revealed that the main alkyl-substituted phenols are 4-ethyl-phenol (17.7%), 4-methyl-phenol (2

In this study, the ability of nanoporous anodic alumina (NAA) for the controlled release of agrochemicals including indole-3-acetic acid (IAA) and bentazon was investigated. This study was divided into two works. In the first work, the release of IAA loaded into the NAA pores was studied, and a new two-stage mechanism was proposed for the description of this release process. The first stage was modeled

Determination of pyraclostrobin in ginseng samples by molecularly imprinted dispersive solid-phase extraction (MIDSPE) coupled with high-performance liquid chromatography (HPLC) method was developed. Molecularly imprinted polymers (MIPs) were prepared by precipitation polymerization using pyraclostrobin as template, methacrylic acid (MAA) as functional monomer, ethylene glycol dimethacrylate (EGDMA)

Products derived from wild-grown plants represent a growing segment of the modern pharmaceutical industry. In recent years, particular attention has been paid to their application in the cosmetic industry. The content of B group vitamins in these products is important because they affect the quality of the skin, hair and nails. The determination of thiamine and riboflavin in natural products is not

A modified disposable electrode formed by immobilization of glucose dehydrogenase (DHG) onto pyrocatechol violet (Pcv)-modified graphite pencil electrode (GPE) was proposed for the flow injection (FI) amperometric glucose biosensor. Cyclic voltammetric experiments show that Pcv illustrates a good electrocatalytic effect towards the oxidation of enzymatically produced NADH. Although electrocatalytic

The paper presents the new data of gas transfer characteristics of semicrystalline poly(4-methyl-1-pentene) (PMP) as for films as for hollow fibers (HFs) with dense selective layer. The experimental data obtained earlier made it possible to calculate the gas transport characteristics of the amorphous and crystalline phases of PMP for some gases at temperature from 10 to 80 °C (below and above Tg).

An oxadiazole derivative 4-[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]-phenol (MOP) has been investigated as a protector against corrosion of mild steel tanks in Iraqi kerosene reservoirs using the Tafel approach. The extrapolation study was carried out in four temperatures (303, 313, 323 and 333 K) and five concentrations (100, 200, 300, 400 and 500 ppm) of MOP derivative. The results of the polarization

A fast, simple, green and low-cost synthesis method in aqueous solution was successfully established for the preparation of l-tyrosine protected Cu nanoclusters (Cu NCs). Subsequently, the as-prepared Cu NCs was characterized by UV–vis absorption spectroscopy, fluorescence spectroscopy, transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). It exhibited good water solubility

Landfill leachate is high-strength wastewater containing harmful pollutants and very rich in ammonia (NH3), an undesired element in wastewaters. NH3 is used as a liquid fertilizer in agriculture and as a reactant in many other fields. The present study investigated the reclamation of NH3 during the treatment of middle-age landfill leachate by direct contact membrane distillation (DCMD) with polytetrafluoroethylene

Abstract Magnetic molecularly imprinted polymers (MMIPs) were synthesized on Fe3O4 using methacrylic acid (MAA) and acrylamide (AA) as monomers, ethylene glycol dimethacrylate (EGDMA) as cross-linker and rutin as a template under nitrogen atmosphere in about 90 min. Fourier transform infrared spectroscopy, electron microscopy, vibrating sample magnetometer (VSM), thermo-gravimetric analysis (TGA),

A novel acridine-linked phenanthroline ligand, N-(1,10-phenanthrolin-5-yl)acridine-9-carboxamide, (PAC) was synthesized by N,N’-dicyclohexylcarbodiimide (DCC) coupling between acridine-9-carboxylic acid and 1,10-phenanthroline-5-amine. A set of new complexes of general formulae [M(PAC)(N3)2] and [M(PAC)2(N3)2] where M = Cu(II), Ni(II), and Co(II) metal ions were synthesized and characterised by spectroscopic

Abstract Multidrug resistance (MDR) is a great concern worldwide. There is a great need to develop new drugs with the potential to attack target cells that show MDR phenotype. The purpose of this study was to assess the reversing effect of new N-alkyl-3,4-diarylmaleimides on Bacillus subtilis resistant to rhodamine 6G as an indicator of its activity as modulators of efflux pumps and their additional

Abstract A new process for extracting gold from refractory gold ore and manganese from manganese anode slime was developed by combining the oxidative pretreatment of refractory gold ore and reductive leaching of manganese anode slime. The response surface methodology was used to optimize the effects of time, temperature, and sulfuric acid concentration on the leaching efficiency of manganese. The manganese

Abstract In this study, we report a higher electrochemical performances of Li4Ti5O12 (LTO) anode material via solid method, then adding different contents of Fe2O3 into LTO (FxLTO, x = 0.1, 0.2, 0.3, 0.4) secondary calcined. The study shows that pure LTO holds the highest electrochemical performances at 750 °C. Additionally, F0.2LTO demonstrates an outstanding discharge capacity of 251.9 mAh g−1 at

Abstract The discovery of acetylcholinesterase inhibitors is important for the treatment of Alzheimer’s disease (AD), known as the most common type of dementia. Due to the side effects of commonly used acetylcholinesterase inhibitors, studies for the detection of new inhibitors are increasing day by day. In this study, we investigated the effects of some sulfonamide derivatives (S1–S4 and S1i–S4i)

Abstract Organic contamination has been recognized as a matter of concern, and simultaneous monitoring of various organic contaminants in the complex environment has always been a part of the efforts of scientists. In the present study, settled house dust (SHD) was selected to establish HPLC fingerprint method for simultaneously evaluating organic matters in an indoor environment. The relative standard

Abstract To discover and develop novel active molecules, in this study, a series of novel pyrethrin derivatives containing 1,3,4-oxadiazole and thioether moieties were designed and synthesized. Bioassay results revealed that some of the target compounds possessed good insecticidal activities against Plutella xylostella (P. xylostella), Vegetable aphids (V. aphids), and Empoasca vitis (E. vitis), respectively

Abstract A new azo-dye reagent was prepared by the reaction between sulfacetamide and rutin compounds. The new synthesized reagent of (E)-N-((4-((5-(5,7-dihydroxy-3-3-[3-α-l-rhamnopyranosyl-(1 → 6)-β-d-glucopyrano-syloxy]-4-oxo-4H-chromen-2-yl)-2,3-dihydroxyphenyl)diazenyl)phenyl)sulfonyl)acetamide [NDRGA] was characterized by FT-IR, 1HNMR, mass spectra and elemental analysis measurements and then

Abstract A novel HPLC method was proposed for the quantitation of vortioxetine, which is a new antidepressant drug, in tablets. Separation was performed on a Zorbax Eclipse Plus C18 (3.5 µm particles, 4.6 × 50 mm) column at 35 °C with 1.0 mL/min flow rate and chlorpromazine was selected as internal standard. Box–Behnken design, a design of experiment (DoE) method, was applied to explore the influences

Abstract Binding of iprodione (IPR), a dicarboxamide fungicide, to the carrier protein in bovine circulation, bovine serum albumin (BSA) was characterized with the help of fluorescence, absorption, circular dichroism and Fourier transform infrared (FTIR) spectral measurements in combination with computational analysis. The increase in the KSV (Stern–Volmer constant) value with temperature and absorption

Abstract The overpotential of hydrogen evolution reaction is one of the aspects which results in low efficacy of water electrolysers. There is a constant search for new ways to improve the catalytic activity, especially of nickel-based materials. Addition of lanthanum results in synergism and high activity towards the hydrogen evolution reaction. Due to the application of deep eutectic solvents which

Abstract Zinc(II) mefenamate [Zn(mef)2] (1) along with two novel Zn(II) crystalline complexes with Hmef (mefenamic acid) [Zn(dmso)2(mef)2] (2) and [Zn(cyclam)(mef)2] (3) were synthesized and characterized by infrared spectroscopy, elemental and thermal analysis. Crystal structures of complexes 2 and 3 were determined by single-crystal X-ray structure analysis. The biological activity of complexes was

Abstract This study is focused on finding an optimal preparation of the human scent samples for their detailed chemical analysis in connection with the possible forensic identifications of human individuals in the future. At the present time, the scent identification of people is carried out nearly exclusively using specially trained dogs. It is assumed that the human scent contains a certain group

Abstract Production of biofuels from biomass is expected to benefit the society and the environment. At present, bio waste residues processing includes hydrolysis, dark fermentation, photofermentation, pyrolysis, gasification, and chemical synthesis. As the composition and the chemical structure of organic substances affect the efficiency of mentioned processes, it is believed that the glucose concentration

Abstract One of the current methods of converting pyrolysis oil and its aqueous phase into more useful biofuels with higher heating value is by the steam reforming technique. In this study, a thermodynamic model for the steam reforming of the aqueous phase of biomass bio-oil was developed. The optimal values of the process parameters for the steam reforming of the aqueous phase of biomass bio-oil are

Abstract The present work aims to combine carbon quantum dots (CQDs) with the good water solubility, biocompatibility, and low toxicity and nano-sized silver sulfide with excellent antibacterial effect in the synthesized composite. The composite was further treated with polyethyleneimine (PEI) and conjugated with graphene oxide (GO). The as-prepared composite Ag2S–CQDs–PEI–GO exhibits a core of Ag2S

Abstract This study examines the yields of solid residue and by-product from the microwave-assisted acid hydrolysis of lignocellulosic poplar wood for levulinic acid production. The aim of this study was to optimise levulinic acid production via response surface methodology (RSM) and also investigate the effect of reaction conditions on other products such as furfural, solid residue, formic acid and

Abstract Terbium-based coordination polymer (Tb-CP) microspheres with diameters ranging from 0.8 to 1.5 μm were prepared from Tb(NO3)3 and 2-nitroterephthalic acid at 160 °C for 6 h. Their composite film with polymethyl methacrylate was prepared by spin-coating method. The products were fully characterized by SEM, TEM, PXRD, TG, FT-IR, and PL. Eu3+-doped Tb-CP microsphere and its film were prepared

Abstract This study aimed to develop a determination method of mycophenolic acid (MPA) in biological samples using salting-out liquid–liquid microextraction from human plasma samples based on the formation of a fluorescent complex with terbium ion and its application in quantification of the MPA in clinical samples. MPA extracted from plasma samples by salting-out liquid–liquid microextraction after

Abstract One of the therapeutic approaches in the management of type 2 diabetes is delaying the glucose absorption through α-glucosidase enzyme inhibition, which can reduce the occurrence of postprandial hyperglycemia. Based on this thought, a series of novel chloro-substituted 2-(2-methyl-1-phenyl-1H-pyrrol-3-yl)-2-oxo-N-(pyridin-3-yl) acetamide derivatives 5a–i were synthesized and their α-glucosidase

Abstract Two new metal-free organic dyes with D–A–π–A structure containing monotriphenylamine as electron donor and cyanoacrylic acid as end electron acceptor were prepared. All intermediates and organic photosensitizers were specified by analytical techniques. The cyclic voltammetry analysis was employed to examine the possibility of applying organic dyes in dye-sensitized solar cells and the results

Unfortunately the original article was published Online with some typos but the correct spelling is given below in the table.

In the original version of this article, in the acknowledgement section the project number is incorrect.

Here, we developed a sustainable solution to address the water pollution especially due to organic dye industries. Visible light-activated catalytic degradation of aqueous solution of methylene blue (MB) dye was studied by using trivalent metal ion-doped ZnO nanoparticles as a photocatalyst. The nano-photocatalysts were synthesized by microwave-irradiated solution combustion method using d-glucose

Abstract 2,5-Lutidinium bromanilate is a molecular complex that consists of bromanilic acid and 2,5-lutidine in which hydrogen-bonding interactions occur between them, producing a charge-assisted bifurcated N–H…O hydrogen bond. Bond characteristics are determined from the experimental charge density distribution of the molecular complex using the Hansen–Coppens model. The electron density, topological

An aspirin-ligated cisplatin derivative, biasplatin, was prepared from acetylsalicylic anhydride and oxoplatin in DMF. Biasplatin was synthesized from oxoplatin and aspirin anhydride as starting materials by a substitution reaction of hydroxo leaving groups in its axial position. The obtained biasplatin was fully characterized by FTIR, 1HNMR, 13CNMR, and ESI mass spectroscopy. Biasplatin entrapped

The regioselectivity of a one-pot hydrogenation/alkylation reaction of coumarins 1a and 1b with series of alkyl halides has been elucidated as a complementary work to reaction of acylation with the same coumarins. Reaction conditions have provided formation of only C-alkylation products with good to high yield. The results from the experiments are of significant importance to predict reactivity of

Abstract In this work, we reported hydrogen bonding-induced gelation performance of three benzenesulphonamido-based anionic amphiphiles. The self-assembled gel forms well-defined morphology which typically entrap and release vitamin B12 with retention of activity at room temperature. The studied sulphonamido-based amphiphiles successfully form gel emulsion in several organic solvents when a critical

The ionic liquid chlorination (1-amino-2-propyl alcohol)-3-buthylimidazole containing amino and hydroxy from the difunctional group is newly synthesized, the characterization of which is analyzed with NMR. It can catalyze CO2 and propylene oxide (PO) under certain conditions for preparation of propylene carbonate, with the conversion of 80.1% and the selectivity of 92.5%, which has superior performance

This study reports the extraction of U(VI) using poly(vinyl chloride)-based polymer inclusion membrane (PIM), possessing the extractant alamine336 and the plasticizer Polyoxyethylene alkyl ether (POE). The effects of transport parameters such as alamine336 and POE concentration in the PIM composition, uranium and sulfuric acid concentration in the feed phase, and the receiving phase type and concentration

Nickel–zinc ferrite (Ni0.5Zn0.5Fe2O4) nanosorbent was prepared and used for the efficient simultaneous preconcentration of arsenite and arsenate ions from aqueous solutions. The prepared nanoparticles were characterized by XRD measurements which indicated that the Ni0.5Zn0.5Fe2O4 nanoparticles were synthesized well. The SEM results showed an average diameter of 27 nm for the nanoparticles. The adsorption

Si-modified mesoporous alumina with high thermal stability was synthesized from coal fly ash through a facile coprecipitation method using NH4HCO3 and NH4Al(SO4)2. The effects of Si dopant contents on the characterization of alumina were investigated using X-ray diffraction, Fourier transform infrared spectroscopy, N2 adsorption–desorption method and transmission electron microscopy. The results show

Online First version of this article was made available online

Mordenite zeolite is considered a molecular sieve because of its adsorbent material characteristics used in the industry as a gas separator. High Si/Al ratios of this zeolitic material in its crystal lattice provide high thermal stability in the structure. To minimize the production costs, this work synthesized the mordenite zeolite in absence organic template (high costs of production). For this purpose

In the original version of this article, unfortunately S.K. Jana was omitted as an author.

Flue gas desulfurization (FGD) technologies are applied to minimize SO2 emission to the atmosphere and prevention of acid rains. Magnesium oxide (MgO) is one of the common sorbents to capture sulfur dioxide in FGD. Pore blockage and incomplete conversion are the main problems of sorbents such as CaO and MgO. In this study, acid-washed technique as a modification method was applied to enhance SO2 adsorption

Nanoemulsions can be applied as delivery systems that improve solubilization capacity for poorly soluble drugs, and enhance the drug loading. In this work, a molecular self-assembly of a nanoemulsion composed of benzalkonium chloride as surfactant, cyclohexane as oil phase, and ethanol as co-surfactant in water, was investigated by three 1 μs coarse-grained molecular dynamics simulations. Simulation

The extraction and separation of cerium(IV) and yttrium(III) from citric acid solution using Di-2-ethylhexyl phosphoric acid, D2EHPA, in kerosene was investigated. The effects of the different parameters on the extraction process, including the shaking time, extractant concentration, phase ratio, acid concentration as well as, temperature, were separately investigated to achieve the maximum possible

Lanthanide nanoborates (LnBO3·3H2O (Ln: Dy, Tb)) were prepared in the presence of polyethylene glycol (PEG) using a buffered-precipitation method. The same procedure was performed without adding PEG to expose the chemical formulations of the samples. X-ray diffraction (XRD), thermal gravimetric analysis (TGA), Fourier transform infrared spectrum (FTIR) strongly supported amorphous lanthanide orthoborates

Triisocyano-based trinuclear gold (I), {Ph[O(CH2)4OPhNCAuPhX5]3 [X = F, complex (1), X = Br complex (2)]}, complexes are optimized at M062X/LANL2DZ/6-31G(d) level in the gas phase and molecular structures are obtained. IR, UV-Vis and NMR spectra are calculated at the same level and molecular structure of the complexes are verified. In the complexes, the environment geometry of gold (I) was almost linear

A novel phosphoryl thiourea-containing flame retardant (PSN) was synthesized and fully characterized. The influences of PSN with different phosphorus content on diglycidyl ether of bisphenol-A epoxy resin (DGEBA) cured by 4,4′-diaminodiphenylsulfone (DDS) were comprehensively evaluated via the measurement of flame retardancy, thermal performance, and mechanical property. The results showed that PSN-modified