Schiff base orthosilicate 7 was synthesised and its inhibitory properties against corrosion when deposited on the 2024-T3 aluminium alloy in 0.05 mol·L−1 NaCl were investigated by electrochemical impedance spectroscopy, potentiodynamic polarisation and scanning electron microscopy technique. Po...

The aim of this case- control study was to investigate the association between preterm birth (PTB), MICA-129 A/G dimorphism and sMICA levels. Fifty pregnant women with singleton pregnancy and previous PTB, or clinic diagnostic of threatened preterm labor in the actual pregnancy, or cervical leng...

Electrochemical nanomaterial-based resistive switching devices (memristors) have recently attracted significant research interest because of their low cost and potential applications in nonvolatile data storage and artificial neural networks. In this paper, we report an electrochemical method to...

The present study concerns corrosion of aluminium and copper in ultra low sulphur diesel fuel and its blends with rapeseed methyl ester. Tests were carried out at wide ranging contents of rapeseed methyl ester (0%, 50%, 75% and 100%) at 80 °C for 600 h. At the end of the immersion test a compar...

The adsorption of copper ions was investigated using pyrolusite ore as a low-cost alternative adsorbent source. Pyrolusite, which contains mainly MnO2, is a manganese ore. The effects of the initial concentration of copper(II) ions, initial pH of solution, adsorbent dosage and particle size on t...

Photoluminescence and thermally stimulated luminescence of synthetic and natural (morion and smoky) α-quartz crystals doped with aluminum and alkali ions were studied. The samples were examined both untreated and subjected to substitution of alkali ions for copper or silver ions. The photolumin...

The use of industrial by-products such as fly ash and slag have become very prevalent in soil stabilization owing to its suitable physical and mechanical properties, and economical advantages. However, fly ash and slag have been identified as the potential source of toxic substances, and may pos...

In this study, we examined how aluminium corrosion in Al–Cu/PANI galvanic couples in a marine environment is influenced by deposition of polyaniline (PANI) on copper. Polarization curves and immersion assays in 0.1 M NaCl were performed. The morphologies of etched Al and corrosion products were...

The present electrocatalyst consists of copper and copper sulfide nanoparticles dispersed on graphene nanoflakes (GNFs), a stack of 5–20 highly crystalline graphene layers having typical side lengths of 100 by 100 nm. Plasma-based functionalization is used for adding covalently bonded nitrogen ...

Titanium dioxide (TiO2) nanoparticles (NPs) encounter heavy metals in the environment under different scenarios. However, the mechanism of their joint toxicity effects on Daphnia magna remains vague. This study assessed the effects of hydrophobicity of TiO2 NPs (TDONPs) and exposure scenarios on...

A growing interest is currently directed to find an efficient NO and CO2 gas carriers for biomedical applications. The gas adsorption properties of sodium- (Na-X) and copper- (Cu-X) containing FAU nanozeolites toward nitric oxide and carbon dioxide were studied. The materials were fully characte...

The Photocatalytic activity of bismuth doped SrAl2O4 ceramic powders was studied by monitoring the degradation of the Methylene Blue (MB) and Congo Red (CR) dyes in water solution under ultraviolet (254 nm) and solar irradiation. The SrAl2O4:xBi powders were synthesized by a combustion method wi...

Cerium-doped copper aluminate (CuAl2-xCexO4, x = 0, 0.01, 0.03, and 0.05) photo-catalysts were synthesized by combustion route with an aim to improve the photocatalytic activity of copper aluminate under visible-light. The synthesized compounds were analyzed by standard analytical instruments su...

Bismuth co-doped long persistent phosphor (LPP) powders were obtained by a combustion synthesis technique followed by a post-annealing under carbon atmosphere. Bismuth content was varied from 1.0 to 15.0 mol%. X-ray diffraction analysis revealed that the powders show mainly a mixture of three ph...

Nominal compositions Bi2CrxAl4−xO9 with 0.0≤x≤2.0 (Δx=0.2) were prepared using appropriate amounts of nitrates dissolved in glycerine and heated at 800 °C for 24 h as we previously used for the preparation of solid solution series Bi2Mx/M′4−xO9 (M/M′=Fe/Al, Ga/Al and Fe/Ga). The samples we...

In this study, bismuth doped copper aluminate (CuAl2-xBixO4 x = 0, 0.01, 0.03, 0.05 and 0.10) nanoparticles were prepared via the solution combustion method and characterized by numerous procedures like powder X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, diffuse refle...

In the current work, zinc aluminate and bismuth doped zinc aluminate (ZnAl2-xBixO4, x = 0, 0.05, 0.1) spinel oxide nanoparticles were synthesized by co-precipitation method. The obtained samples were characterized by powder XRD, FT-IR, DRS, SEM-EDX and BET. Photocatalytic degradation of zinc alu...

PBr3-mediated reductive deoxygenation of α-aryl-pyridinemethanols to provide arylmethylpyridines is described, the alcohol substrate scope is explored, free radical trap TEMPO (2,2,6,6-tetramethyl-1-piperidinyloxy) is introduced, and the hydrogen source of the methylene product is defined. The ...

The use of high-performance liquid chromatography for the quantification of glycosaminoglycan disaccharides has been hampered by the inability to isocratically resolve the chondroitinase digestion products 2-acetamido-2-deoxy-3-O-(β-d-gluco-4-enepyranosyluronic acid)-d-glucose (ΔDi-HA) and 2-a...

The triplet ground state of the 3,5-dichloro-aminophenyl cation (3Ar+), generated by photolysis at 77 K of the parent arenediazonium salt, exhibits the strongest dipolar interaction in its EPR spectrum (D>0.3 cm−1) found so far for any known aryl cation. It also shows highenergy site splitting, ...