This study evaluated short- and long-term exposure of activated sludge (AS) microbiome to cetylpyridinium chloride (CPC), a quaternary ammonium compound widely used as biocidal additive or cationic surfactant. Toxicity assay in batch mode showed that CPC (50 μg L−1) inhibited cell growth. Howev...

The cetylpyridinium (CP) dipicrylamide (DPA) ion pair has been synthesized and characterized by the FT-IR and NMR (1H and 13C) spectroscopy, theoretically studied and tested as ion-exchanger for cetylpyridinium selective electrodes. The molecular dynamics and further DFT optimization indicate fa...

The adsorption properties of two cyclodextrin-epichlorohydrin polymers to remove Direct Red 83:1 textile dye from wastewater solutions was evaluated. Adsorption studies were performed in a batch reactor, and the efficiency of the polymers under different parametric values such as contact time, a...

In this paper, we study Ramsey-type problems for directed graphs. We first consider the k-colour oriented Ramsey number of H, denoted by r→(H,k), which is the least n for which every k-edge-coloured tournament on n vertices contains a monochromatic copy of H. We prove that r→(T,k)≤ck|T|k for ...

Partial least squares models were built for the direct determination of cocaine in seized impregnated smuggled materials. Measurements are based on the attenuated total reflectance middle infrared spectra (ATR-MIR) and diffuse reflectance spectra in the near range (DR-NIR) obtained directly from...

The ability to use the membrane distillation (MD) technique is envisaged as a promising approach to attain sustainable and reliable clean water supply. In this work, polytetrafluoroethylene/polyvinylidene fluoride (PVDF/PTFE) flat sheet membranes were fabricated via the thermally induced solvent...

In this study, the physical and chemical characteristics and direct aqueous mineral carbonation of red gypsum have been investigated. The characterization studies showed that red gypsum is a very potential feedstock for mineral carbonation. It is mainly consisted of CaO, Fe2O3 and SO3 along with...

The present study deals with the utilization of an inexpensive agro-industrial waste rice husk for the removal of Direct Red-31 and Direct Orange-26 from aqueous solutions in a batch mode. Experiments were carried out as function of pH, biosorbent dose, particle size of biosorbent, initial dyes ...

The present work describes the biosorption potential of low cost and easily available rice husk for the adsorptive removal of Direct Red-31 and Direct Orange-26 textile dyes. In the present investigation a 53 full factorial design analysis experiment was employed to optimize the process paramete...

The genotoxic and carcinogenic effects of diazo dyes from industrial effluents pose a serious environmental threat by contaminating aquatic ecosystem and consequently impact human health. The potential of a diazo dye resistant, self-sustainable photosynthetic green alga Chlorella pyrenoidosa NCI...

Nowadays, growing world increasing demands of synthetic organic dyes which are widely used in food, leather and textile industries. This paper reports the simple rapid synthesis of Er doped ZnO nanoparticles by simple combustion method. Herein, different concentrations of Er (2.0 at. wt%, 2.5 at...

Removal of synthetic dyes is one of the main challenges before releasing the wastes discharged by textile industries. Biodegradation of azo dyes by alkaliphilic bacterial consortium is one of the environmental-friendly methods used for the removal of dyes from textile effluents. Hence, this stud...

A new, sensitive and efficient ultra fast liquid chromatography–tandem mass spectrometry (UFLC–MS/MS) method has been developed and validated for simultaneous quantification of cefazedone and etimicin in beagle dog plasma. After addition of the internal standard (IS) metronidazole, plasma samp...

Quantitative analysis of carboxylic acids in hydrophilic matrixes remains a challenge despite the introduction of derivatization reagents for carboxylic acids nearly three decades ago. Analysis of many bifunctional ester forming polymer cross-linkers are additionally complicated by the their amp...

Temperature-jump kinetic data of the nickel(II) chelation with diethylmalonic acid at 25°C and ionic strength 0.10M provide further support to the previous conclusions that chelate-ring opening is facilitated to some extent by an increase in the substituent steric hindrance of the coordinated d...

It has been found that γ-irradiation produces the CH3CH2Ċ(COOH)2 and (CH3CH2)2ĊCOOH radicals in this compound and γ-irradiation damage centers in (CH3CH2)2C(COOH)2 single crystal has been investigated by electron paramagnetic resonance (EPR) spectroscopy at room temperature. The crystals of di...

A novel series of 5,6-dichloro-2-methyl-1H-benzimidazole derivatives was synthesized and then screened for their urease inhibitory activity. All compounds showed more potent inhibitory activity in the range of IC50 = 0.0294 ± 0.0015–0.1494 ± 0.0041 µM than thiourea (IC50 = 0.5117 ± 0.0159 µ...

Lysine-specific demethylase 1 (LSD1), demethylase against mono- and di - methylated histone3 lysine 4, has emerged as a promising target in oncology. More specifically, it has been demonstrated as a key promoter in acute myeloid leukemia (AML), and several LSD1 inhibitors have already entered in...

A novel series of 3-((2-chloroquinolin-3-yl)methylene)indolin-2-ones were synthesized, using the ‘molecular hybridization approach’ and evaluated for anticancer efficacy. Eleven 3-((2-chloroquinolin-3-yl)methylene)indolin-2-ones (LM01 to LM11) were synthesized and evaluated for in vitro cytoto...

A rapid, convenient, and specific radioimmunoassay for 5β-cholestane-3α,7α, 12α,25-tetrol has been developed. Specific antiserum was obtained from rabbits immunized by the bile alcohol-bovine serum albumin conjugate, which was coupled by an (O-carboxymethyl)oxime bridge at the C-3 position. ...