The dynamic adsorption of cetyl trimethyl ammonium bromide (CTAB) was investigated at decane/water interface by pendant drop technique. The images were analysed using Axisymmetric Drop Shape Analysis software and then were modelled using a new model. The model provided a unique solution for equi...
The thermal denaturation of adenosine deaminase has been investigated in the presence and absence of dodecyl trimethyl ammonium bromide (DTAB) over the temperature range (305-355 K) in 2.5 mM phosphate buffer, pH 6.4 by temperature scanning spectroscopy. The presence of DTAB caused the destabili...
The denaturation behaviour of calmodulin (CaM) in sodium n-dodecyl sulphate (SDS), dodecyl trimethyl ammonium bromide (DTAB), guanidine hydrochloride (GuHCl) and urea was studied by fluorescence spectrophotometry at 25 and 37°C in Tris-HCl buffer, pH 7.4.The sigmoidal denaturation curve was plo...
The most serious drawback of aluminium-air batteries with aqueous alkaline electrolytes is parasitical hydrogen evolution reaction. It is essential to identify an effective electrolyte additive for suppressing the self-corrosion of the aluminium anode. This work reports the inhibition effects of...
The phase behavior and solubilization of isopropyl myristate in microemulsions containing CTAB-SDS/IPM/butan-1-ol/aqueous NaCl (w = 0.05) with different XSDS values (the molar fraction of SDS in CTAB and SDS mixture) were studied using the ε − β diagram method. The microemulsion systems contai...
The application of pressure filtration in microalgae harvesting requires chemical pretreatment in order to reduce membrane fouling and to increase water flux. Surfactants have shown potential to enhance microalgae dewaterability by charge neutralization, bridging and releasing extracellular poly...
The novel 6,8-di-tert-butyl-3-(p-hydroxyphenyl)coumarin (1) and its phthalonitrile derivatives named 4-[6,8-di-tert-butyl-3-(p-oxyphenyl)coumarin]phthalonitrile (2), 3-[6,8-di-tert-butyl-3-(p-oxyphenyl)coumarin]phthalonitrile (3), 4,5-bis[6,8-di-tert-butyl-3-(p-oxyphenyl)coumarin]phthalonitrile ...
The tribological behaviour of zinc di-n-butyl dithiophosphate in steel-on-bronze contacts has been studied in a three-pin-on-disc wear machine under closely controlled conditions, whilst parameters such as load, sliding speed, additive concentration and roughness of the steel disc were varied sy...
Di-n-butyl phthalate (DBP), belonging to the family of phthalic acid esters, is usually used as the plasticizer. Extensive and massive plastic commodities use has made DBP the most identified chemical in environment. DBP is also suspected as a mutagen and an endocrine-disrupting chemical. Thus, ...
Di(n-butyl) phthalate (DBP) is a plasticizer used in the manufacture of several industrial and household articles. They get easily released to the environment and may cause adverse effects to living organisms. Effects of DBP and its metabolite monobutyl phthalate (MBP) on superoxide dismutase (S...
The current study was conducted to test the possible ameliorative role of selenium nanoparticles (Se-NPs) against oxidative damage of Leyding cells induced by di-n-butyl phthalate (DBP) in pre-pubertal male rat offspring. Forty-two pregnant female rats treated from gestation day (GD) 12 to postn...
Di-n-butyl phthalate (DBP) widely spread industrial chemical that made drastic alteration in male reproductive system. The present study elucidates the protective role of testosterone on reproductive toxicity in prenatal DBP exposed adult male rats. Pregnant rats were injected with corn oil or 1...
Anorectal malformations in combination with hypospadias (ARMs & hypospadias) are a type of complex congenital malformations. The underlying mechanisms of this deformity are largely unknown. In this study, we comprehensively characterized the dysplasia, histological malformations, and genetic cha...
Enhanced ozonation degradation of di-n-butyl phthalate (DBP) by zero-valent zinc (ZVZ) has been investigated using a semi-continuous reactor in aqueous solution. The results indicated that the combination of ozone (O3) and ZVZ showed an obvious synergetic effect, i.e. an improvement of 54.8% on ...
Sucrose etherification with the 1,2-epoxydodecane was investigated using various tertiary amines as catalysts. The reversible addition of the tertiary amine on the epoxide led to the formation of a strongly basic quaternary ammonium salt, responsible for the catalytic activity observed. From tho...
The acid-catalysed ketalisation between ethyl levulinate and two different alkyl 1,2-diols (ethylene glycol and 1,2-dodecanediol) was investigated using different acid catalysts, e.g. p-toluensolfonic acid, Amberlyst 70, zeolite H-ZSM-5, and niobium phosphate. Good activity and recyclability wer...
A series of even numbered fatty acid esters (C2-C18) of p-[N,N-bis(2-chloroethyl)amino]phenol were synthesized and evaluated as to acute toxicity as well as effectiveness against L-1210 mouse leukemia. The acetate through the decanoate derivatives demonstrated toxicity between 2 and 3 times that...
Chlorocatechol 1,2-dioxygenase (1,2-CCD) is a non-heme iron protein involved in the intradiol cleavage of aromatic compounds that are recalcitrant to biodegradation. In particular, 1,2-CCD catalyzes the conversion of catechol and its halogenated derivatives to cis–cis muconic acid. In this stud...
The mutants used in this study, Sphingobacterium sp. M4113/M4115, were originated from a wild-type strain GCG, which was isolated from the sewage of a styrene monomer-manufacturing factory. The culturing medium contains appropriate amounts of K2HPO4, (NH4)2SO4, MgSO4·7H2O, Na-succinate, yeast e...
Lignin is nature's second most abundant polymer and displays a largely unexploited renewable resource for value-added bio-production. None of the lignin-based fermentation processes so far managed to use guaiacol (2-methoxy phenol), the predominant aromatic monomer in depolymerized lignin. ...
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