Two solid-phase adsorbents (phase I and phase II) were synthesized successfully that o-Anisic acid derivatives were evenly functionalized on the surface of activated carbon. It was certified that the two adsorbents were applied to preconcentrate and separate trace levels of Pb(II) and Fe(III) fr...

Various formulations of anise-based bioadhesive gels are prepared. Freeze-drying method was successfully employed and superporous scaffolds were obtained. The resulting porous microarchitectures are strongly influenced by the composition of hydrogel formulations and temperature of freezing. Anis...

Many pharmaceutically relevant molecules are still extracted directly from lignocellulosic biomass sources. As this can be a bottleneck in supply, total quantification followed by total extraction are desirable processes to ensure as much as possible is obtained, at the optimal time in the growt...

Phospholipase A2 catalyses the hydrolysis of the ester bond of 3-sn-phosphoglycerides. Here, we report the crystal structures of the free and anisic acid-bound triple mutant (K53,56,120M) of bovine pancreatic phospholipase A2. In the bound triple mutant structure, the small organic molecule p-an...

The aim of this work was to study the transmission of p-anisic acid through two different membranes, viz., commercially available nanofiltration membrane (NF-300) and a goat membrane. The p-anisic acid is a crystalline organic compound having vital applications in medical science for the treatme...

The mechanism of the compression-induced decomposition of aryl diazonium chlorides is proposed on the basis of quantum-chemical calculations of both the isolated cations and crystalline materials. The electron transfer from the anion to the cation, followed by the crystal decomposition, is obser...

The strain Pseudomonas putida ZWL73, which metabolizes 4-chloronitrobenzene (4CNB) by a partial-reductive pathway, was inoculated into lab-scale 4CNB-contaminated soil for bioaugmentation purposes in this study. The degradation of 4CNB was clearly stimulated, as indicated with the gradual accumu...

Two bacterial strains were isolated from activated sludge by using 4-chloronitrobenzene (4-CB) as the sole source of carbon for enrichment. One of the isolates was identified as Sphingomonas sp. strain CNB3 and the other as Burkholderia sp. strain CAN6, mainly through morphological and physiolog...

Hydrotreatment of 4-chloronitrobenzene in aqueous phase has been carried out under ambient-like operating conditions (25 °C and 1 atm) with H2 using an own-prepared catalyst based on Pd (1 wt%) supported on Al-pillared clay. Nitrobenzene, 4-chloroaniline, aniline and cyclohexanone were identifi...

The TiO2/UV/O3 process has been employed to remove 4-chloronitrobenzene (4-CNB) and compared to UV/air, O3, TiO2/O3, TiO2/UV/O2 and UV/O3 five parallel oxidation pathways. The reaction activities of these six processes were tested in aqueous using electron paramagnetic resonance (EPR) spin trapp...

TiO2 hollow microspheres were synthesized by a simple hydrothermal method followed by calcination at different temperatures ranging from 400 to 800 °C. The prepared samples were characterized by XRD, SEM, TEM, SAED, HRTEM, N2 adsorption, and UV–vis spectroscopy. The photocatalytic activities o...

Recent studies have demonstrated that the rate at which Fe(II)-Fe(III) oxyhydroxide systems catalyze the reduction of reducible contaminants, such as 4-chloronitrobenzene, is well correlated to their thermodynamic reduction potential. Here we confirm this effect in the presence of Fe(III) oxyhyd...

In this study, the enhancement on 4-chloronitrobenzene (4-CNB) reduction was investigated in a dual-bioelectrochemical system with the cathode seeded by enriched 4-CNB degradation inoculums. We demonstrated that the biocathode had the ability to promote 4-CNB reduction and avoid more reluctant b...

In this study, Fe2+-modified goethite with low defects (α-Fe(Fe2+)OOH) was synthesized and characterized. Results revealed that α-Fe(Fe2+)OOH is a nano magnetic material with goethite (α-FeOOH) -type structures and has fewer Lewis acid of Fe3+ on its surface. Moreover, α-Fe(Fe2+)OOH was effe...

This paper introduces a novel approach to enhance the strains’ biodegradation of 4-chloronitrobenzene by utilizing the synergistic effect of the organic reductant mannitol and the substrate beef extraction. Our results demonstrate that 4-chloronitrobenzene could not be an available nitrogen sou...

The oxidation of polyunsaturated fatty acids to the corresponding hydroperoxide by plant and animal lipoxygenases is an important step for the generation of bioactive lipid mediators. Thereby fatty acid hydroperoxide represent a common intermediate, also in human innate immune cells, like neutro...

One-pot reaction of alkylidene Meldrum's acid with alkyl isocyanides in the presence of 4-(2-phenyldiazenyl)benzenamine derivative leads to the corresponding azo 2,5-dioxo-3-pyrrolidine carboxamide in good yields.

Male Sprague-Dawley rats were treated with 4-aminoazobenzene derivatives or other drug metabolizing enzyme inducers such as phenobarbital, 3-methylcholanthrene and isosafrole. The expression of hepatic microsomal cytochrome P-450 of the rats, principally that of a high spin form of cytochrome P-...

The oxidative polymerisation of p-aminoazobenzene (PAAB) on glassy carbon in acetonitrile was studied by cyclic voltammetry, the potential step method, and SEM and FT-IR spectroscopy. The presence of a base-like pyridine was found to be essential for the polymerization process. The prepared poly...

Surface-enhanced Raman scattering (SERS) spectra and cyclic voltammetry were used to detect the products of the oxidation and reduction of p-aminoazobenzene (PAAB) on roughened gold and silver electrodes in acidic and neutral solutions.The results indicated that oligomerization products are form...