Biodegradation of polycyclic aromatic hydrocarbons (PAHs) in crude oil, by a white rot fungus, Pleurotus ostreatus sp., in broth culture was investigated. It was found that the biomass of the organism increased with the increase of PAHs concentration in the cultures. In the cultures with 25.99, 49.01 and 80.05 mg.kg-1 PAHs, the degradation increased with the PAHs of low molecular weight concent...

Prostate cancer risk factors are mainly associated to an increase of oxidative stress (OS) related with ageing, genetics, recurrent inflammation, life style or carcinogens exposure as polycyclic aromatic hydrocarbons (PAHs). These last one are ubiquitous environmental contaminants resultant from the incomplete combustion of carbon-containing fuels such as tobacco, wood, diesel, or charbroiled [...

The level and source of 16 polycyclic aromatic hydrocarbons (PAHs) were investigated in the surface sediments from the Gorgan Bay, Caspian Sea. The sum of 16 PAHs (ΣPAH16) concentrations varied from 107.87 to 516.18 ng g(-1)dry weight, with average value of 270.96 ± 150.47 ng g(-1)dry weight. Ecological risk assessment of PAHs, indicated that adverse biological effects caused by acenaphthene, n...

The detection of a new 16.4 μm emission feature in the ISO-SWS spectra of NGC 7023, M17, and the Orion Bar is reported. Previous laboratory experiments measured a mode near this wavelength in spectra of PAHs (Polycyclic Aromatic Hydrocarbons), and so we suggest the new interstellar 16.4 μm feature could be assigned to low-frequency vibrations of PAHs. The best carrier candidates seem to be PAH ...

A synthetic approach towards boron-nitrogen substituted polycyclic aromatic hydrocarbons (BN-PAHs) via electrophilic cyclization is described and it shown that the variation of rings' connectivity may tune emission wavelengths effectively.

Polycyclic aromatic hydrocarbons (PAHs) are natural and anthropogenic aromatic hydrocarbons with two or more fused benzene rings. Because of their ubiquitous occurrence, recalcitrance, bioaccumulation potential and carcinogenic activity, PAHs are a significant environmental concern. Ligninolytic fungi, such as Phanerochaete chrysosporium, Bjerkandera adusta, and Pleurotus ostreatus, have the ca...

Polycyclic aromatic hydrocarbons (PAHs) have been used as graphene’s model of electronic structure characterization [1]. Since the initial graphene experiments, it has been used in several areas, such as sensors manufactory, organic semiconductors, spintronic and non-liner optics and the study of its electronic structure is very important for these applications [2]. Therefore, the characterizat...

2.3.3. Carcinogenicity of N-Nitrosamines 1781 2.4. Quinolines 1781 2.5. Triazenes 1782 2.6. Polycyclic Aromatic Hydrocarbons 1783 2.6.1. QSARs for the Carcinogenicity of PAHs 1783 2.6.2. QSARs for the Genotoxicity of PAHs 1784 2.7. Halogenated Aliphatics 1784 2.8. Direct-Acting Compounds 1785 2.8.1. Mutagenicity of Platinum Amines 1785 2.8.2. Mutagenicity of Lactones 1785 2.8.3. Mutagenicity of...

To confirm the method for preparing artificially spiked soil with polycyclic aromatic hydrocarbons (PAHs), we tested the homogeneity of PAHs in spiked soils, which were prepared by three different procedures, by using kaolin and ando soil. When the slurry of kaolin and acetone containing PAHs were evaporated by a rotary evaporator at 30 - 35 degrees C, the most homogeneous distribution of PAHs ...

Reported herein is the detection of highly toxic polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) via proximity-induced non-covalent energy transfer. This energy transfer occurs in the cavity of γ-cyclodextrin, and is efficient even with the most toxic PAHs and least fluorescent PCBs. The low limits of detection and potential for selective detection using array-based...