Naphthalene is a simplest Polycyclic Aromatic Hydrocarbon (PAH). PAHs are major contaminants of environment, associated with common anthropogenic activities such as oil refineries and incomplete combustion of fossil fuels. PAHs are toxic, mutagenic and carcinogenic. Isolation of naphthalene degrading bacteria is recommended using a complex ONR 7a medium. Present work includes a modified medium ...

Oxidative stress with subsequent production of reactive oxygen species has been postulated as one of the mechanisms of naphthalene toxicity. In the present study, the effect of oral administration of the natural antioxidant and free radical scavenger, proanthocyanidins present in grape seeds (GSP, 10 or 50 mg kg, p.o.), has been investigated in rats following the concomitant administration of n...

A thermophilic naphthalene- and aliphatic hydrocarbon-degrading bacterium SH-1 was isolated from a deep oil well and identified as Geobacillus sp. n-alkanes from C12 to C33 in crude oil and naphthalene were effectively degraded by strain SH-1, and this strain could readily utilize these compounds as its sole carbon and energy resources. During the degradation of naphthalene, strain SH-1 initiat...

In the title compound, C(19)H(14)ClNO(5), the aroyl group is attached to the naphthalene ring system with a non-coplanar configuration. The dihedral angle between naphthalene ring system and benzene ring is 70.62 (6)°. The nitro group is oriented in parallel with the adjacent carbonyl plane. The torsion angle of the carbonyl group and naphthalene ring is 54.68 (19)° (C-C-C-O), and that of nitro...

The bronchiolar injury/repair response to naphthalene (NA) in mice includes acute distal airway epithelial injury that is followed by epithelial proliferation and redifferentiation, which result in repair of the epithelium within 14 days. To test whether prior exposure to aged and diluted sidestream cigarette smoke (TS) would alter the injury/repair response of the airway epithelium, adult mice...

We previously reported on the denitrifier Pseudomonas stutzeri strain NAP-3 that degrades naphthalene without oxygen. In our present studies, naphthalene biodegradation by NAP-3 was slow or nearly absent when acetate was not present, suggesting a stimulating effect by the non-fermentable substrate. NAP-3 was sensitive to the amount of naphthalene in the culture; with naphthalene removal and nit...

The constant energy consumption and world-wide demography expansion add to the potential risks of ecological and human disaster associated with global warming. This makes it a necessity to develop renewable energy technologies such as photovoltaic energy. These technologies already exist, but their cost has to be reduced in order to compete with wellestablished energies based on natural resourc...

Naphthalene, a widely used industrial and household chemical, has rarely been an agent of poisoning worldwide. Severe haemolysis from naphthalene poisoning is rare and can be a challenge to clinicians. We report a 22-year-old female, who accidentally ingested naphthalene mixed coconut oil and got admitted with recurrent vomiting, headache and passage of dark urine. Severe intravascular haemolys...

The ability of the rabbit to metabolize naphthalene and chlorinated naphthalene was markedly influenced by the degree of halogenation of the compound according to Cornish and Block (2). Naphthalene is related structurally to biphenyl, in which a coaxial linkage connecta two phenyl molecules. Whethe? the presence of a chlorine atom in biphenyl also alters the metabolism of this compound as it, d...

The research was focused on the slurry-phase biodegradation of naphthalene in soil. Among ex-situ techniques, the slurry-phase technique offers the advantage to increase the availability of contaminants to bacteria. From soil samples collected on a contaminated site, the Pseudomonas putida M8 strain capable to degrade naphthalene was selected. Experiments were performed in a stirred and oxygena...