Naphthalene (C10 H8) is a bicyclic aromatic hydrocarbon having 128 molecular weight [1]. Usually it is used as a deodorant in lavatories, moth repellent and as insecticides, mite powders and vermifuges [2]. In Bangladesh, a developing country, naphthalene is very popular and widely used moth repellent. People use it freely in household as it is very cheap and easily available. Naphthalene is ma...

The naphthalene dioxygenase enzyme system carries out the first step in the aerobic degradation of naphthalene by Pseudomonas sp. strain NCIB 9816-4. The crystal structure of naphthalene dioxygenase (B. Kauppi, K. Lee, E. Carredano, R. E. Parales, D. T. Gibson, H. Eklund, and S. Ramaswamy, Structure 6:571-586, 1998) indicates that aspartate 205 may provide the most direct route of electron tran...

Many cases of naphthalene and naphthalene poisoning are reported in literature since the introduction of naphthalene in 1841 by Rossbach as an internal antiseptic in typhoid fever and an anthelminthic in 1842. Today, naphthalene poisoning occurs in suicidal attenipts, or accidental ingestion by children. Naphthalene’s relative insolubility in water and its poor absorption from the gut underesti...

Naphthalene (CAS Registry Number: 91-20-3) is a natural constituent of coal tar, comprising approximately 11% of that material by weight (HSDB, 2003). It is present in gasoline and diesel fuels. All pesticide registrations of naphthalene, including use as a moth repellent, were cancelled in California in 1991 due to data gap inadequacies. However, naphthalene is included on a list of "inert" or...

Previously, we have described the selection of a plant-bacterium pair that is efficient in rhizoremediating naphthalene pollution in microcosm studies. After repeated selection for efficient root tip colonization upon inoculation of seeds of grass cv. Barmultra and for stable and efficient growth on naphthalene, Pseudomonas putida PCL1444 was selected as the most efficient colonizer of Barmultr...

A physiologically based pharmacokinetic (PBPK) model with five tissue groups (lung, liver, fat, richly perfused, and poorly perfused tissues plus venous and arterial blood compartments) has been developed from in vitro data and models of primary cell cultures for naphthalene toxicity in mice and rats. It extends a previous naphthalene PBPK model (Sweeney et al., 1996) and demonstrates a possibl...

Naphthalene feeding can result in cataract formation in rats and rabbits due to specific metabolites of naphthalene. The concomitant administration of the aldose reductase inhibitor Al1576 to naphthalene-fed rats was proven to prevent cataract formation. To determine whether this effect was directly linked to the ability of Al1576 to inhibit enzyme aldose reductase, a variety of structurally di...

Limiting factors in the fabrication of microcrystalline silicon solar cells and microcrystalline/amorphous ('micromorph') tandems F. Meillaud a; A. Feltrin a; D. Dominé a; P. Buehlmann a; M. Python a; G. Bugnon a; A. Billet a; G. Parascandolo a; J. Bailat b; S. Fay a; N. Wyrsch a; C. Ballif a; A. Shah a a Institute of Microtechnology (IMT), 2000 Neuchâtel, Switzerland b Oerlikon Solar-Lab S.A.,...

The title compound, C28H22N2O8, possesses crystallographically imposed twofold symmetry, with the two central carbon atoms of the naphthalene unit lying on the rotation axis. The two benzoyl groups in the mol-ecule are twisted away from the attached naphthalene unit with a C-C-C=O torsion angle of 49.05 (15)° between the naphthalene unit and the carbonyl group. The dihedral angle between the na...

Pseudomonas ATCC 17483 produced enzymes for naphthalene metabolism when growing in a medium containing succinate and naphthalene. Mutants for naphthalene metabolism produced by treatment with N-methyl-N'-nitro-N-nitrosoguanidine were able to produce these enzymes only when the metabolic pathway was intact as far as salicylaldehyde, which was therefore identified as the first possible inducer.