In the title phenanthrenone compound, C(18)H(13)NO(2)S, the dihydro-phenanthrene ring system is not planar, with its central ring distorted to a screw-boat conformation. The essentially planar thia-zole ring [maximum deviation = 0.005 (1) Å] is inclined at an inter-planar angle of 23.36 (5)° with respect to the mean plane through the dihydro-phenanthrene ring system. In the crystal packing, int...

Confocal laser scanning microscopy was used to monitor the colonization pattern of the gfplabeled derivative strain of Pseudomonas putida ATCC 17514 on fluorene and phenanthrene crystals. The in situ experiments showed that P. putida tends to grow directly on phenanthrene, forming a biofilm on accessible crystalline surfaces. On the other hand, no significant biofilm formation was observed in t...

novel analogues of n-piperazinyl fluoroquinolones were prepared and evaluated against a panel of gram-positive and gram-negative bacteria, to study the effect of introducing bulky anthracene and phenanthrene moieties on the antibacterial effects of norfloxacin, ciprofloxacin and gatifloxacin. although most of the novel synthesized compounds had lower antibacterial effects, some derivatives show...

Cationic arene ruthenium metalla-prisms of the general formula [Ru6(p-cymene)6(3-tpt)2-(OO∩OO)3] (3-tpt = 2,4,6tris(3-pyridyl)-1,3,5-triazine; OO∩OO = 5,8-dioxido-1,4-naphthoqui-nonato [1]6þ or 6,11-dioxido-5,12naphthacenedionato [2]6þ) have been obtained from the corresponding dinuclear arene ruthenium complexes [Ru2(pcymene)2(OO∩OO)Cl2] by reaction with 3-tpt, silver trifluoromethanesulfonate...

Novel analogues of N-piperazinyl fluoroquinolones were prepared and evaluated against a panel of Gram-positive and Gram-negative bacteria, to study the effect of introducing bulky anthracene and phenanthrene moieties on the antibacterial effects of norfloxacin, ciprofloxacin and gatifloxacin. Although most of the novel synthesized compounds had lower antibacterial effects, some derivatives show...

This paper investigates the operational factors that affect an integrated electrochemical remediation (IECR) process for the degradation and removal of both organic and heavy metal contaminants in low permeability soils. IECR aims to degrade the organic contaminants through chemical oxidation process and at the same time remove the heavy metals through electromigration. Hydrogen peroxide is use...

Fish embryos exposed to complex mixtures of polycyclic aromatic hydrocarbons (PAHs) from petrogenic sources show a characteristic suite of abnormalities, including cardiac dysfunction, edema, spinal curvature, and reduction in the size of the jaw and other craniofacial structures. To elucidate the toxic mechanisms underlying these different defects, we exposed zebrafish (Danio rerio) embryos to...

Solution chemistry effects on surfactant micelle formation, surfactant sorption on kaolinite, and phenanthrene partitioning to surfactant micelles and sorbed surfactants were studied. For the anionic surfactant sodium dodecyl sulfate (SDS), critical micelle concentration (cmc) values decreased with increasing ionic strength but were unaffected by pH changes. For the nonionic surfactant Tween 80...

Microorganisms responsible for the degradation of phenanthrene in a clean forest soil sample were identified by DNA-based stable isotope probing (SIP). The soil was artificially amended with either 12C- or 13C-labeled phenanthrene, and soil DNA was extracted on days 3, 6 and 9. Terminal restriction fragment length polymorphism (TRFLP) results revealed that the fragments of 219- and 241-bp in Ha...

The bacterium Delftia sp. Cs1-4 produces novel extracellular structures (nanopods) in conjunction with its growth on phenanthrene. While a full genome sequence is available for strain Cs1-4, genetic tools that could be applied to study phenanthrene degradation/nanopod production have not been reported. Thus, the objectives of this study were to establish such tools, and apply them for molecular...