Several naphthalene and anthracene degrading bacteria were isolated from rhizosphere of Populus deltoides, which were growing in non-contaminated soil. Among these, four isolates, i.e. Kurthia sp., Micrococcus varians, Deinococcus radiodurans and Bacillus circulans utilized chrysene, benzene, toluene and xylene, in addition to anthracene and naphthalene. Kurthia sp and B. circulans showed posit...

A method capable of determining 13 PAHs (acenaphthene, anthracene, benzo[a]anthracene, benzo[a]pyrene, benzo[b]fluoranthene, benzo[k]fluoranthene, chrysene, dibenzo[ah]anthracene, fluoranthene, fluorene, indene[1,2,3-cd]pyrene, phenanthrene and pyrene) in a mixture of 16 EPA PAHs by second derivative synchronous spectrofluorometry in the constant wavelength mode was developed. It has not been p...

DNA-like fluorescent oligomers composed of alkynyl beta-D-ribofuranosides bearing pyrene, perylene, and anthracene as a fluorophore were synthesized by solid-phase DNA synthesis. The fluorescent oligomers possess the defined number and order of the fluorophores. In these oligomers, the adjacent fluorophores efficiently interact with each other by hydrophobic interactions in their electronic gro...

Nanocoils and straight nanoribbons have been controllably fabricated through the interfacial organization of an anthracene derivative. A morphology-dependent photoswitching has been observed. While the nanocoils show no photocurrent response, the straight nanoribbons display a switchable photocurrent upon an on/off illumination.

INTRODUCTION Dibenzo(a,h)anthnacene and the three metabolically pos sible trans-dihydrodiols of dibenzo(a,h)anthracene were tested for tumorigenic activity on mouse skin and in new born mice. in the tumorigenicity study on mouse skin, a single topical application of 10 to 160 nmol of compound was followed 7 days later by twice-weekly applications of the tumor promoter 12-O-tetradecanoylphorbol-...

In the title mol-ecule, C(23)H(15)BrO, the prop-2-en-1-one unit is planar and it makes dihedral angles of 20.9 (1) and 45.8 (1)°, respectively, with the 4-bromo-phenyl ring and the anthracene ring system. The interplanar angle between the 4-bromophenyl ring and the anthracene ring system is 35.52 (7)°. In the crystal structure, mol-ecules are linked into dimers by C-H⋯Br hydrogen bonds, and the...

The effects of the chemical carcinogen 7,12-dimethylbenz(a)anthracene on long-wavelength ionizing radiation (grenz ray)-induced carcinogenesis in the skin of hairless mice were examined. A carcinogenic amount of the grenz energy (20,500 R) was applied over a 12-month period. A single application of 7,12-dimethylbenz(a)anthracene 4 weeks before the initiation of the grenz ray exposures resulted ...

A manganese(III)-mediated reaction between 2-benzoyl-1,4-benzoquinones and 1,3-dicarbonyl compounds that produces benzo[c]furan-4,7-diones and anthracene-1,4-diones with high chemoselectivity is described. With ethyl butyrylacetate, by changing the solvent, benzo[c]furan-4,7-diones and anthracene-1,4-diones can be generated in high chemoselectivities. With ethyl benzoylacetate, N ,N-dimethyl ac...