Density functional theory has been employed to calculate the harmonic frequencies and intensities of a range of polycyclic aromatic hydrocarbon (PAH) cations that explore both size and electronic structure effects on the infrared spectroscopic properties of these species. The sample extends the size range of PAH species considered to more than 50 carbon atoms and includes several representative...

In the present study biodegradation of Polycyclic Aromatic Hydrocarbon (PAH) compound Naphthalene by four bacterial cultures Bacillus subtilis PD6, Bacillussp. PD9, Enterobactersp. PD11 and PD14 has been targeted. Biodegradation these selected was analysed HPLC (High Performance Liquid Chromatography) technique. analysis revealed naphthalene all within a span six days. Highest 78.1% shown PD6 w...

An experimental and numerical investigation of prevaporized n-heptane nitrogen-diluted nonpremixed flames is reported. The major objective is to provide well-resolved experimental data regarding the structure and emission characteristics of these flames, including profiles of major species (N2, O2, C7H16, CO2, CO, H2), hydrocarbon intermediates (CH4, C2H4, C2H2, C3Hx), and soot precursors (C6H6...

Conclusions: Our findings suggest that ethanol upregulates NQO1 expression by activating the AhR-Nrf2 pathway. Long-term exposure sustains low level of AhR protein and diminishes inducibility its target genes Nrf2 BaP. These will contribute to understanding synergistic toxicity polycyclic aromatic hydrocarbon compounds, such as