Organophosphate pesticides are of great interest for research because they are currently the most commonly used pesticides. In this study, a bacterial strain capable of completely degrading methyl parathion (MP) was isolated from agricultural soils in central Mexico. This strain was designated strain S5-2 and was identified as Burkholderia cenocepacia. To increase degradation yields, cells were...

Uptake, depuration, and metabolism ofp-nitroanisole (PNA) and p-nitrophenol (PNP) were investigated in Halim eda, Padina, and Porolithon species, all of which are calcareous marine algae found in tropical waters . The algae were exposed to filtered seawater solutions of either PNA or PNP in a static system for 24 hr (uptake period), then placed in clean water and allowed to release absorbed che...

Fe3O4 nanoparticles decorated on cellulose aerogel (CA) from banana stems (Fe3O4@CA) were synthesized for application in the Fenton degradation of p-nitrophenol (PNP). Cellulose extracted raw was with kymene as a crosslinking agent and freeze-dried method. The Fe3O4@CA samples characterized by X-ray diffraction (XRD), Energy-dispersive spectroscopy (EDS), Scanning Electron Microscope (SEM), Tra...

Western blot analyses of liver microsomes from 13 male and 12 female monkeys demonstrated that in each sample a variable amount of a cytochrome P450 (P450) protein, likely monkey P450 2E1, cross-reacted with anti-rat P450 2E1 antibodies. Therefore, the involvement of monkey 2E1 in the oxidation of typical substrates for 2E1 from other species, such as dimethylnitrosamine (DMN), p-nitrophenol (p...

Fe3O4 nanoparticles decorated on cellulose aerogel (CA) from banana stems (Fe3O4@CA) were synthesized for application in the Fenton degradation of p-nitrophenol (PNP). Cellulose extracted raw was with kymene as a crosslinking agent and freeze-dried method. The Fe3O4@CA samples characterized by X-ray diffraction (XRD), Energy-dispersive spectroscopy (EDS), Scanning Electron Microscope (SEM), Tra...

Plate- and octahedron-like Pt/Bi5Nb3O15 heterostructures are controllably prepared by a hydrothermal treatment method combined with photodeposition in the presence of different surfactants, i.e., cetyltrimethylammonium bromide (CTAB) and polyvinylpyrrolidone (PVP). The composition, structure, morphology, optical absorption properties, and textural properties of as-prepared Pt/Bi5Nb3O15 are well...

Chemical exposure to skin remains an important route by which systemic toxicity may occur. However, chemicals are seldom contacted singly in neat form and generally are present as a mixture. A total of 56 8-hr isolated perfused porcine skin flap (IPPSF) topical experiments were used to study the percutaneous absorption and cutaneous distribution of binary mixtures (solute/solvent) of 14C-labele...

Corrosion of iron by oxidation is a global problem that affects the economy and gives rise to environmental pollution. Iron rust oxide or hydroxide iron, it can be used as secondary source which will lead its management well reduce pressure on primary sources. In present study, waste was precursor for synthesis nanoparticles via green route using extract dried Jatropha leaf. Synthesized were ch...

The Agency for Toxic Substances and Disease Registry analyzed concurrently collected data on environmental methyl parathion (MP) and urinary p-nitrophenol (PNP) at the request of the U.S. Environmental Protection Agency (U.S. EPA). The purpose of the analysis was to assess whether individuals' age or level of residential MP contamination might predict their urinary PNP level. Unlicensed pestici...