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73338

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Emilia M Reyes-Gallardo et al.
Journal of chromatography. A, 1345, 43-49 (2014-05-03)
In this article, the easy synthesis of magnetic nanoparticles-nylon 6 composite is presented, characterized and applied in the microextraction field. The one-step synthesis of the composite is performed by a solvent changeover playing with the different solubility of the polymeric
Zijiao Yuan et al.
Archives of environmental contamination and toxicology, 68(2), 330-341 (2014-10-09)
A total of 46 surface soil samples collected from the experimental area, buffer area, and core area of the Yellow River Delta Natural Reserve (YRDNR), China, and an adjacent area outside the reserve were analyzed for 23 PAHs including highly
Meng Zhang et al.
Environmental pollution (Barking, Essex : 1987), 195, 84-90 (2014-09-10)
Biochars from nitrogen-rich biomaterials (i.e., α-amylase, chitin and zein) were produced at different temperatures (i.e. 170, 250, 350 and 450 °C) and characterized, and their sorption for phenanthrene, naphthalene and 1-naphthol was investigated. The organic carbon content normalized-sorption coefficient (Koc) of
M Crampon et al.
Environmental science and pollution research international, 21(13), 8133-8145 (2014-03-29)
The natural biodegradation of seven polycyclic aromatic hydrocarbons (PAHs) by native microorganisms was studied in five soils from Normandy (France) from diffusely polluted areas, which can also pose a problem in terms of surfaces and amounts of contaminated soils. Bioavailability
Onur Guven Apul et al.
Water research, 47(4), 1648-1654 (2013-01-15)
Adsorption of two synthetic organic compounds (SOCs; phenanthrene and biphenyl) by two pristine graphene nanosheets (GNS) and one graphene oxide (GO) was examined and compared with those of a coal base activated carbon (HD4000), a single-walled carbon nanotube (SWCNT), and
Marino Marinković et al.
Environmental science & technology, 46(22), 12679-12686 (2012-11-07)
Cellular stress responses are frequently presumed to be more sensitive than traditional ecotoxicological life cycle end points such as survival and growth. Yet, the focus to reduce test duration and to generate more sensitive end points has caused transcriptomics studies
Doreen Babin et al.
FEMS microbiology ecology, 86(1), 3-14 (2013-01-23)
Microbial communities in soil reside in a highly heterogeneous habitat where diverse mineral surfaces, complex organic matter and microorganisms interact with each other. This study aimed to elucidate the long-term effect of the soil mineral composition and charcoal on the
Determination of phenanthrene and hydroxyphenanthrenes in various biological matrices at trace levels using gas chromatography-mass spectrometry.
Grova N, et al.
Journal of Analytical Toxicology, 29(3), 175-181 (2005)
Zhantao Han et al.
Water research, 70, 394-403 (2015-01-03)
This paper discusses the sorbent properties of magnetic activated carbons and biochars produced by wet impregnation with iron oxides. The sorbents had magnetic susceptibilities consistent with theoretical predictions for carbon-magnetite composites. The high BET surface areas of the activated carbons
Jelena M Spasojević et al.
Journal of hazardous materials, 283, 60-69 (2014-09-28)
This work compares the biodegradation potential of four polycyclic aromatic hydrocarbons (PAH) (phenanthrene, pyrene, chrysene and benzo(a)pyrene, chosen as representatives of the 3, 4 and 5 ring PAHs) with their desorption from sediment by XAD4 resin and methyl-β-cyclodextrin (MCD). The
Tristan J Stringer et al.
Ecotoxicology and environmental safety, 99, 82-91 (2013-11-02)
Reliable environmentally realistic bioassay methodologies are increasingly needed to assess the effects of environmental pollution. This study describes two estuarine sediment bioassays, one acute (96 h) and one chronic (14 d), with the New Zealand harpacticoid copepod Quinquelaophonte sp. utilising
Vincent Tognetti et al.
Physical chemistry chemical physics : PCCP, 15(34), 14465-14475 (2013-07-31)
In this paper, we introduce new local descriptors in the framework of Conceptual Density Functional Theory. They can be considered as an extension of the dual descriptor [Morell et al., J. Phys. Chem. A, 2005, 109, 205]. These indices are
Ifeyinwa S Obuekwe et al.
Environmental pollution (Barking, Essex : 1987), 180, 180-189 (2013-06-19)
This investigation considered the effects of Zn, Cu, Al and Fe (50 and 500 mg kg(-1)) on the loss, sequential extractability, using calcium chloride (CaCl2), hydroxypropyl-β-cyclodextrin (HPCD) and dichloromethane (DCM) and biodegradation of (14)C-phenanthrene in soil over 63 d contact time. The key
Fei Dong et al.
Wei sheng wu xue bao = Acta microbiologica Sinica, 52(8), 985-993 (2012-11-24)
To identify the relationship between salicylate 5-hydroxylase activity and the degradation rate of phenanthrene by moderately halophilic Martelella sp. AD-3, and to investigate their enzymatic characteristics. The products resulted from degradation of salicylic acid using the crude enzyme produced by
Dan Zhang et al.
Sheng wu gong cheng xue bao = Chinese journal of biotechnology, 26(6), 726-734 (2010-09-08)
Polycyclic aromatic hydrocarbons (PAHs) are toxic pollutants that exist extensively in the environment. Microbial degradation is the main pathway of PAHs eradication in natural environment and therefore is of importance to investigate. Advancement has been made in recent years regarding
Dainan Zhang et al.
Chemosphere, 93(1), 61-68 (2013-05-30)
The biosorption isotherms for phenanthrene (Phen) by cultured algae, field-collected plankton, and market algae samples (OSs) and their fractions (lipid-LP, lipid free carbon-LF, alkaline nonhydrolyzable carbon-ANHC, and acid nonhydrolyzable carbon-NHC) were established. All the biosorption isotherms are well fitted by
Jing Lu et al.
World journal of microbiology & biotechnology, 29(9), 1685-1694 (2013-03-27)
A fusant strain F14 with high biodegradation capability of phenanthrene was obtained by protoplast fusion between Sphingomonas sp. GY2B (GenBank DQ139343) and Pseudomonas sp. GP3A (GenBank EU233280). F14 was screened and identified from 39 random fusants by antibiotic tests, scanning
Xinghui Xia et al.
Environmental toxicology and chemistry, 32(4), 894-901 (2013-01-22)
Carbon nanotubes have attracted attention around the world because of their high sorption capacity for hydrophobic organic compounds (HOCs); however, the bioavailability of HOCs sorbed on carbon nanotubes to bacteria is not well known. In the present study, (14) C-labeled
Martin Holmstrup et al.
Environmental pollution (Barking, Essex : 1987), 184, 370-376 (2013-10-08)
Interaction between effects of hazardous chemicals in the environment and adverse climatic conditions is a problem that receives increased attention in the light of climate change. We studied interactive effects of phenanthrene and drought using a test system in which
Yi Li et al.
Journal of chromatography. A, 1358, 60-67 (2014-07-20)
A novel TiO2-nanosheets coated fiber for solid-phase microextraction (SPME) was fabricated by anodization of Ti wire substrates in ethylene glycol with concentrated NH4F. The in situ fabricated TiO2-nanosheets were densely embedded into Ti substrates with about 1μm long, 300nm wide
Long-Kai Shi et al.
Analytical and bioanalytical chemistry, 407(13), 3605-3616 (2015-03-03)
A method for rapid analysis of 16 polycyclic aromatic hydrocarbons (PAHs) in edible oils has been developed on the basis of a simplified solvent extraction and liquid chromatography-atmospheric pressure photoionization tandem mass spectrometry performed in multiple reaction monitoring mode. The
Ilya Lerman et al.
Environmental pollution (Barking, Essex : 1987), 182, 169-176 (2013-08-07)
Carbon nanotubes, organic contaminants and dissolved organic matter (DOM) are co-introduced into the environment. Thus, the interactions between these components have to be evaluated to better understand their environmental behavior. In this study, single-walled carbon nanotubes (SWCNTs) were used as
Angelo Morgado Ribeiro et al.
Marine pollution bulletin, 64(12), 2834-2838 (2012-10-23)
Polycyclic aromatic hydrocarbons (PAHs) were determined in water samples collected in two streams and a lake located at Niteroi City, Rio de Janeiro State, Brazil between October 2008 and September 2009. Samples were extracted using liquid-liquid extraction and analyzed using
Dongmei Zhang et al.
Environmental pollution (Barking, Essex : 1987), 184, 123-130 (2013-09-21)
We observed that the sorption kinetics of nitrobenzene and 2,4-dinitrotoluene (two model polar compounds) was significantly slower than that of 1,4-dichlorobenzene and phenanthrene (two model apolar compounds). The difference was attributable to the strong non-hydrophobic interactions between the polar molecules
Khajamohiddin Syed et al.
Protein engineering, design & selection : PEDS, 26(9), 553-557 (2013-08-02)
A promising polycyclic aromatic hydrocarbon-oxidizing P450 CYP5136A3 from Phanerochaete chrysosporium was rationally engineered to enhance its catalytic activity. The residues W129 and L324 found to be critical in substrate recognition were transformed by single (L324F) and double (W129L/L324G, W129L/L324F, W129A/L324G
Yue Sun et al.
Environmental toxicology and chemistry, 33(10), 2363-2367 (2014-07-22)
Alkylated polycyclic aromatic hydrocarbons (APAHs) are abundant in petroleum, but data regarding their toxicological properties are limited. A survey of all monomethylated phenanthrene structures revealed that they were 2 times to 5 times more potent than phenanthrene for activation of
Fuxing Kang et al.
PloS one, 8(3), e58238-e58238 (2013-03-14)
The effects of interactions between genetic materials and polycyclic aromatic hydrocarbons (PAHs) on gene expression in the extracellular environment remain to be elucidated and little information is currently available on the effect of ionic strength on the transformation of plasmid
Wei-Wei Zhao et al.
Journal of chromatography. A, 1370, 121-128 (2014-12-03)
Metal-organic frameworks (MOFs) have great potential for applications in chromatography due to their highly tailorable porous structures and unique properties. In this work, the stable MOF UiO-66 was evaluated as both a normal-phase (NP-) and a reverse-phase (RP-) stationary phase
Bin Wang et al.
Environmental science & technology, 49(1), 588-596 (2014-12-10)
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental pollutants, and have been reported to be a risk factor for human neural tube defects (NTDs). We investigated the relationship between PAH concentrations in maternal serum and NTD risk in offspring using a
Jian-Lin Sun et al.
Ecotoxicology and environmental safety, 113, 31-37 (2014-12-09)
Halogenated polycyclic aromatic hydrocarbons (HPAHs) have been reported to occur widely in urban air. Nevertheless, knowledge about the human health risk associated with inhalation exposure to HPAHs is scarce so far. In the present study, nine HPAHs and 16 PAHs
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