نتایج جستجو برای: polycyclic aromatichydrocarbons pahs
تعداد نتایج: 14029 فیلتر نتایج به سال:
Polycyclic aromatic hydrocarbons (PAHs) as a typical class of organic semiconductors demonstrate unique optical, electrical, magnetic and other interesting properties due to their extended conjugation diverse structures.
Reported herein is the detection of highly toxic polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) via proximity-induced non-covalent energy transfer. This energy transfer occurs in the cavity of γ-cyclodextrin, and is efficient even with the most toxic PAHs and least fluorescent PCBs. The low limits of detection and potential for selective detection using array-based...
Polycyclic aromatic hydrocarbon (PAH) molecules, ubiquitously seen in the interstellar medium (ISM) of our own and external galaxies, might have been incorporated into comets if they are formed from relatively unprocessed interstellar matter. The detection of PAHs in comets would be an important link between the ISM and comets. This review compiles our current knowledge on cometary PAHs, based ...
For over three decades from 1939, Polish-born Regina Schoental (1906-1995) studied, successively, at Oxford and Glasgow, syntheses and identification of polycyclic aromatic hydrocarbons (PAHs), metabolites of carcinogenic PAHs, and, at the Medical Research Council, Carshalton, Surrey, the carcinogenic action of pyrrolizidine (Senecio) alkaloids, and diazomethane and nitroso compounds. In partic...
Polycyclic aromatic hydrocarbons (PAHs) constitute a large class of organic compounds that are composed of two or more fused aromatic rings. They are primarily formed by incomplete combustion or pyrolysis of organic matter and during various industrial processes. PAHs generally occur in complex mixtures which may consist of hundreds of compounds. Humans are exposed to PAHs by various pathways. ...
Polycyclic aromatic hydrocarbons (PAHs) have been used as graphene’s model of electronic structure characterization [1]. Since the initial graphene experiments, it has been used in several areas, such as sensors manufactory, organic semiconductors, spintronic and non-liner optics and the study of its electronic structure is very important for these applications [2]. Therefore, the characterizat...
2.3.3. Carcinogenicity of N-Nitrosamines 1781 2.4. Quinolines 1781 2.5. Triazenes 1782 2.6. Polycyclic Aromatic Hydrocarbons 1783 2.6.1. QSARs for the Carcinogenicity of PAHs 1783 2.6.2. QSARs for the Genotoxicity of PAHs 1784 2.7. Halogenated Aliphatics 1784 2.8. Direct-Acting Compounds 1785 2.8.1. Mutagenicity of Platinum Amines 1785 2.8.2. Mutagenicity of Lactones 1785 2.8.3. Mutagenicity of...
Background: Polycyclic Aromatic Hydrocarbons (PAHs) are among hazardous chemicals that may endanger food safety. In Nigeria, hides and skins of animals are edible and used in dishes. So, this study investigated the levels of PAHs in singed and unsinged hides and skins of animals slaughtered at three districts abattoirs (Obosi, Uga, and Kwata) in Anambra State, Nigeria. Methods: Using gas chrom...
PAHs are a class of organic compounds, which are included in the wider family of polycyclic aromatic compounds (PACs). These compounds have shown carcinogenic and/or mutagenic activity in laboratory experiments with animals. PACs are generally formed during incomplete combustion or pyrolysis of organic matter occurring in a variety of natural processes or human activities. Consequently, PAHs ar...
Accepted: 29/12/2014 Abstract Polycyclic Aromatic Hydrocarbons (PAHs) are ubiquitous environmental contaminants and found almost everywhere. Most of PAHs are formed during the incomplete combustion of organic matter such as wood, petroleum product, coal and tar. These chemicals are biologically active and pose a risk for human health because of their potentially toxicity such as carcinogenicity...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید