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Showing 25 to 36 of 9169 entries
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Thiophene-Fused π-Systems from Diarylacetylenes and Elemental Sulfur.

Journal of the American Chemical Society

Meng L, Fujikawa T, Kuwayama M, Segawa Y, Itami K.
PMID: 27501373
J Am Chem Soc. 2016 Aug 17;138(32):10351-5. doi: 10.1021/jacs.6b06486. Epub 2016 Aug 08.

A simple yet effective method for the formation of thiophene-fused π-systems is reported. When arylethynyl-substituted polycyclic arenes were heated in DMF in the presence of elemental sulfur, the corresponding thiophene-fused polycyclic arenes were obtained via cleavage of the ortho-C-H...

Superhydrophilic Functionalization of Microfiltration Ceramic Membranes Enables Separation of Hydrocarbons from Frac and Produced Water.

Scientific reports

Maguire-Boyle SJ, Huseman JE, Ainscough TJ, Oatley-Radcliffe DL, Alabdulkarem AA, Al-Mojil SF, Barron AR.
PMID: 28947793
Sci Rep. 2017 Sep 25;7(1):12267. doi: 10.1038/s41598-017-12499-w.

The environmental impact of shale oil and gas production by hydraulic fracturing (fracking) is of increasing concern. The biggest potential source of environmental contamination is flowback and produced water, which is highly contaminated with hydrocarbons, bacteria and particulates, meaning...

Tuning of the Electronic Properties of Armchair Graphene Nanoribbons through Functionalization: Theoretical Study of (1)Δg O2 Border Addition.

Chemphyschem : a European journal of chemical physics and physical chemistry

Ghigo G, Maranzana A, Tonachini G.
PMID: 26401974
Chemphyschem. 2015 Oct 05;16(14):3030-7. doi: 10.1002/cphc.201500459. Epub 2015 Aug 17.

We report the results of a DFT study of the border oxidation by (1) Δg O2 of molecular models of armchair graphene nanoribbons (a-GNRs). The aim of this work is to propose a new method, as an alternative or...

Characterizing particulate polycyclic aromatic hydrocarbon emissions from diesel vehicles using a portable emissions measurement system.

Scientific reports

Zheng X, Wu Y, Zhang S, Hu J, Zhang KM, Li Z, He L, Hao J.
PMID: 28855647
Sci Rep. 2017 Aug 30;7(1):10058. doi: 10.1038/s41598-017-09822-w.

Particulate polycyclic aromatic hydrocarbons (p-PAHs) emitted from diesel vehicles are of concern because of their significant health impacts. Laboratory tests, road tunnel and roadside experiments have been conducted to measure p-PAH emissions. While providing valuable information, these methods have...

One-Pot Approach to Prepare Organo-silica Hybrid Capillary Monolithic Column with Intact Mesoporous Silica Nanoparticle as Building Block.

Scientific reports

Liu S, Peng J, Liu Z, Liu Z, Zhang H, Wu R.
PMID: 27698475
Sci Rep. 2016 Oct 04;6:34718. doi: 10.1038/srep34718.

A facile "one-pot" approach to prepare organo-silica hybrid capillary monolithic column with intact mesoporous silica nanoparticle (IMSN) as crosslinker and building block was described. An IMSN crosslinked octadecyl-silica hybrid capillary monolithic column (IMSN-C18 monolithic column) was successfully prepared, and...

Volatile constituents of Dietes bicolor (Iridaceae) and their antimicrobial activity.

Zeitschrift fur Naturforschung. C, Journal of biosciences

Ayoub IM, Youssef FS, El-Shazly M, Ashour ML, Singab AN, Wink M.
PMID: 26368045
Z Naturforsch C J Biosci. 2015 Jul 01;70(7):217-25. doi: 10.1515/znc-2015-0164.

Volatile oils from the leaves, flowers and rhizomes of Dietes bicolor (Steud.) Sweet ex Klatt (Iridaceae) were analyzed using GLC/FID and GLC/MS. A total of 84 compounds were identified accounting for 94.65, 95.63 and 87.09% in the hydrodistilled oils...

Assessment of the effects of phenanthrene and its nitrogen heterocyclic analogues on microbial activity in soil.

SpringerPlus

Anyanwu IN, Semple KT.
PMID: 27006887
Springerplus. 2016 Mar 05;5:279. doi: 10.1186/s40064-016-1918-x. eCollection 2016.

Microbes are susceptible to contaminant effects, and high concentrations of chemical in soil can impact on microbial growth, density, viability and development. As a result of relative sensitivity of microbes to contaminants, toxicity data are important in determining critical...

The Origin of the Catalytic Activity of a Metal Hydride in CO2 Reduction.

Angewandte Chemie (International ed. in English)

Kato S, Matam SK, Kerger P, Bernard L, Battaglia C, Vogel D, Rohwerder M, Züttel A.
PMID: 27061237
Angew Chem Int Ed Engl. 2016 May 10;55(20):6028-32. doi: 10.1002/anie.201601402. Epub 2016 Apr 09.

Atomic hydrogen on the surface of a metal with high hydrogen solubility is of particular interest for the hydrogenation of carbon dioxide. In a mixture of hydrogen and carbon dioxide, methane was markedly formed on the metal hydride ZrCoHx...

Bis(stibahousene).

Journal of the American Chemical Society

Lee VY, Ota K, Ito Y, Gapurenko OA, Sekiguchi A, Minyaev RM, Minkin VI, Gornitzka H.
PMID: 28892377
J Am Chem Soc. 2017 Oct 04;139(39):13897-13902. doi: 10.1021/jacs.7b07712. Epub 2017 Sep 22.

Strained hydrocarbons constitute one of the most prominent classes of organic compounds. Among them, bicyclo[2.1.0]pentene ("housene") derivatives represent a highly challenging and very attractive class. Although organic housenes have been known for more than five decades, there are still...

Versatile synthesis and enlargement of functionalized distorted heptagon-containing nanographenes.

Chemical science

Márquez IR, Fuentes N, Cruz CM, Puente-Muñoz V, Sotorrios L, Marcos ML, Choquesillo-Lazarte D, Biel B, Crovetto L, Gómez-Bengoa E, González MT, Martin R, Cuerva JM, Campaña AG.
PMID: 28451246
Chem Sci. 2017 Feb 01;8(2):1068-1074. doi: 10.1039/c6sc02895k. Epub 2016 Aug 31.

Highly distorted polycyclic aromatic hydrocarbons (PAHs) are predicted to be attractive goals in nanoscience owing to the new properties they can exhibit. We have shown that a variety of functionalized distorted heptagon-containing nanographenes can be easily prepared from simple...

Selective conversion of syngas to light olefins.

Science (New York, N.Y.)

Jiao F, Li J, Pan X, Xiao J, Li H, Ma H, Wei M, Pan Y, Zhou Z, Li M, Miao S, Li J, Zhu Y, Xiao D, He T, Yang J, Qi F, Fu Q, Bao X.
PMID: 26941314
Science. 2016 Mar 04;351(6277):1065-8. doi: 10.1126/science.aaf1835.

Although considerable progress has been made in direct synthesis gas (syngas) conversion to light olefins (C2(=)-C4(=)) via Fischer-Tropsch synthesis (FTS), the wide product distribution remains a challenge, with a theoretical limit of only 58% for C2-C4 hydrocarbons. We present...

Identification of polar transformation products and high molecular weight polycyclic aromatic hydrocarbons (PAHs) in contaminated soil following bioremediation.

The Science of the total environment

Chibwe L, Davie-Martin CL, Aitken MD, Hoh E, Massey Simonich SL.
PMID: 28511355
Sci Total Environ. 2017 Dec 01;599:1099-1107. doi: 10.1016/j.scitotenv.2017.04.190. Epub 2017 May 12.

Bioremediation is a technique commonly used to reduce the toxicity associated with polycyclic aromatic hydrocarbons (PAHs) in contaminated soils. However, the efficacy of bioremedial applications is evaluated based on the removal of a subset of parent (or unsubstituted) PAHs...

Showing 25 to 36 of 9169 entries