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Showing 1 to 12 of 260 entries
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Soins; la revue de reference infirmiere

Vega I, Freiermuth JP, Lefebvre F, Baudin B, Lefort H.
PMID: 29153223
Soins. 2017 Nov;62(820):61-63. doi: 10.1016/j.soin.2017.09.015.

No abstract available.

Metatranscriptomic and metagenomic description of the bacterial nitrogen metabolism in waste water wet oxidation effluents.

Heliyon

Crovadore J, Soljan V, Calmin G, Chablais R, Cochard B, Lefort F.
PMID: 29062974
Heliyon. 2017 Oct 18;3(10):e00427. doi: 10.1016/j.heliyon.2017.e00427. eCollection 2017 Oct.

Anaerobic digestion is a common method for reducing the amount of sludge solids in used waters and enabling biogas production. The wet oxidation process (WOX) improves anaerobic digestion by converting carbon into methane through oxidation of organic compounds. WOX...

Physico-chemical characteristics of topsoil for contrasted forest, agricultural, urban and industrial land uses in France.

The Science of the total environment

Joimel S, Cortet J, Jolivet CC, Saby NP, Chenot ED, Branchu P, Consalès JN, Lefort C, Morel JL, Schwartz C.
PMID: 26745291
Sci Total Environ. 2016 Mar 01;545:40-7. doi: 10.1016/j.scitotenv.2015.12.035. Epub 2015 Dec 30.

Soil quality is related to soil characteristics such as fertility and contamination. The aim of this study is to assess the effect of land use on these soil characteristics and to confirm the following anthropisation gradient: (i) forest, (ii)...

Nazarov reactions intercepted by (4 + 3) cycloadditions with oxygen-substituted dienes.

The Journal of organic chemistry

LeFort FM, Mishra V, Dexter GD, Morgan TD, Burnell DJ.
PMID: 25984922
J Org Chem. 2015 Jun 05;80(11):5877-86. doi: 10.1021/acs.joc.5b00914. Epub 2015 May 22.

The oxyallyl cation intermediate from the Lewis acid mediated Nazarov reaction of an allenyl vinyl ketone was intercepted by acyclic, 2-silyloxy-substituted butadienes by highly regioselective (4 + 3) cycloadditions. Stereoselectivity was often modest, but in some instances steric interactions...

Asymmetric Hydrogenation of 3-Substituted Pyridinium Salts.

Chemistry (Weinheim an der Bergstrasse, Germany)

Renom-Carrasco M, Gajewski P, Pignataro L, de Vries JG, Piarulli U, Gennari C, Lefort L.
PMID: 27140832
Chemistry. 2016 Jul 04;22(28):9528-32. doi: 10.1002/chem.201601501. Epub 2016 Jun 03.

The use of an equivalent amount of an organic base leads to high enantiomeric excess in the asymmetric hydrogenation of N-benzylated 3-substituted pyridinium salts into the corresponding piperidines. Indeed, in the presence of Et3 N, a Rh-JosiPhos catalyst reduced...

Polymer Brushes for Membrane Separations: A Review.

ACS applied materials & interfaces

Keating JJ, Imbrogno J, Belfort G.
PMID: 27709877
ACS Appl Mater Interfaces. 2016 Oct 26;8(42):28383-28399. doi: 10.1021/acsami.6b09068. Epub 2016 Oct 13.

The fundamentals and applications of polymer brush-modified membranes are reviewed. This new class of synthetic membranes is explored with an emphasis on tuning the membrane performance through polymer brush grafting. This work highlights the intriguing performance characteristics of polymer...

Non-Pincer-Type Manganese Complexes as Efficient Catalysts for the Hydrogenation of Esters.

Angewandte Chemie (International ed. in English)

van Putten R, Uslamin EA, Garbe M, Liu C, Gonzalez-de-Castro A, Lutz M, Junge K, Hensen EJM, Beller M, Lefort L, Pidko EA.
PMID: 28429449
Angew Chem Int Ed Engl. 2017 Jun 19;56(26):7531-7534. doi: 10.1002/anie.201701365. Epub 2017 Apr 21.

Catalytic hydrogenation of carboxylic acid esters is essential for the green production of pharmaceuticals, fragrances, and fine chemicals. Herein, we report the efficient hydrogenation of esters with manganese catalysts based on simple bidentate aminophosphine ligands. Monoligated Mn PN complexes...

Event-by-event analysis of proton-induced nuclear multifragmentation: determination of the phase transition universality class in a system with extreme finite-size constraints.

Physical review letters

Kleine Berkenbusch M, Bauer W, Dillman K, Pratt S, Beaulieu L, Kwiatkowski K, Lefort T, Hsi WC, Viola VE, Yennello SJ, Korteling RG, Breuer H.
PMID: 11801007
Phys Rev Lett. 2002 Jan 14;88(2):022701. doi: 10.1103/PhysRevLett.88.022701. Epub 2001 Dec 26.

A percolation model of nuclear fragmentation is used to interpret 10.2 GeV/c p+197Au multifragmentation data. Emphasis is put on finding signatures of a continuous nuclear matter phase transition in finite nuclear systems. Based on model calculations, corrections accounting for...

Synthesis and application in asymmetric C-C bond formation of solution phase ligand libraries of monodentate phosphoramidites.

Organic & biomolecular chemistry

Duursma A, Lefort L, Boogers JA, de Vries AH, de Vries JG, Minnaard AJ, Feringa BL.
PMID: 15188032
Org Biomol Chem. 2004 Jun 21;2(12):1682-4. doi: 10.1039/b404996a. Epub 2004 May 25.

A library of 96 unique monodentate phosphoramidite ligands has been synthesized in solution and used in the asymmetric conjugate addition of potassium vinyltrifluoroborate to enones resulting in up to 88% ee.

Molecular dynamics of a short-range ordered smectic phase nanoconfined in porous silicon.

The Journal of chemical physics

Guégan R, Morineau D, Lefort R, Moréac A, Béziel W, Guendouz M, Zanotti JM, Frick B.
PMID: 17313239
J Chem Phys. 2007 Feb 14;126(6):064902. doi: 10.1063/1.2435366.

4-n-octyl-4-cyanobiphenyl has been recently shown to display an unusual sequence of phases when confined into porous silicon (PSi). The gradual increase of oriented short-range smectic (SRS) correlations in place of a phase transition has been interpreted as a consequence...

Membranes and bioreactors: a technical challenge in biotechnology.

Biotechnology and bioengineering

Belfort G.
PMID: 18588019
Biotechnol Bioeng. 1989 Mar;33(8):1047-66. doi: 10.1002/bit.260330814.

Integrating the properties of synthetic membranes with biological catalysts such as cells and enzymes forms the basis of an exciting new technology called membrane bioreactors. The impetus behind this marriage comes from the recent spectacular advances in recombinant DMA...

Cross-flow membrane microfiltration of a bacteriol fermentation broth.

Biotechnology and bioengineering

Nagata N, Herouvis KJ, Dziewulski DM, Belfort G.
PMID: 18588126
Biotechnol Bioeng. 1989 Aug 05;34(4):447-66. doi: 10.1002/bit.260340405.

Although cross-flow membrane filtration is a very attractive option for harvesting cells and recovering enzymes from cell homogenates, the process is not without its problems. Foremost of these is the deposit of dissolved and suspended solutes onto the membrane...

Showing 1 to 12 of 260 entries