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Showing 1-30 of 35 results for "69110" within Papers
Kallidanthiyil Chellappan Lethesh et al.
Dalton transactions (Cambridge, England : 2003), 48(3), 982-988 (2018-12-24)
Magnesium(ii) complexes, [Mg2+(hfac-)3][Cation+], were prepared as solids from hydrophobic hexafluoroacetylacetonate ionic liquids ([Cation+][hfac-] ILs) and Mg(Tf2N)2. 1-Butyl-3-methylimidazolium ([C4mim]), N-butylpyridinium ([C4Pyr]), N-butyl-N-methylpiperidinium ([C4Pip]), N-hexyl-N-methylmorpholinium ([C6Morp]) and N-butyl-N-methylpyrrolidinium ([C4pyrr]) were used as cationic cores. The [C4Pip][hfac], [C4Pyr][hfac] and [C6Morp][hfac] ILs were prepared
Inhibition of acetylcholinesterase by caffeine, anabasine, methyl pyrrolidine and their derivatives.
N Karadsheh et al.
Toxicology letters, 55(3), 335-342 (1991-03-01)
The inhibition of acetylcholinesterase (AChE) by caffeine, anabasine, methylpyrrolidine and several derivatives was examined. Most of the compounds had moderate inhibitory activity with I50 values in the range of 87-480 microM. The inhibition of AChE by these compounds has not
Acute toxicities to larval rainbow trout of representative compounds detected in Great Lakes fish.
C C Edsall
Bulletin of environmental contamination and toxicology, 46(2), 173-178 (1991-02-01)
Ionic liquid electrolytes for lithium batteries: Synthesis, electrochemical, and cytotoxicity studies.
Madria N, et al.
Journal of Power Sources, 234, 277-284 (2013)
Structure and properties of high stability geminal dicationic ionic liquids.
Anderson J L, et al.
Journal of the American Chemical Society, 127(2), 593-604 (2005)
Mir Ali Farajzadeh et al.
Journal of separation science, 33(23-24), 3767-3773 (2010-10-16)
A simple, rapid and efficient sample preparation technique, dispersive liquid-liquid microextraction, coupled with gas chromatography-flame ionization detection has been developed to determine N-methylpyrrolidine in cefepime. The effect of various experimental factors on the preparation procedure, such as the nature and
Jeffrey O Stull et al.
AIHA journal : a journal for the science of occupational and environmental health and safety, 63(1), 62-71 (2002-02-15)
Although there is a wide variety of work gloves available to users of commercial paint stripping products, there are no published studies examining which type of gloves provide the best protection. To address this need, a multiphase study was undertaken
Guiliang Chen et al.
Journal of pharmaceutical and biomedical analysis, 33(4), 797-801 (2003-11-19)
A new, simple and rapid gas chromatographic method was developed for the determination of N-methylpyrrolidine (NMP) in cefepime and its preparation. NMP was extracted with chloroform from cefepime and its preparation. An HP-1 column was maintained at 100 degrees C.
Vincent P Schnee et al.
Electrophoresis, 27(21), 4141-4148 (2006-11-01)
MEKC and linear solvation free energy relationships (LSFERs) have been used to characterize the solute distribution between water and self-assemblies formed from ionic liquid type mono-chain cationic surfactants containing a cyclic pyrrolidinium head group. Several features of the solvation environment
Michael D Pluth et al.
Proceedings of the National Academy of Sciences of the United States of America, 106(26), 10438-10443 (2009-02-03)
Cyclic amines can be encapsulated in a water-soluble self-assembled supramolecular host upon protonation. The hydrogen-bonding ability of the cyclic amines, as well as the reduced degrees of rotational freedom, allows for the formation of proton-bound homodimers inside of the assembly
Jocelyn C Pinkert et al.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry, 11(5), 642-650 (2006-05-26)
CooA, the only protein known to employ proline as a heme ligand, is a CO-activated transcription factor found in the bacterium Rhodospirillum rubrum. Proline is a heme ligand in both the Fe(III) and Fe(II) states; the sixth ligand is cysteinate
Hsiu-Li Su et al.
Journal of chromatography. A, 1216(27), 5313-5319 (2009-05-26)
This paper describes a sweeping-micellar electrokinetic chromatography (sweeping-MEKC) technique for the determination of seven benzodiazepines, using, as sweeping carriers, the ionic liquid-type cationic surfactants 1-cetyl-3-methylimidazolium bromide (C(16)MIMBr) and N-cetyl-N-methylpyrrolidinium bromide (C(16)MPYB). These surfactants resemble the commonly employed cationic surfactant cetyltrimethylammonium
Bing-Jyun Lu et al.
Scientific reports, 9(1), 13253-13253 (2019-09-15)
Wood has been a crucial natural material for human civilization since prehistoric times. In archaeology, the examination of the wood microstructure is important for the study of architecture, musical instruments, sculptures, and so on. Scanning electron microscopy (SEM) examination is
K M Johansson et al.
Physical chemistry chemical physics : PCCP, 10(20), 2972-2978 (2008-05-14)
We describe a fluidity and conductivity study as a function of composition in N-methylpyrrolidine-acetic acid mixtures. The simple 1 : 1 acid-base mixture appears to form an ionic liquid, but its degree of ionicity is quite low and such liquids
Narayanan Harihara Subramanian et al.
Journal of chromatographic science, 47(7), 549-552 (2009-09-24)
An alternative ion chromatographic method to the existing USP method for the determination of N-methylpyrrolidine (NMP) in cefepime hydrochloride is developed. The cefepime in solution behaves as a strong cation and gets retained in the analytical column, leading to reduction
Sulfuric acid-catalyzed conversion of alkynes to ketones in an ionic liquid medium under mild reaction conditions.
Wong W L, et al.
ACS Catalysis, 1(2), 116-119 (2011)
Xiang Li et al.
Drug delivery, 16(4), 224-229 (2009-06-12)
The aim of this study was to explore the use of Pharmasolve as a new kind of permeability enhancer in ophthalmic drug delivery systems. The ocular irritation of different concentrations of Pharmasolve on rabbit eyes was evaluated in detail. Four
Kenjiro Ono et al.
Experimental neurology, 205(2), 414-424 (2007-04-12)
The aggregation of alpha-synuclein (alphaS) has been implicated as a critical step in the development of Lewy body diseases (LBD) and multiple system atrophy (MSA). Both retrospective and prospective epidemiological studies have consistently demonstrated an inverse association between cigarette smoking
Arpan Manna et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 15(14), 3067-3077 (2014-07-30)
Rate constants and derived activation parameters of organic reactions in aqueous media, in particular Diels-Alder reactions, are sensitive to the presence of cosolvents in water. To enhance the solubility window of water, we introduced ionic liquids as cosolvents in the
Pawel Mroz et al.
Nanomedicine : nanotechnology, biology, and medicine, 7(6), 965-974 (2011-06-08)
Functionalized fullerenes represent a new class of photosensitizer (PS) that is being investigated for photodynamic therapy (PDT) of various diseases, including cancer. We tested the hypothesis that fullerenes could be used to mediate PDT of intraperitoneal (IP) carcinomatosis in a
Burkhard Flick et al.
Toxicology and applied pharmacology, 237(2), 154-167 (2009-03-14)
N-methyl-2-pyrrolidone (NMP), which undergoes extensive biotransformation, has been shown in vivo to cause developmental toxicity and, especially after oral treatment, malformations in rats and rabbits. Data are lacking as to whether the original compound or one of its main metabolites
A R Salomon et al.
Biochemistry, 35(42), 13568-13578 (1996-10-22)
The 42-residues beta-(1-42) peptide is the major protein component of amyloid plaque cores in Alzheimer's disease. In aqueous solution at physiological pH, the synthetic beta-(1-42) peptide readily aggregates and precipitates as oligomeric beta-sheet structures, a process that occurs during amyloid
Monika Dąbrowska et al.
Biomedical chromatography : BMC, 29(3), 388-395 (2014-07-22)
A rapid, accurate and sensitive thin-layer chromatography (TLC) method with densitometric detection has been developed and validated for the determination of cefepime in pharmaceuticals. Chromatographic separation was achieved on a silica gel TLC F254 plates with a mobile phase consisting
Mingwei Zhao et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 19(3), 1076-1081 (2012-12-01)
Highly ordered supramolecular microfibers were constructed through a simple ionic self-assembly strategy from complexes of the N-tetradecyl-N-methylpyrrolidinium bromide (C(14)MPB) surface-active ionic liquid and the small methyl orange (MO) dye molecule, with the aid of patent blue VF sodium salt. By
Yasuhiro Torisawa et al.
Bioorganic & medicinal chemistry, 10(8), 2583-2587 (2002-06-12)
In our solvent optimization study of NaBH(4) reduction, NMP was found to enhance the reactivity. A chemoselective debromination of the bromide and sulfonates can be attained in the new borohydride reagent system: NaBH(4)-LiOTf-NMP. This mixed system worked as an alternative
Ann Fowler et al.
Journal of biomolecular screening, 11(8), 1027-1034 (2006-11-14)
Both the tricyclic and specific serotonin reuptake inhibitor classes of antidepressants act primarily by inhibiting the reuptake of released serotonin by the human serotonin reuptake transporter (hSERT). In this article, the authors describe the use of a fluorescent substrate of
Lijun Wei et al.
Carbohydrate research, 340(9), 1583-1590 (2005-06-01)
4'-Modified avermectin derivatives were designed and synthesized. Some of the new synthetic compounds showed excellent in vivo bioactivity against cabbage larvae when compared to commercially available avermectin B1a. In this synthesis, uncommon thioglycosyl sugar donors, prepared from the hydrolysis of
Chafik Ghayor et al.
The Journal of biological chemistry, 286(27), 24458-24466 (2011-05-27)
Regulation of RANKL (receptor activator of nuclear factor κB ligand)-induced osteoclast differentiation is of current interest in the development of antiresorptive agents. Osteoclasts are multinucleated cells that play a crucial role in bone resorption. In this study, we investigated the
MCM-47: a highly crystalline silicate composed of hydrogen-bonded ferrierite layers.
Burton A, et al.
Chemistry of Materials, 12(10), 2936-2942 (2000)
Kenjiro Ono et al.
Biological psychiatry, 52(9), 880-886 (2002-10-26)
Cerebral deposition of amyloid beta-peptide (Abeta) is a major neuropathologic feature in Alzheimer's disease (AD). A consistent protective effect of smoking on AD has been documented by many case-control studies. It has been suggested that nicotine, a major component of
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