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295663

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Evangelia Yiantzi et al.
Analytica chimica acta, 890, 108-116 (2015-09-09)
For the first time, Vacuum Assisted Headspace Solid Phase Microextraction (Vac-HSSPME) is used for the recovery of polycyclic aromatic hydrocarbons (PAHs) from solid matrices. The procedure was investigated both theoretically and experimentally. According to the theory, reducing the total pressure...
Jordy Bouwman et al.
The journal of physical chemistry. A, 116(15), 3907-3917 (2012-03-21)
The reactions of the ethynyl radical (C(2)H) with ethene (C(2)H(4)) and propene (C(3)H(6)) are studied under low temperature conditions (79 K) in a pulsed Laval nozzle apparatus. Ethynyl radicals are formed by 193 nm photolysis of acetylene (C(2)H(2)) and the...
Copolymerization of ethylene and propylene with functionalized vinyl monomers by palladium (II) catalysts.
Johnson LK, et al.
Journal of the American Chemical Society, 118(1), 267-268 (1996)
S Wang et al.
Gene therapy, 22(1), 104-110 (2014-10-31)
Recombinant adeno-associated virus (rAAV) has shown great promise as a potential cure for neurodegenerative diseases. The existence of the blood-brain barrier (BBB), however, hinders efficient delivery of the viral vectors. Direct infusion through craniotomy is the most commonly used approach...
Hui Kong et al.
Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 37(2), 255-257 (2012-06-29)
To study the plasma protein binding rate of isopropylidene-shikimic acid. The ultrafiltration was employed to determine the plasma protein binding rate of isopropylidene-shikimic acid. The plasma concentrations of isopropylidene-shikimic acid were measured by HPLC. The plasma protein binding rate of...
Takao Koeduka et al.
Biochemical and biophysical research communications, 436(1), 73-78 (2013-05-28)
Eugenol, a volatile phenylpropene found in many plant species, exhibits antibacterial and acaricidal activities. This study attempted to modify the production of eugenol and its glycosides by introducing petunia coniferyl alcohol acetyltransferase (PhCFAT) and eugenol synthase (PhEGS) into hybrid aspen....
Y Zhao et al.
Meat science, 107, 57-63 (2015-05-08)
Dry-cured hams often become infested with ham mites (Tyrophagus putrescentiae) during the aging process. Methyl bromide has been used to fumigate dry cured ham plants and is the only available fumigant that is effective at controlling ham mite infestations. However...
Deiene Garcia et al.
Journal of chromatography. A, 1410, 164-172 (2015-08-11)
A molecularly imprinted polymer (MIP) based methodology is described here for the determination of compounds that belong to the 4-ethylphenol (4EP) metabolic pathway in red wines. To this end, two MIP materials have been developed: a 4EP MIP as a...
Jörg P Thielemann et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 14(2), 441-447 (2013-01-03)
The structure of silica SBA-15-supported molybdenum oxide catalysts is investigated during selective oxidation of propylene at 500 °C using operando Raman spectroscopy. The active catalysts contain mixtures of dispersed molybdenum oxide species exhibiting monooxo and dioxo structure. An increase in...
L Martín-González et al.
Environmental science & technology, 49(14), 8666-8674 (2015-06-26)
A stable enrichment culture derived from Besòs river estuary sediments stoichiometrically dechlorinated 1,2-dichloropropane (1,2-DCP) to propene. Sequential transfers in defined anaerobic medium with the inhibitor bromoethanesulfonate produced a sediment-free culture dechlorinating 1,2-DCP in the absence of methanogenesis. Application of previously...
Kelvin H-C Chen et al.
Journal of inorganic biochemistry, 111, 10-17 (2012-04-10)
Recently, a native bacteriohemerythrin (McHr) has been identified in Methylococcus capsulatus (Bath). Both the particulate methane monooxygenase (pMMO) and McHr are over-expressed in cells of this bacterium when this strain of methanotroph is cultured and grown under high copper to...
John Kangchun Perng et al.
Annals of biomedical engineering, 40(9), 2059-2068 (2012-05-09)
Ultrasound contrast agents (UCAs) have tremendous potential for in vivo molecular imaging because of their high sensitivity. However, the diagnostic potential of UCAs has been difficult to exploit because current UCAs are based on pre-formed microbubbles, which can only detect...
Pei-Lin Yu et al.
The Journal of biological chemistry, 287(29), 24774-24783 (2012-06-05)
Cyclic adenosine diphosphate ribose is an endogenous Ca(2+) mobilizer involved in diverse cellular processes. A cell membrane-permeable cyclic adenosine diphosphate ribose analogue, cyclic inosine diphosphoribose ether (cIDPRE), can induce Ca(2+) increase in intact human Jurkat T-lymphocytes. Here we synthesized a...
Mary H H Ensom et al.
The Canadian journal of hospital pharmacy, 67(4), 274-279 (2014-09-13)
Dexamethasone is widely used to treat rheumatic and endocrine disorders and chemotherapy-induced nausea and vomiting. A palatable, alcohol-free liquid formulation, with a suitable concentration to allow reasonable administration volume, is available only via extemporaneous compounding. To evaluate the stability of...
Fee Pitsch et al.
Advanced materials (Deerfield Beach, Fla.), 24(31), 4306-4310 (2012-06-22)
An adaptive self-healing ionic liquid nanocomposite membrane comprising a multi-layer support structure hosting the ionic salt [Ag](+) [Tf(2) N](-) is used for the separation of the olefin propylene and the paraffin propane. The ionic salt renders liquid like upon complexation...
Jia Wei et al.
Journal of the American Chemical Society, 135(6), 2132-2135 (2013-01-25)
Modulation of steric interactions remote from the active sites within a series of dinuclear bis-propagators derived from racemic 2-4 was used to attenuate the rate of reversible chain transfer between active transition-metal centers and excess equivalents of inactive main-group-metal alkyl...
The copolymerization of propylene with higher, linear a-olefins.
Van Reenen AJ, et al.
Journal of Polymer Science Part A: Polymer Chemistry, 38(22), 4110-4118 (2000)
Stefan Wuttke et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 18(38), 11959-11967 (2012-08-15)
A reducible MIL-100(Fe) metal-organic framework (MOF) was investigated for the separation of a propane/propene mixture. An operando methodology was applied (for the first time in the case of a MOF) in order to shed light on the separation mechanism. Breakthrough...
Selective vapor-phase epoxidation of propylene over Au/TiO2 catalysts in the presence of oxygen and hydrogen.
Hayashi T, et al.
J. Catal., 178(2), 566-575 (1998)
Oliver Welz et al.
The journal of physical chemistry. A, 119(28), 7116-7129 (2015-04-11)
Low-temperature propane oxidation was studied at P = 4 Torr and T = 530, 600, and 670 K by time-resolved multiplexed photoionization mass spectrometry (MPIMS), which probes the reactants, intermediates, and products with isomeric selectivity using tunable synchrotron vacuum UV...
T Wu et al.
Organic & biomolecular chemistry, 13(8), 2317-2322 (2015-01-03)
The synthesis of water-dispersible nano-assemblies containing upconverting nanoparticles (UCNPs) and porphyrin molecules using a one-pot method is described. When the nano-assemblies are excited by 980 nm near-infrared light, the intensity of the 'green emission' band of the UCNP is reduced...
Dewi P Go et al.
Journal of biomedical materials research. Part A, 103(5), 1849-1863 (2014-09-10)
Tissue engineering is a complex and dynamic process that requires varied biomolecular cues to promote optimal tissue growth. Consequently, the development of delivery systems capable of sequestering more than one biomolecule with controllable release profiles is a key step in...
Mallory L Hammock et al.
ACS nano, 6(4), 3100-3108 (2012-03-09)
The use of organic transistors as sensing platforms provides a number of distinct advantages over conventional detection technologies, including their tunability, portability, and ability to directly transduce binding events without tedious and expensive labeling procedures. However, detection efforts using organic...
Marcela Videira et al.
Parasitology research, 114(7), 2435-2442 (2015-03-31)
Morphological and molecular procedures were used to describe a new species of microsporidian that infects the muscles of the sub-opercular region and the caudal fins of the freshwater Aequidens plagiozonatus in Brazil. This microsporidian forms whitish xenomas containing variable number...
Thomas A Moss et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 19(9), 3071-3081 (2013-01-22)
An efficient catalytic and stereoselective method for the direct construction of protected ethylene-amino and propylene-amino scaffolds attached to quaternary stereocentres is reported. Preliminary investigations revealed a mild base catalysed nucleophilic ring opening of N-sulfonyl aziridines using the commercially available phosphazene...
Krista A Mitchnick et al.
The European journal of neuroscience, 41(6), 773-786 (2015-02-03)
Epigenetic mechanisms are increasingly acknowledged as major players in memory formation. Specifically, DNA methylation is necessary for the formation of long-term memory in various brain regions, including the hippocampus (HPC); however, its role in the perirhinal cortex (PRh), a structure...
Li Zhou et al.
The journal of physical chemistry. A, 121(23), 4464-4474 (2017-05-13)
Two different experimental methods (relative rate and absolute rate methods) were used to measure the rate coefficients for the reactions of NO
Alice Barbaglio et al.
Zoology (Jena, Germany), 118(3), 147-160 (2015-05-11)
The viscoelastic properties of vertebrate connective tissues rarely undergo significant changes within physiological timescales, the only major exception being the reversible destiffening of the mammalian uterine cervix at the end of pregnancy. In contrast to this, the connective tissues of...
Rodrigo Álvarez-Ruiz et al.
Journal of chromatography. A, 1405, 103-115 (2015-06-21)
An analytical method for determining traditional and emerging drugs of abuse in particulate matter, sewage sludge and sediment has been developed and validated. A total of 41 drugs of abuse and metabolites including cocainics, tryptamines, amphetamines, arylcyclohexylamines, cathinones, morphine derivatives...
Christian Schäfer et al.
Organic & biomolecular chemistry, 10(16), 3253-3257 (2012-03-13)
Intramolecular reductive coupling of cycloalkanones tethered to alkynoates in the presence of (η(2)-propene)titanium was successfully performed to provide hydroxy-esters in a diastereoselective manner. Subsequent lactonization afforded angularly fused unsaturated tricyclic lactones which represent relevant substructures of numerous bioactive compounds.
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