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506052

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Warayuth Sajomsang et al.
International journal of biological macromolecules, 50(1), 263-269 (2011-11-22)
Five water-soluble chitosan derivatives were carried out by quaternizing either iodomethane or N-(3-chloro-2-hydroxypropyl) trimethylammonium chloride (Quat188) as a quaternizing agent under basic condition. The degree of quaternization (DQ) ranged between 28±2% and 90±2%. The antifungal activity was evaluated by using
Akram Ayoub et al.
International journal of biological macromolecules, 75, 13-20 (2015-01-21)
Our laboratory has developed a technique to reconstruct in vitro tissue from human cells using the self-assembly tissue-engineering method, which utilizes the ability of fibroblasts to deposit the matrix they secrete. The time necessary for tissue construction, several weeks, is
Beata Jędrzejewska et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 79(5), 985-992 (2011-05-11)
Electronic absorption and fluorescence spectra of eight hemicyanine dyes were recorded at room temperature in several solvents of different polarity. The spectral data were analyzed using the theory of solvatochromism, based on a dielectric continuum description of the solvent and
Lifang Luo et al.
Journal of environmental quality, 40(1), 109-117 (2011-04-15)
Due to ever-increasing state and federal regulations, the future use of fumigants is predicted on reducing negative environmental impacts while offering sufficient pestcontrol efficacy. To foster the development of a best management practice, an integrated tool is needed to simultaneously
Rachel R Schendel et al.
Carbohydrate research, 407, 16-25 (2015-02-24)
In comparison to the annual grain crops dominating current agricultural production, perennial grain species require fewer chemical and energy inputs and improve soil health and erosion control. The possibility for producing sustainable grain harvests from marginal land areas is motivating
Wendell Ho-Tin Law et al.
ChemMedChem, 9(6), 1316-1329 (2014-03-20)
We present a new class of phosphorescent cyclometalated iridium(III) bipyridyl-phenylenediamine complexes [Ir(N^C)2 (bpy-DA)](PF6 ) (bpy-DA=4-(N-(2-amino-5-methoxyphenyl)aminomethyl)-4'-methyl-2,2'-bipyridine; HN^C=2-(2,4-difluorophenyl)pyridine (Hdfppy) (1 a), 2-phenylpyridine (Hppy) (2 a), 2-phenylquinoline (Hpq) (3 a), 2-phenylcinchoninic acid methyl ester (Hpqe) (4 a)) and their triazole counterparts [Ir(N^C)2 (bpy-T)](PF6
Nicholas G Davey et al.
Rapid communications in mass spectrometry : RCM, 29(23), 2187-2194 (2015-11-03)
The ability of membrane introduction mass spectrometry to quantitatively resolve low molecular weight volatile organic compounds (VOCs) such as benzene, toluene, ethylbenzene and xylene (BTEX) using electron ionization (EI) can be compromised by isobaric interferences. This work focuses on reducing
John E Schiel et al.
Journal of mass spectrometry : JMS, 48(4), 533-538 (2013-04-16)
The continually growing list of critical glycosylation-related processes has made analytical methodology for detailed glycan characterization an area of increasing interest. Glycosylation is a post translational modification of unsurpassed complexity due to the variety of compositions and linkages formed by
Sébastien Allard et al.
Water research, 44(15), 4623-4629 (2010-06-29)
This paper demonstrates that manganese oxides can initiate the formation of methyl iodide, a volatile compound that participates to the input of iodine into the atmosphere. The formation of methyl iodide was investigated using a natural manganese oxide in batch
Eric Epstein et al.
Small (Weinheim an der Bergstrasse, Germany), 11(45), 6051-6057 (2015-10-10)
The fabrication and properties of pH-responsive colloidal particles are reported, which change shape rapidly (less than 200 ms), nearly independent of the diffusion of the pH altering species that trigger their actuation, and far more rapid than their Brownian motion.
Shigeo Hayakawa et al.
The Journal of chemical physics, 137(18), 184308-184308 (2012-11-21)
High-energy electron transfer dissociation (HE-ETD) on collisions with alkali metal targets (Cs, K, and Na) was investigated for CH(3)X(+) (X = Cl, Br, and I) ions by a charge inversion mass spectrometry. Relative peak intensities of the negative ions formed
Nasima Akter et al.
Bioscience, biotechnology, and biochemistry, 76(11), 2032-2037 (2012-11-08)
Glutathione (GSH) is involved in abscisic acid (ABA)- and methyl jasmonate (MeJA)-induced stomatal closure in Arabidopsis thaliana. In this study, we examined the effects of GSH-decreasing chemicals, p-nitrobenzyl chloride (PNBC), iodomethane (IDM), and ethacrynic acid (EA), on ABA- and MeJA-induced
Edvard Ehler et al.
Neurotoxicology, 32(3), 307-311 (2011-02-19)
Dichloromethane and iodomethane are colorless relatively volatile liquids, which are used as solvents in chemical manufacturing processes. The major route of exposure is via inhalation and to a lesser extent through the skin and digestive tract. Both substances are characterized
Azarmidokht Gholamipour-Shirazi et al.
Organic & biomolecular chemistry, 10(40), 8059-8063 (2012-09-15)
We describe here the determination of the alkylation rate of a set of organic superbases by iodomethane in DMF using a microfluidic continuous flow reactor. Surprisingly, log k(Alkylation) follows the inverse trend of pK(BH+) of the base. Mayr's equation allows
Erin N Mayfield et al.
Journal of environmental management, 106, 93-101 (2012-05-12)
We examine the progress of the phaseout of the use of the pesticide methyl bromide in the production of California field strawberries. This phaseout is required under the Montreal Protocol and has been contentious in this sector, which receives exemptions
Ivan Sanchez-De Melo et al.
Journal of proteomics, 127(Pt B), 225-233 (2015-04-25)
The pharmaceutical market has entered an era in which the production of new therapeutics is being often replaced by "biosimilars", copies of already commercialized products waiting for the patents to expire in order to be distributed in a more competitive
Tsung-Heng Tsai et al.
Journal of proteome research, 13(11), 4859-4868 (2014-08-01)
Defining clinically relevant biomarkers for early stage hepatocellular carcinoma (HCC) in a high-risk population of cirrhotic patients has potentially far-reaching implications for disease management and patient health. Changes in glycan levels have been associated with the onset of numerous diseases
Microhydration effects on the intermediates of the S(N)2 reaction of iodide anion with methyl iodide.
Keisuke Doi et al.
Angewandte Chemie (International ed. in English), 52(16), 4380-4383 (2013-01-31)
Kazunori Kawamura et al.
Nuclear medicine and biology, 39(1), 89-99 (2011-08-13)
To explore the possible use of positron emission tomography (PET) probes for imaging of I(2)-imidazoline receptors (I(2)Rs) in peripheral tissues, we labeled two new I(2)R ligands, 2-[2-(o-tolyl)vinyl]-4,5-dihydro-1H-imidazole (K(i) for I(2)Rs, 3.7 nM) and 2-[2-(o-tolyl)ethyl]-4,5-dihydro-1H-imidazole (K(i) for I(2)Rs, 1.7 nM) with
Hsuan-Wei Huang et al.
Journal of proteomics, 128, 92-104 (2015-07-22)
Recent progress in snake venomics has shed much light on the intra-species variation among the toxins from different geographical regions and has provided important information for better snakebite management. Most previous reports on snake venomics were based on venoms pooled
Radiofrequency pulse sequences which compensate their own imperfections. 1980.
Ray Freeman et al.
Journal of magnetic resonance (San Diego, Calif. : 1997), 213(2), 247-273 (2011-12-14)
Richeng Xuan et al.
Environmental science & technology, 46(11), 6143-6149 (2012-04-27)
Implicated as a stratospheric ozone-depleting compound, methyl bromide (MeBr) is being phased out despite being considered to be the most effective soil fumigant. Its alternatives, i.e., 1,3-dichloropropene (1,3-D, which includes cis and trans isomers), chloropicrin (CP), and methyl iodide (MeI)
Rainer Glaser et al.
Journal of agricultural and food chemistry, 60(7), 1776-1787 (2012-02-09)
The results are reported of a theoretical study of iodomethane (H(3)C-I, 1) and chloropicrin (Cl(3)C-NO(2), 2), of the heterodimers 3-6 formed by aggregation of 1 and 2, and of their addition products 7 and 8 and their possible fragmentation reactions
Michael L Granda et al.
American journal of physiology. Renal physiology, 307(1), F116-F121 (2014-05-09)
The intrarenal dopamine system is important for signaling and natriuresis, and significant dysfunction is associated with hypertension and kidney disease in ex vivo studies. Dopamine receptors also modulate and are modulated by the renin-angiotensin-aldosterone system. Here, we show the first
Nicholas J Lodge et al.
Nuclear medicine and biology, 41(6), 524-535 (2014-05-06)
A radioligand for measuring the density of corticotropin-releasing factor subtype-1 receptors (CRF1 receptors) in living animal and human brain with positron emission tomography (PET) would be a useful tool for neuropsychiatric investigations and the development of drugs intended to interact
Joel E Schmidt et al.
Angewandte Chemie (International ed. in English), 53(32), 8372-8374 (2014-06-26)
Crystalline molecular sieves are used in numerous applications, where the properties exploited for each technology are the direct consequence of structural features. New materials are typically discovered by trial and error, and in many cases, organic structure-directing agents (OSDAs) are
Sarah J Feakins et al.
Rapid communications in mass spectrometry : RCM, 27(3), 430-436 (2013-01-03)
A published method to determine the hydrogen isotope ((2)H/(1)H) ratios of methoxyl groups, cleaved from lignin by hydroiodic acid (HI), calls for the analysis of methyl iodide (CH(3)I). However, analysis of halogenated compounds by gas chromatography/pyrolysis/isotope ratio mass spectrometry (GC/P/IRMS)
Qifei Cong et al.
Carbohydrate research, 393, 43-50 (2014-06-03)
COB1B1S2 was isolated from an alkaline extract of Cassia obtusifolia seeds, and purified by anion-exchange and gel permeation chromatography. It contains arabinose, xylose, and glucuronic acid, in the molar ratio of 5:81:14, with an apparent molecular weight estimated to be
Ana Pascual et al.
Biomacromolecules, 16(4), 1169-1178 (2015-03-13)
In this study, a new family of broad-spectrum antimicrobial polycarbonate hydrogels has been successfully synthesized and characterized. Tertiary amine-containing eight-membered monofunctional and difunctional cyclic carbonates were synthesized, and chemically cross-linked polycarbonate hydrogels were obtained by copolymerizing these monomers with a
Li-Chan Yang et al.
Carbohydrate polymers, 111, 856-863 (2014-07-20)
Dendrobium tosaense is a medicinal Dendrobium species widely used in traditional medicine. This study demonstrated some structural characterizations and immunomodulatory activity of the water-soluble polysaccharides derived from the stem of D. tosaense (DTP). DTP was fractioned using DEAE-650 M anion-exchange
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