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295396

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Sibel Duman et al.
Journal of nanoscience and nanotechnology, 13(7), 4954-4961 (2013-08-02)
B-N polymer embedded iron(0) nanoparticles (NPs) were in-situ generated from the reduction of iron(III) acetylacetonate during the dehydrogenation of ammonia borane (AB) in THF solution at 40.0 +/- 0.5 degrees C. The iron(0) NPs could be isolated as powder from...
Tomohiro Nishizawa et al.
Science (New York, N.Y.), 341(6142), 168-172 (2013-05-25)
Ca(2+)/cation antiporters catalyze the exchange of Ca(2+) with various cations across biological membranes to regulate cytosolic calcium levels. The recently reported structure of a prokaryotic Na(+)/Ca(2+) exchanger (NCX_Mj) revealed its overall architecture in an outward-facing state. Here, we report the...
Adam J Biacchi et al.
ACS nano, 9(2), 1707-1720 (2015-01-30)
The shapes of noble metal nanoparticles directly impact their properties and applications, including in catalysis and plasmonics, and it is therefore important to understand how multiple distinct morphologies can be controllably synthesized. Solution routes offer powerful capabilities for shape-controlled nanoparticle...
Xi Wang et al.
Water science and technology : a journal of the International Association on Water Pollution Research, 67(12), 2845-2849 (2013-06-22)
A novel visible light-driven photocatalyst film, MoS₂/Ag/TiO₂, was synthesized on a glass-fiber membrane. The composite catalyst film had a multi-layer structure with Ag as nanoconjunctions between the MoS₂ and TiO₂ layers. The catalyst film performed well for both photocatalytic hydrogen...
M Xiao et al.
European review for medical and pharmacological sciences, 17(8), 1033-1043 (2013-05-11)
Recent studies suggest that hydrogen has great therapeutic and prophylactic potential against organ injury caused by oxidative stress and inflammation. Here we investigated the effect of hydrogen-rich saline on airway inflammation and remodeling in a murine model of asthma. Asthma...
Judith P Klinman et al.
Annual review of biochemistry, 82, 471-496 (2013-06-12)
The relationship between protein dynamics and function is a subject of considerable contemporary interest. Although protein motions are frequently observed during ligand binding and release steps, the contribution of protein motions to the catalysis of bond making/breaking processes is more...
Jie Chen et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(1), 33-38 (2013-12-26)
The rate of bacterial photoinactivation in plasma by methylene blue (MB), especially for Gram-negative bacteria, has been reported to be lower, by about an order of magnitude, than the rate of inactivation in PBS and water solutions. This low inactivation...
Stefano Romano et al.
Archives of microbiology, 196(2), 97-107 (2013-12-21)
In this study, we evaluated the effectiveness of lake sediment as inoculum for hydrogen production through dark fermentation in a repeated batch process. In addition, we investigated the effect of heat treatment, applied to enrich hydrogen-producing bacteria, on the bacterial...
Qu Sheng et al.
Journal of nanoscience and nanotechnology, 14(6), 4706-4709 (2014-04-18)
The effects of different temperatures on the hydrogen sorption characteristics of double-walled carbon nanotubes (DWCNTs) with palladium loading have been investigated. When we use different temperatures, the particle sizes and specific surface areas of the samples are different, which affects...
Hye Ran Kim et al.
Journal of nanoscience and nanotechnology, 13(11), 7745-7750 (2013-11-20)
ZnO has been studied as a strong candidate for high-quality TCO in accordance with increasing demand to replace ITO. The origin of n-doping in ZnO is not clearly understood, but recently, the H2 effect has received attention due to the...
Aimin Shi et al.
PloS one, 9(10), e111188-e111188 (2014-10-28)
Although a number of bioactive peptides are capable of angiotensin I-converting enzyme (ACE) inhibitory effects, little is known regarding the mechanism of peanut peptides using molecular simulation. The aim of this study was to obtain ACE inhibiting peptide from peanut...
Thobeka Kente et al.
Journal of nanoscience and nanotechnology, 13(7), 4990-4995 (2013-08-02)
This paper reports on the synthesis and use of nanostructures of gallium nitride (GaN NSs) and nitrogen doped carbon spheres (NCSs) as support materials for the hydrogenation of cinnamaldehyde. This study provides the first investigation of GaN as a catalyst...
Ondrej L Krivanek et al.
Nature, 514(7521), 209-212 (2014-10-10)
Vibrational spectroscopies using infrared radiation, Raman scattering, neutrons, low-energy electrons and inelastic electron tunnelling are powerful techniques that can analyse bonding arrangements, identify chemical compounds and probe many other important properties of materials. The spatial resolution of these spectroscopies is...
Guillaume Povie et al.
Chimia, 67(4), 250-252 (2013-08-24)
Water or low molecular weight alcohols are, due to their availability, low price and low toxicity ideal reagents for organic synthesis. Recently, it was reported that, despite the very strong BDE of the O-H bond, they can be used as...
Minyue Jiang et al.
Experimental dermatology, 24(11), 847-852 (2015-06-30)
We previously reported that deficiency of the PTHrP nuclear localization sequence (NLS) and C-terminus in PTHrP knockin (PTHrP KI) mice resulted in premature ageing of skin. P27, a cyclin-dependent kinase inhibitor, was upregulated in PTHrP KI mice and acted as...
Marzena Medrek et al.
Acta poloniae pharmaceutica, 70(4), 659-665 (2013-08-08)
The fullerene C60 has chemical properties which seem to predestinate it to be effective transporter of drugs in biological system. To prove this, the DFT/B3LYP (6-31G*) calculations were performed especially in order to determine the structures and energies of the...
M A Shariia et al.
Vestnik rentgenologii i radiologii, (2)(2), 50-54 (2013-07-25)
To define the role of liver magnetic resonance (MR) spectroscopy in the evaluation of therapy for fatty hepatosis. Spectra were studied in 49 patients (30 men and 19 women) whose mean age was 54+/-11 years. A study group consisted: 1)...
K Schuchmann et al.
Science (New York, N.Y.), 342(6164), 1382-1385 (2013-12-18)
Storage and transportation of hydrogen is a major obstacle for its use as a fuel. An increasingly considered alternative for the direct handling of hydrogen is to use carbon dioxide (CO2) as an intermediate storage material. However, CO2 is thermodynamically...
Hirotoshi Morishita et al.
Biochemical and biophysical research communications, 450(1), 767-772 (2014-06-22)
The hydrogen bond network leading from bulk water to the trinuclear copper center in bilirubin oxidase is constructed with Glu463 and water molecules to transport protons for the four-electron reduction of dioxygen. Substitutions of Glu463 with Gln or Ala were...
D Sprecher et al.
Chimia, 67(4), 257-261 (2013-08-24)
Recent experiments are reviewed which have led to the determination of the ionization and dissociation energies of molecular hydrogen with a precision of 0.0007 cm(-)1 (8 mJ/mol or 20 MHz) using a procedure based on high-resolution spectroscopic measurements of high...
Patrick S Fier et al.
Science (New York, N.Y.), 342(6161), 956-960 (2013-11-23)
Fluorinated heterocycles are prevalent in pharmaceuticals, agrochemicals, and materials. However, reactions that incorporate fluorine into heteroarenes are limited in scope and can be hazardous. We present a broadly applicable and safe method for the site-selective fluorination of a single carbon-hydrogen...
Nguyen H Tran et al.
Chemical Society reviews, 42(24), 9454-9479 (2013-09-18)
Presently there is a glut of glycerol as the by-product of biofuel production and it will grow as production increases. The conundrum is how we can consume this material and convert it into a more useful product. One potential route...
A O Marchenko et al.
Biofizika, 58(1), 27-35 (2013-05-09)
The algorithm for the arrangement of hydrogen atoms in twist-hexacycle parametric structures of bound water is developed. The calculation of energetic properties is carried out using the TIP3P and Poltev-Malenkov potentials. Optimization of energy for these structures is fulfilled.
Greg H Rau et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(25), 10095-10100 (2013-06-05)
We experimentally demonstrate the direct coupling of silicate mineral dissolution with saline water electrolysis and H2 production to effect significant air CO2 absorption, chemical conversion, and storage in solution. In particular, we observed as much as a 10(5)-fold increase in...
Metal-free catalytic olefin hydrogenation: low-temperature H2 activation by frustrated Lewis pairs
Greb L, et al.
Angewandte Chemie (International ed. in English), 51(40), 10164-10168 (2012)
Microbiology. An enzymatic route to H2 storage.
Inês A C Pereira
Science (New York, N.Y.), 342(6164), 1329-1330 (2013-12-18)
Seonah Kim et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(1), 149-154 (2013-12-18)
Lytic polysaccharide monooxygenases (LPMOs) exhibit a mononuclear copper-containing active site and use dioxygen and a reducing agent to oxidatively cleave glycosidic linkages in polysaccharides. LPMOs represent a unique paradigm in carbohydrate turnover and exhibit synergy with hydrolytic enzymes in biomass...
Weiti Cui et al.
Ecotoxicology and environmental safety, 105, 103-111 (2014-05-06)
In this report, the effect of hydrogen-rich water (HRW), which was used to investigate the physiological roles of hydrogen gas (H2) in plants recently, on the regulation of plant adaptation to mercury (Hg) toxicity was studied. Firstly, we observed that...
Jong Kwon Lee et al.
Journal of nanoscience and nanotechnology, 13(12), 8110-8115 (2013-11-26)
Magnesia-zirconia (MgO-ZrO2) support was prepared by a sol-gel method, and magnesium vanadate nano-catalysts supported on magnesia-zirconia (X-Mg3(VO4)2/MgO-ZrO2) were then prepared by a wet impregnation method with a variation of vanadium content (X = 6.6, 9.9, 12.8, 15.2, and 19.1 wt%)....
Rahul Banerjee et al.
Nature, 518(7539), 431-434 (2015-01-22)
Methane monooxygenase (MMO) catalyses the O2-dependent conversion of methane to methanol in methanotrophic bacteria, thereby preventing the atmospheric egress of approximately one billion tons of this potent greenhouse gas annually. The key reaction cycle intermediate of the soluble form of...
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