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显示 1-30 共 629 条结果 关于 "294993" 范围 论文
Atin Pramanik et al.
Dalton transactions (Cambridge, England : 2003), 44(33), 14604-14612 (2015-07-25)
Developing new materials for electrochemical supercapacitors with higher energy density has recently gained tremendous impetus in the context of effective utilization of renewable energy. Herein, we report a simple one-pot synthesis of bundled nanorods of Cu(OH)2 embedded in a matrix
Jose Serate et al.
Biotechnology for biofuels, 8, 180-180 (2015-11-20)
Microbial conversion of lignocellulosic feedstocks into biofuels remains an attractive means to produce sustainable energy. It is essential to produce lignocellulosic hydrolysates in a consistent manner in order to study microbial performance in different feedstock hydrolysates. Because of the potential
Shaohua Zuo et al.
Extremophiles : life under extreme conditions, 19(4), 841-851 (2015-06-17)
Bacterial L-asparaginase catalyzes the hydrolysis of L-asparagine to L-aspartic acid. It is normally used as an antineoplastic drug applied in lymphoblastic leukemia chemotherapy and as a food processing aid in baked or fried food industry to inhibit the formation of
H Tomšíková et al.
Journal of pharmaceutical and biomedical analysis, 95, 265-272 (2014-04-08)
Elevated levels of pteridines can indicate the activation of cellular immune system by certain diseases. No work dealing with the simultaneous determination of urinary neopterin, biopterin and their reduced forms has been published. Therefore, a new SPE-UHPLC-FD method for the
Yuanhua Sang et al.
Advanced materials (Deerfield Beach, Fla.), 27(2), 363-369 (2014-11-22)
Narrow-bandgap semiconductor WS2 nanosheets are active photocatalysts, either under visible or under NIR irradiation. The photocatalyst functions are confirmed via photogeneration of an electron-hole pair, with a low rate of recombination.
Heba F Mansour et al.
Drug development and industrial pharmacy, 41(4), 650-657 (2014-02-27)
Enhancement of the dissolution rate of the poorly water-soluble hypoglycemic agent, gliclazide, by the aid of lyophilization was investigated. Mannitol, sodium lauryl sulfate (SLS) and polyvinyl pyrrolidone (PVP-k-30) were employed in different weight ratios (43%, 56% and 64% w/w, respectively)
Sarah Rodríguez-Martínez et al.
Water research, 77, 119-132 (2015-04-13)
Bacteria of the genus Legionella cause water-based infections, resulting in severe pneumonia. To improve our knowledge about Legionella spp. ecology, its prevalence and its relationships with environmental factors were studied. Seasonal samples were taken from both water and biofilm at
Young Hoon Jung et al.
Bioprocess and biosystems engineering, 38(9), 1639-1644 (2015-05-02)
We evaluated the feasibility of whole slurry (pretreated lignocellulose) saccharification and fermentation for producing ethanol from maleic acid-pretreated rice straw. The optimized conditions for pretreatment were to treat rice straw at a high temperature (190 °C) with 1 % (w/v) maleic acid
Gitte Dam et al.
Metabolic brain disease, 28(2), 217-220 (2013-01-15)
Branched-chain amino acids (BCAA) are used as a therapeutic nutritional supplement in patients with cirrhosis and hepatic encephalopathy (HE). During liver disease, the decreased capacity for urea synthesis and porto-systemic shunting reduce the hepatic clearance of ammonia and skeletal muscle
Uliana Kostiv et al.
Beilstein journal of nanotechnology, 6, 2290-2299 (2016-01-07)
NaYF4:Yb(3+)/Er(3+) nanoparticles were synthesized by thermal decomposition of lanthanide trifluoroacetates using oleylamine (OM) as both solvent and surface binding ligand. The effect of reaction temperature and time on the properties of the particles was investigated. The nanoparticles were characterized by
Sefer Baday et al.
Biochemistry, 52(40), 7091-7098 (2013-09-12)
The ammonium transporters of the Amt/Rh family facilitate the diffusion of ammonium across cellular membranes. Functional data suggest that Amt proteins, notably found in plants, transport the ammonium ion (NH4(+)), whereas human Rhesus (Rh) proteins transport ammonia (NH3). Comparison between
A Oestmann et al.
Deutsche medizinische Wochenschrift (1946), 139(30), 1518-1520 (2014-07-30)
A 54-year old man had suffered from advanced multiple myeloma for two years. After initially good response the myeloma was refractrory to treatment with dexamethasone, cyclophosphamide, bortezomibe, zoledronate and additionally doxorubicine. The patient then complained of dyspnea without clinical signs
M Qasim et al.
Nanotechnology, 26(28), 285102-285102 (2015-06-30)
Candida albicans is a diploid fungus that causes common infections such as denture stomatitis, thrush, urinary tract infections, etc. Immunocompromised patients can become severely infected by this fungus. Development of an effective anticandidal agent against this pathogenic fungus, therefore, will
Tina Sandersfeld et al.
The Journal of experimental biology, 218(Pt 15), 2373-2381 (2015-06-10)
As a response to ocean warming, shifts in fish species distribution and changes in production have been reported that have been partly attributed to temperature effects on the physiology of animals. The Southern Ocean hosts some of the most rapidly
Junchao Duan et al.
Particle and fibre toxicology, 11, 50-50 (2014-10-01)
Given that the effects of ultrafine fractions (<0.1 μm) on ischemic heart diseases (IHD) and other cardiovascular diseases are gaining attention, this study is aimed to explore the influence of silica nanoparticles (SiNPs)-induced autophagy on endothelial cell homeostasis and angiogenesis.
Kalimuthu Pandi et al.
Carbohydrate polymers, 134, 732-739 (2015-10-03)
Adsorption is a significant reaction occurs between adsorbent/water interface for controlling the pollutants in the aqueous environment. In this regard, an eco-magnetic biosorbent was prepared by uniform deposition of magnetic Fe3O4 particles on the surface of nano-hydroxyapatite (n-HAp)/chitosan (CS) nanocomposite
Hamidreza Shagholani et al.
International journal of biological macromolecules, 78, 130-136 (2015-03-10)
Magnetite nanoparticles were synthesized by coprecipitation under ultrasonication followed by coating with chitosan. Polyvinyl alcohol (PVA) is then combined with the chitosan that coated the magnetite nanoparticles. The combination occurs by hydrogen binding and ionic cross-linking of the amino and
L Bakhtiari et al.
Materials science & engineering. C, Materials for biological applications, 53, 1-6 (2015-06-05)
Mesoporous hydroxyapatite with different pore diameters and pore volumes were synthesized by the self-assembly method using Cetyltrimethylammonium bromide (CTAB) as the cationic surfactant and 1-dodecanethiol as the pore expander at different micellization pHs, solvent types and surfactant concentrations. Results of
Da-Hye Kim et al.
Environmental pollution (Barking, Essex : 1987), 192, 171-178 (2014-06-24)
Serum and urine samples from 120 children aged 5-13 years from Dae-gu, Korea, were analyzed for 16 perfluorinated compounds (PFCs). The total PFC concentrations in the serum were 4.26-29.70 ng/mL, and perfluorohexanesulfonate (PFHxS), perfluorooctanoic acid (PFOA), perfluorooctanesulfonate (PFOS, which was dominant
Ellen J B Derissen et al.
Journal of pharmaceutical and biomedical analysis, 110, 58-66 (2015-03-26)
5-Fluorouracil (5-FU) and its oral prodrug capecitabine are among the most widely used chemotherapeutics. For cytotoxic activity, 5-FU requires cellular uptake and intracellular metabolic activation. Three intracellular formed metabolites are responsible for the antineoplastic effect of 5-FU: 5-fluorouridine 5'-triphosphate (FUTP)
Patrick M Erwin et al.
The ISME journal, 8(3), 575-588 (2013-10-25)
Ascidians are ecologically important components of marine ecosystems yet the ascidian microbiota remains largely unexplored beyond a few model species. We used 16S rRNA gene tag pyrosequencing to provide a comprehensive characterization of microbial symbionts in the tunic of 42
Tharmala Tharmalingam et al.
Biotechnology and bioengineering, 112(6), 1146-1154 (2014-12-30)
Glycosylation is a critical characteristic of biotherapeutics because of its central role in in vivo efficacy. Multiple factors including medium composition and process conditions impact protein glycosylation and characterizing cellular response to these changes is essential to understand the underlying
Marion Raters et al.
Journal of agricultural and food chemistry, 63(25), 5930-5934 (2015-06-16)
A quick and selective analytical method was developed for the simultaneous quantitation of 2-methylimidazole, 4-methylimidazole, and 2-acetyl-4-(1,2,3,4-tetrahydroxybutyl)imidazole, which are known to be formed by Maillard reactions. The methodology reported here employs stable-isotope dilution analysis (SIDA) using 4-methylimidazole-d6 and [(13)C6]-2-acetyl-4-(1,2,3,4-tetrahydroxybutyl)imidazole as
Giovanni G Giobbe et al.
Nature methods, 12(7), 637-640 (2015-06-02)
Microengineering human "organs-on-chips" remains an open challenge. Here, we describe a robust microfluidics-based approach for the differentiation of human pluripotent stem cells directly on a chip. Extrinsic signal modulation, achieved through optimal frequency of medium delivery, can be used as
Lucas C R Silva et al.
Scientific reports, 5, 13141-13141 (2015-08-22)
The influence of carbon dioxide (CO2) and soil fertility on the physiological performance of plants has been extensively studied, but their combined effect is notoriously difficult to predict. Using Coffea arabica as a model tree species, we observed an additive
Elmira Farrokhtakin et al.
Journal of colloid and interface science, 449, 87-91 (2015-01-03)
The library of plasmonic nanosystems keeps expanding with novel structures with the potential to provide new solutions to old problems in science and technology. We report the synthesis of a novel plasmonic system based on the growth of gold nanowires
Nicholas P van der Meulen et al.
Nuclear medicine and biology, 42(9), 745-751 (2015-06-22)
(44)Sc, a PET radionuclide, has promising decay characteristics (T1/2 = 3.97 h, Eβ(+)av = 632 keV) for nuclear imaging and is an attractive alternative to the short-lived (68)Ga (T1/2 = 68 min, Eβ(+)av = 830 keV). The aim of this
M Bai et al.
Alimentary pharmacology & therapeutics, 40(1), 63-71 (2014-05-17)
Use of TIPSS is associated with increases in ammonia concentration and hepatic encephalopathy (HE) risk. L-ornithine-L-aspartate (LOLA) is effective in reducing ammonia concentration. To evaluate the effects of LOLA on venous ammonia concentration after TIPSS. The included patients were randomised
Claudia Sánchez et al.
Biotechnology progress, 31(5), 1226-1236 (2015-07-15)
In this work, in silico flux balance analysis is used for predicting the metabolic behavior of Streptomyces clavuligerus during clavulanic acid production. To choose the best objective function for use in the analysis, three different optimization problems are evaluated inside
A N Kadam et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 133, 669-676 (2014-07-06)
We report herein, nitrogen doped TiO2 nanostructure synthesized by simple microwave assisted method, where ammonia was used as hydrolyzing agent. The synthesized nanomaterials were characterized by means of X-ray diffraction (XRD) which demonstrated that N-doped TiO2 is in anatase phase
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