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Showing 1-30 of 328 results for "22874" within Papers
Haiqing Li et al.
Journal of nanoscience and nanotechnology, 14(2), 1425-1440 (2014-04-23)
Carbon nanostructures (CNSs) such as carbon nanotubes, graphene sheets, and nanodiamonds provide an important type of substrate for constructing a variety of hybrid nanomaterials. However, their intrinsic chemistry-inert surfaces make it indispensable to pre-functionalize them prior to immobilizing additional components
Daniel J T Kyle et al.
Biomaterials, 52, 88-102 (2015-03-31)
Reproducing extracellular matrix topographical cues, such as those present within acellular dermal matrix (ADM), in synthetic implant surfaces, may augment cellular responses, independent of surface chemistry. This could lead to enhanced implant integration and performance while reducing complications. In this
H Hayzoun et al.
The Science of the total environment, 502, 296-308 (2014-09-30)
An annual-basis study of the impacts of the anthropogenic inputs from Fez urban area on the water geochemistry of the Sebou and Fez Rivers was conducted mostly focusing on base flow conditions, in addition to the sampling of industrial wastewater
Brent C Christner et al.
Nature, 512(7514), 310-313 (2014-08-22)
Liquid water has been known to occur beneath the Antarctic ice sheet for more than 40 years, but only recently have these subglacial aqueous environments been recognized as microbial ecosystems that may influence biogeochemical transformations on a global scale. Here
Masahito Ueyama et al.
Ecological applications : a publication of the Ecological Society of America, 23(8), 1798-1816 (2014-02-22)
To better understand the spatial and temporal dynamics of CO2 exchange between Arctic ecosystems and the atmosphere, we synthesized CO2 flux data, measured in eight Arctic tundra and five boreal ecosystems across Alaska (USA) and identified growing season and spatial
Xiaoxia Lin et al.
Journal of environmental sciences (China), 25(10), 2150-2156 (2014-02-06)
C,N,S-tridoped TiO2 hollow spheres (labeled as C,N,S-THs) were synthesized using carbon spheres as template and C,N,S-tridoped TiO2 nanoparticles as building blocks. The structure and physicochemical properties of the catalysts were characterized by Xray diffraction (XRD), scanning electron microscopy (SEM), UV-Vis
Patrick J McCormick et al.
Biomedical instrumentation & technology, 47(4), 347-355 (2013-08-08)
Common practice when validating the cleaning of medical devices is to employ clinically relevant test soils as a challenge to the cleaning process. During use, medical devices may come into contact with a variety of materials that are difficult to
Biao Zhong et al.
Environmental monitoring and assessment, 186(10), 6169-6192 (2014-06-12)
This study aimed to assess the degree of potential temperature and precipitation change as predicted by the HadCM3 (Hadley Centre Coupled Model, version 3) climate model for Louisiana, and to investigate the effects of potential climate change on surface soil
Alice Cheng et al.
Biofabrication, 6(4), 045007-045007 (2014-10-08)
Additive manufacturing by laser sintering is able to produce high resolution metal constructs for orthopedic and dental implants. In this study, we used a human trabecular bone template to design and manufacture Ti-6Al-4V constructs with varying porosity via laser sintering.
Stephen D Fried et al.
Science (New York, N.Y.), 346(6216), 1510-1514 (2014-12-20)
Enzymes use protein architecture to impose specific electrostatic fields onto their bound substrates, but the magnitude and catalytic effect of these electric fields have proven difficult to quantify with standard experimental approaches. Using vibrational Stark effect spectroscopy, we found that
Weimin Sun et al.
Applied microbiology and biotechnology, 99(23), 10271-10282 (2015-08-08)
The shift of microbial communities during a transition from mesophilic anaerobic digestion (MAD) to thermophilic anaerobic digestion (TAD) was characterized in two treatments. One treatment was inoculated with sludge and the other was inoculated with manure. In this study, methane
Jessica L Terrell et al.
Nature communications, 6, 8500-8500 (2015-10-13)
Advances in nanotechnology have provided unprecedented physical means to sample molecular space. Living cells provide additional capability in that they identify molecules within complex environments and actuate function. We have merged cells with nanotechnology for an integrated molecular processing network.
Sourav Bhowmick et al.
Environmental monitoring and assessment, 186(10), 6849-6856 (2014-07-06)
An experiment was conducted under laboratory conditions to investigate the effect of two pre-emergence herbicides, viz., thiobencarb (at 1.5 and 4.5 kg active ingredient (a.i.) ha(-1)) and pretilachlor (at 0.5 and 1.5 kg a.i. ha(-1)), on the growth and multiplication
A Hagiwara et al.
Critical reviews in oncology/hematology, 9(4), 319-350 (1989-01-01)
In cancer chemotherapy, a specific drug delivery system is expected since many anticancer drugs show toxicity against not only cancer cells but also against normal tissues. The dosage form comprising anticancer drugs adsorbed on activated carbon particles or encapsulated in
Gerald Schulman
Journal of renal nutrition : the official journal of the Council on Renal Nutrition of the National Kidney Foundation, 22(1), 107-113 (2011-12-28)
Fibrosis plays a major role in the pathogenesis of progressive chronic kidney disease (CKD). The inhibition of the renin-angiotensin system, which promotes fibrosis, has become the standard of care in the treatment of patients with CKD. The use of alternative
K Y Foo et al.
Journal of hazardous materials, 175(1-3), 1-11 (2009-11-03)
Concern about environmental protection has increased over the years from a global viewpoint. To date, the percolation of pesticide waste into the groundwater tables and aquifer systems remains an aesthetic issue towards the public health and food chain interference. With
Chi-lai Ho et al.
Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 55(5), 749-752 (2014-03-29)
We prospectively compared (11)C-acetate with (18)F-FDG in a PET/CT evaluation of multiple myeloma (MM), specifically on diagnostic accuracy, identification of high-risk patients, and monitoring of treatment response. Dual-tracer PET/CT was performed on 35 pathologically and clinically confirmed and untreated patients
Kusum Mehla et al.
Omics : a journal of integrative biology, 19(7), 393-406 (2015-06-11)
Campylobacters are a major global health burden and a cause of food-borne diarrheal illness and economic loss worldwide. In developing countries, Campylobacter infections are frequent in children under age two and may be associated with mortality. In developed countries, they
Katrin Kittler et al.
Analytical and bioanalytical chemistry, 406(24), 5765-5774 (2014-07-30)
Cylindrospermopsin (CYN) is a cyanobacterial toxin associated with human and animal poisonings. Due to its toxicity in combination with its widespread occurrence, the development of reliable methods for selective, sensitive detection and accurate quantification is mandatory. Liquid chromatography tandem mass
Bente Ulvestad et al.
Occupational and environmental medicine, 72(2), 108-113 (2014-11-02)
Tunnel construction workers are exposed to particulate and gaseous air contaminants. Previous studies carried out in the 1990s showed that tunnel construction workers were at increased risk of both short-term and long-term lung function decline. Since then, efforts have been
Dipti D Nayak et al.
Journal of bacteriology, 196(23), 4130-4139 (2014-09-17)
Methylotrophs grow on reduced single-carbon compounds like methylamine as the sole source of carbon and energy. In Methylobacterium extorquens AM1, the best-studied aerobic methylotroph, a periplasmic methylamine dehydrogenase that catalyzes the primary oxidation of methylamine to formaldehyde has been examined
Organic synthesis: Better chemistry through radicals.
Steven L Castle
Nature, 516(7531), 332-333 (2014-12-19)
Daniel Bravo et al.
Archives of microbiology, 197(1), 65-77 (2014-11-10)
The oxalate-carbonate pathway (OCP) is a biogeochemical set of reactions that involves the conversion of atmospheric CO2 fixed by plants into biomass and, after the biological recycling of calcium oxalate by fungi and bacteria, into calcium carbonate in terrestrial environments.
Zuzana Urbanová et al.
FEMS microbiology ecology, 90(3), 633-646 (2014-09-10)
It is not well understood how the ecological status and microbial community composition of spruce swamp forests (SSF) relate to those found in bogs and fens. To clarify this, we investigated biogeochemical parameters and microbial community composition in a bog
Gergo Mezohegyi et al.
Journal of environmental management, 102, 148-164 (2012-03-31)
During the last decade, several physico-chemical and biological techniques have been developed to remove colour from textile wastewaters. Some of these techniques rely on and many will profit from activated carbon (AC). The role of AC is versatile: (1) it
Aniruddha B Patil et al.
Journal of nanoscience and nanotechnology, 13(7), 5061-5068 (2013-08-02)
Present work reports a novel one step, greener protocol for the synthesis of starch-stabilized palladium nanoparticles (PdNPs) with an average particle diameter of 30-40 nm. These particles were stable and uniform in size. In present protocol, the concentrated solar energy
Harumi Osago et al.
Analytical biochemistry, 467, 62-74 (2014-09-10)
We developed a method using liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS) with a selected reaction monitoring (SRM) mode for simultaneous quantitative analysis of glycosaminoglycans (GAGs). Using one-shot analysis with our MS/MS method, we demonstrated the simultaneous quantification of a total
Sarah J Burke et al.
Organic & biomolecular chemistry, 13(9), 2726-2744 (2015-01-20)
Due to the profound extent to which natural products inspire medicinal chemists in drug discovery, there is demand for innovative syntheses of these often complex materials. This article describes the synthesis of tricarbocyclic natural product architectures through an extension of
Melina Nisenbaum et al.
Journal of environmental sciences (China), 25(3), 613-625 (2013-08-08)
We report on the biodegradation of pure hydrocarbons and chemotaxis towards these compounds by an isolated chlorophenol degrader, Pseudomonas strain H. The biochemical and phylogenetic analysis of the 16S rDNA sequence identified Pseudomonas strain H as having 99.56% similarity with
Adrien Vigneron et al.
Applied and environmental microbiology, 81(10), 3451-3459 (2015-03-15)
In the Sonora Margin cold seep ecosystems (Gulf of California), sediments underlying microbial mats harbor high biogenic methane concentrations, fueling various microbial communities, such as abundant lineages of anaerobic methanotrophs (ANME). However, the biodiversity, distribution, and metabolism of the microorganisms
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