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Palabra clave:'84380'
Mostrando 1-30 of 452 resultados for "

84380

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Yang Zhang et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 960, 52-58 (2014-05-03)
A novel TiO2/diatomite composite (TD) was prepared and then characterized by scanning electron microscope (SEM) and Fourier Transform Infrared (FTIR). The results of SEM showed that after modification, the porous surface of diatomite was covered with TiO2. Both diatomite and
Heterogeneous reactivity of gaseous nitric acid on Al2O3, CaCO3, and atmospheric dust samples: A Knudsen cell study.
Hanisch F and Crowley JN.
The Journal of Physical Chemistry A, 105(13), 3096-3106 (2001)
C T R Viana et al.
Microvascular research, 86, 44-51 (2012-12-21)
Inflammation, angiogenesis and cytokine production are common features of almost, if not all tumors. However, the extent of these processes induced by different types of tumors has not been evaluated. We investigated the growth pattern of the experimental metastatic tumors
Paolo Boggio et al.
Organic & biomolecular chemistry, 13(11), 3288-3297 (2015-02-04)
In this study the hydroboration reaction has been exploited to produce in only four steps a new lipophilic GdBNCT/MRI agent (PB01). As a matter of fact, the formation of a new B–C bond to link the decaborane with the lipophilic
Md Kawser Ahmed et al.
Environmental science and pollution research international, 22(20), 15880-15890 (2015-06-06)
Although fish, crustacean, and shellfish are significant sources of protein, they are currently affected by rapid industrialization, resulting in increased concentrations of heavy metals. Accumulation of heavy metals (V, Cr, Mn, Ni, Cu, Zn, As, Se, Mo, Ag, Cd, Sb
Rui Xing et al.
Biomedical materials (Bristol, England), 10(5), 055003-055003 (2015-09-12)
Biofilm formation on dental abutment may lead to peri-implant mucositis and subsequent peri-implantitis. These cases are clinically treated with antibiotics such as doxycycline (Doxy). Here we used an electrochemical method of cathodic polarization to coat Doxy onto the outer surface
Dengwu Zhao et al.
Scientific reports, 5, 17276-17276 (2015-11-27)
This report investigates the enhancement of localized evaporation via separated light absorbing particles (plasmonic absorbers) and scattering particles (polystyrene nanoparticles). Evaporation has been considered as one of the most important phase-change processes in modern industries. To improve the efficiency of
Md Saiful Islam et al.
Ecotoxicology and environmental safety, 122, 462-469 (2015-09-26)
Seven food items, namely, meat, egg, fish, milk, vegetables, cereals and fruits were collected from Bogra district, Bangladesh to evaluate the levels of heavy metal and associated health risk to the adults and children. The samples were analyzed for the
Alex C S Shek et al.
Archives of environmental contamination and toxicology, 68(4), 622-635 (2015-01-13)
This study aimed to determine the effects of salinity on metal uptake and metallothionein (MT) mRNA levels in tilapia exposed to three metal ions. Male Oreochromis niloticus × O. aureus juveniles (hereafter, "tilapia") were exposed to various concentrations (100, 500
Tiago H Ferreira et al.
International journal of pharmaceutics, 481(1-2), 56-63 (2015-02-01)
Boron nitride nanotubes (BNNTs) have generated considerable interest among the scientific community because of their unique physical and chemical properties. They present good chemical inertness, high thermal stability, and optimal resistance to oxidation, that make them ideal candidates for biomedical
Michael J Salini et al.
The British journal of nutrition, 114(11), 1784-1796 (2015-09-29)
Barramundi (Lates calcarifer), a catadromous teleost of significant and growing commercial importance, are reported to have limited fatty acid bioconversion capability and therefore require preformed long-chain PUFA (LC-PUFA) as dietary essential fatty acid (EFA). In this study, the response of
Urszula Doboszewska et al.
Progress in neuro-psychopharmacology & biological psychiatry, 56, 254-263 (2014-10-08)
Data indicated that zinc deficiency may contribute to the development of depression; however changes induced by zinc deficiency are not fully described. In the present paper we tested whether the dietary zinc restriction in rats causes alterations in N-methyl-D-aspartate receptor
Franciele Rovasi Adolfo et al.
Talanta, 147, 241-245 (2015-11-26)
Nickel and cobalt were simultaneously assayed in vitamin B12 formulations by using atomic spectrometry. The proposed method is based on a compromise between the proximity of specific Ni and Co spectral lines and the relative abundances of the analytes in
Nteseng O Ramoraswi et al.
Nanoscale research letters, 10(1), 427-427 (2015-11-01)
Mesoporous silica, specifically SBA-15, acid-treated multi-walled carbon nanotubes and a hybrid nanocomposite of SBA-15 coated onto the sidewalls acid-treated multi-walled carbon nanotubes (CNTs) were prepared and used as supports for anatase TiO2. Sol-gel methods were adapted for the synthesis of
Jinjin Wu et al.
Environmental research, 138, 67-73 (2015-02-24)
Silver nanoparticles (Ag-NPs) are among the most commonly used nanomaterials and may be exposed to human and ecosystem. Prior in vitro study showed that Ag-NPs compromised neurodevelopment of PC12 cells. This study aims to investigate the effect of prenatal exposure
Taro Masuda et al.
Bioscience, biotechnology, and biochemistry, 79(1), 74-81 (2014-10-16)
Iron is one of the essential trace elements for humans. In this study, the iron contents in fresh, dried, and toasted nori (Pyropia yezoensis) were analyzed. The mean iron content of fresh, dried, and toasted nori were 19.0, 22.6, and
Md Shofikul Islam et al.
Environmental health : a global access science source, 14, 92-92 (2015-12-08)
Cardiovascular diseases (CVDs) and cancers are the major causes of chronic arsenic exposure-related morbidity and mortality. Matrix metalloproteinase-2 (MMP-2) and -9 (MMP-9) are deeply involved in the pathogenesis of CVDs and cancers. This study has been designed to evaluate the
James F Staff et al.
Toxicology letters, 231(2), 270-276 (2014-09-28)
Whole blood is the established matrix for biological monitoring of inorganic lead; however blood sampling is an invasive procedure. Saliva offers a potential non-invasive alternative. This study determines lead in whole blood and saliva. A novel method for saliva sampling
Pamela Spanopoulos-Zarco et al.
Environmental monitoring and assessment, 187(11), 700-700 (2015-10-27)
With the aim of determining arsenic (As) and selenium (Se) concentrations in bycatch fishes from SW Mexico and comparing elemental concentrations with limits for human consumption set in the national and international legislation, three fish species (Diapterus peruvianus, Pseudupeneus grandisquamis
Daniele Barbaro et al.
PloS one, 10(4), e0123159-e0123159 (2015-04-16)
Iron oxide nanoparticles (IONP) can have a variety of biomedical applications due to their visualization properties through Magnetic Resonance Imaging (MRI) and heating with radio frequency or alternating magnetic fields. In the oncological field, coating IONP with organic compounds to
Verena M Ahrens et al.
ChemMedChem, 10(1), 164-172 (2014-10-24)
Peptidic ligands selectively targeting distinct G protein-coupled receptors that are highly expressed in tumor tissue represent a promising approach in drug delivery. Receptor-preferring analogues of neuropeptide Y (NPY) bind and activate the human Y1 receptor subtype (hY1 receptor), which is
Rashmi R Nair et al.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry, 20(2), 311-322 (2014-12-10)
The activity of sulfate-reducing bacteria (SRB) intensifies the problems associated to corrosion of metals and the solution entails significant economic costs. Although molybdate can be used to control the negative effects of these organisms, the mechanisms triggered in the cells
Margherita Cozzari et al.
Environmental pollution (Barking, Essex : 1987), 198, 32-40 (2015-01-01)
The impact of Ag NPs on sediment-dwelling organisms has received relatively little attention, particularly in linking bioaccumulation to oxidative injury. The polychaete Nereis diversicolor was exposed to sediments spiked with dissolved Ag (added as AgNO3), Ag NPs (63 ± 27
Christopher Schmidt et al.
Journal of bacteriology, 196(19), 3461-3471 (2014-07-23)
The zinc importer ZupT is required for the efficient allocation of zinc to zinc-dependent proteins in the metal-resistant bacterium Cupriavidus metallidurans but not for zinc import per se. The expression of zupT is upregulated under conditions of zinc starvation. C.
Anu Lipsanen et al.
Neuroscience letters, 580, 173-177 (2014-08-16)
Remote areas connected to cortical infarcts, such as the thalamus, are affected by stroke due to delayed retrograde degeneration of afferent connections. This is temporally associated with the accumulation of β-amyloid (Aβ) and calcium. Here we tested a hypothesis that
Joel Garner et al.
Journal of environmental radioactivity, 150, 49-56 (2015-08-16)
Naturally occurring radioactive material (NORM) is a common feature in North Sea oil and gas production offshore but, to date, has been reported from only one production site onshore in the United Kingdom. The latter, Wytch Farm on the Dorset
M A García-Sevillano et al.
Chemico-biological interactions, 229, 82-90 (2015-02-11)
Antagonistic interactions between mercury (Hg) and selenium (Se), were evaluated in mouse (Mus musculus), as a mammalian model, in a series of controlled exposure experiments. The beneficial effect of Se against Hg toxicity involves a variety of biochemical and toxicological
Scott Faber et al.
BMC complementary and alternative medicine, 15, 71-71 (2015-04-19)
An emerging paradigm suggests children with autism display a unique pattern of environmental, genetic, and epigenetic triggers that make them susceptible to developing dysfunctional heavy metal and chemical detoxification systems. These abnormalities could be caused by alterations in the methylation
Daniel E Morrison et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 20(50), 16602-16612 (2014-10-18)
A structure-activity relationship study of a library of novel bifunctional Gd(III) complexes covalently linked to arylphosphonium cations is reported. Such complexes have been designed for potential application in binary cancer therapies such as neutron capture therapy and photon activation therapy.
Raffaela Biesuz et al.
The Analyst, 139(16), 3932-3939 (2014-06-27)
The synthesis and the physico-chemical characterisation of a novel solid phase, designed for iron(iii) sorption, are presented. The solid (indicated in the following as DFO-SAMMS) is made with a hydroxamate siderophore, the deferoxamine (DFO), covalently bound on a self-assembled monolayer
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