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Nayara Cristina Perez de Albuquerque et al.
Journal of pharmaceutical and biomedical analysis, 109, 192-201 (2015-03-18)
Zopiclone (ZO) is a chiral drug that undergoes extensive metabolism to N-desmethylzopiclone (N-Des-ZO) and zopiclone-N-oxide (N-Ox-ZO). Pharmacological studies have shown (S)-N-Des-ZO metabolite presents anxiolytic activity and a patent for this metabolite was requested for anxiety treatment and related disorders. In
Bahram Ebrahimi et al.
Journal of AOAC International, 98(3), 822-827 (2015-06-19)
A sensitive and low cost SPE method for the extraction, preconcentration, and flame atomic absorption spectrometric determination of nickel at ng/mL levels is described. Parameters governing the extraction efficiency including pH of the solution, eluent type, sample volume, and matrix
Abdoulaye Thiam et al.
Water research, 81, 178-187 (2015-06-10)
The degradation of 130 mL of mixtures of food azo dyes E122, E124 and E129 has been studied by electro-Fenton (EF) and UVA photoelectro-Fenton (PEF) using a stirred tank reactor with either a boron-doped diamond (BDD) or Pt anode and an
Nagappanpillai Adarsh et al.
Analytical chemistry, 86(18), 9335-9342 (2014-08-26)
With an objective to develop optical probes for biologically important anions and neutral molecules, we synthesized three novel NIR absorbing aza-BODIPY derivatives, 3a-3c, and have systematically tuned their photophysical properties by changing the peripheral substitution. A profound red-shift was observed
C De Bleye et al.
Analytica chimica acta, 888, 118-125 (2015-09-01)
Bisphenol A (BPA) is well known for its use in plastic manufacture and thermal paper production despite its risk of health toxicity as an endocrine disruptor in humans. Since the publication of new legislation regarding the use of BPA, manufacturers
Thierry Métayé et al.
Journal of nuclear medicine technology, 40(3), 187-193 (2012-08-09)
A high radiochemical purity (RCP) is recommended for radiopharmaceutical compounds used in the clinical practice of nuclear medicine. However, some preparations of (99m)Tc-sestamibi contain excess impurities (>6%). To understand the origin of these impurities, we investigated the effect of sodium
Quanping Wu et al.
Water science and technology : a journal of the International Association on Water Pollution Research, 66(4), 843-849 (2012-07-07)
A new bifunctionalized TiO(2) film containing a dye-sensitized region and a degradation region was described. A similar structure of dye-sensitized solar cell (DSSC) was fabricated in the dye-sensitized region to accomplish separation of electrons from positive charges, and separation of
Filip J Larsen et al.
The American journal of clinical nutrition, 99(4), 843-850 (2014-02-07)
Nitrate, which is an inorganic anion abundant in vegetables, increases the efficiency of isolated human mitochondria. Such an effect might be reflected in changes in the resting metabolic rate (RMR) and formation of reactive oxygen species. The bioactivation of nitrate
Bruno Gabriel Lucca et al.
Electrophoresis, 36(16), 1886-1893 (2015-04-18)
This report describes the development and application of a novel graphene-modified electrode to be used as amperometric sensor in microchip electrophoresis (ME) devices. The modified electrode was achieved based on electroreduction of graphene oxide on an integrated Pt working electrode
Arseto Y Bagastyo et al.
Water research, 47(1), 242-250 (2012-11-10)
Reverse osmosis concentrate from wastewater reclamation contains biorefractory trace organic contaminants that may pose environmental or health hazard. Due to its high conductivity, electrochemical oxidation of brine requires low voltage which is energetically favourable. However, the presence of chloride ions
Kai-Chih Hsu et al.
Nanoscale research letters, 9(1), 484-484 (2014-09-27)
A nanocomposite of silver nanoparticles and reduced graphene oxide (Ag/rGO) has been developed as a catalyst for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) with sodium borohydride, owing to the larger specific surface area and synergistic effect of rGO.
Javad Tashkhourian et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 152, 119-125 (2015-07-24)
A rapid, simple and inexpensive spectrofluorimetric sensor for determination of doxycycline based on its interaction with thioglycolic acid-capped cadmium telluride quantum dots (TGA/CdTe QDs) has been developed. Under the optimum experimental conditions, the sensor exhibited a fast response time of
Chenglu Liu et al.
Journal of nanoscience and nanotechnology, 12(1), 151-158 (2012-04-25)
Eu3+ and Dy(3+)-doped YVO4 nanocrystallites were successfully prepared at 400 degrees C in equal moles of NaNO3 and KNO3 molten salts. X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, transmission electronic microscopy (TEM), photoluminescence (PL) spectrum and lifetime were used
Rukhsana Gul et al.
European journal of medicinal chemistry, 85, 438-449 (2014-08-12)
Some novel ferrocenyl guanidines 1-8 were synthesized and characterized by different spectroscopic methods, elemental analysis and single crystal X-rays diffraction techniques. The crystallographic studies revealed that the existence of the strong non-bonding interactions facilitate these molecules to interact with biological
Ariadni C Loutsidou et al.
Acta biologica Hungarica, 63(4), 483-489 (2012-11-09)
The toxicity, in terms of changes in the DNA content, of two food preservatives, sodium nitrate and sodium benzoate was studied on the protozoan Tetrahymena pyriformis using DNA image analysis technology. For this purpose, selected doses of both food additives
Oluwasesan Adegoke et al.
Talanta, 146, 780-788 (2015-12-24)
Environmental pollutants, such as the polycyclic aromatic hydrocarbons (PAHs), become widely distributed in the environment after emission from a range of sources, and they have potential biological effects, including toxicity and carcinogenity. In this work, we have demonstrated the analytical
Ewelina Dziubakiewicz et al.
Colloids and surfaces. B, Biointerfaces, 104, 122-127 (2013-01-10)
Potentiometric titration and zeta potential measurements are crucial techniques for the characterization of the surface properties of bacterial cells. In this study, we investigated the effects of two commonly used electrolytes, NaNO(3) and NaClO(4), on the viability and acid-base properties
Zahida Taibi-Djennah et al.
International immunopharmacology, 27(1), 122-129 (2015-05-17)
Androctonus australis hector (Aah) venom and its neurotoxins may affect the neuro-endocrine immunological axis due to their binding to ionic channels of axonal membranes. This binding leads to the release of neurotransmitters and immunological mediators accompanied by pathophysiological effects. Although
Kamalpreet Kaur Gill et al.
Pesticide biochemistry and physiology, 123, 19-23 (2015-08-13)
The toxic effects of pesticides and minerals have been explored in different species, but still there is paucity of information regarding their combined toxicological effects. The present investigation reports oxidative stress induced by oral subacute exposure to fenvalerate (1 mg/kg) and
Zdeněk Sofer et al.
Nanoscale, 7(23), 10535-10543 (2015-05-28)
Graphane is one of the most intensively studied derivatives of graphene. Here we demonstrate the evaluation of exact degree of graphene hydrogenation using the Clemmensen reduction reaction and deuterium labeling. The Clemmensen reduction reaction is based on application of zinc
Mithilesh Yadav et al.
International journal of biological macromolecules, 79, 923-933 (2015-06-07)
The present work reports the successful preparation, thermal and mechanical characterization of high performance films of Na(+) montmorillonite (MMT)/graphene oxide (GO)/chitosan (CS) composite using simple solution mixing evaporation method. The formations of films were verified by Fourier transform infrared (FT-IR)
Jun-Ying Yu et al.
The journal of physical chemistry. B, 116(41), 12581-12589 (2012-09-26)
Ion association ratios as a function of concentration were estimated in single NaNO(3) droplets (5-60 μm) on a polytetrafluoroethylene (PTFE) substrate with molar water-to-solute ratios (WSRs) of 0.8-28 and bulk NaNO(3) solutions with WSRs of 35-200 by combining micro-Raman spectroscopy
Simone Porcelli et al.
Medicine and science in sports and exercise, 47(8), 1643-1651 (2014-11-21)
Dietary nitrate supplementation has been shown to reduce O2 cost of submaximal exercise, improve exercise tolerance, and enhance performance in moderately trained individuals. In contrast, data have been provided that elite athletes do not benefit from nitrate supplementation. The aim
Yu-Qiong Gao et al.
Environmental science and pollution research international, 22(11), 8693-8701 (2015-01-09)
UV irradiation-activated sodium persulfate (UV/PS) was studied to degrade florfenicol (FLO), a phenicol antibiotic commonly used in aquaculture, in water. Compared with UV/H2O2 process, UV/PS process achieves a higher FLO degradation efficiency, greater mineralization, and less cost. The quantum yield
Shyamal C Bir et al.
Diabetes, 63(1), 270-281 (2013-09-07)
Nitrite anion has been demonstrated to be a prodrug of nitric oxide (NO) with positive effects on tissue ischemia/reperfusion injury, cytoprotection, and vasodilation. However, effects of nitrite anion therapy for ischemic tissue vascular remodeling during diabetes remain unknown. We examined
Mohammad Behbahani et al.
Environmental monitoring and assessment, 186(11), 7245-7257 (2014-07-16)
We are introducing graphene oxide modified with amine groups as a new solid phase for extraction of heavy metal ions including cadmium(II), copper(II), nickel(II), zinc(II), and lead(II). Effects of pH value, flow rates, type, concentration, and volume of the eluent
Ines Hammami et al.
Immunobiology, 217(8), 808-815 (2012-06-05)
Major advances in dissecting mechanisms of NO-induced down-regulation of the anti-tumour specific T-cell function have been accomplished during the last decade. In this work, we studied the effects of a NO donor (AT38) on leukaemic Jurkat cell bioenergetics. Culturing Jurkat
Rajendiran Rajesh et al.
Physical chemistry chemical physics : PCCP, 17(17), 11329-11340 (2015-04-08)
Herein we report the covalent grafting of chitosan on graphene oxide (GO) followed by a simple approach for anchoring silver (AgNPs) and gold (AuNPs) nanoparticles onto a chitosan grafted graphene oxide surface by a NaBH4 reduction method. Catalytic activity of
Y A Attia et al.
Animal : an international journal of animal bioscience, 7(4), 591-601 (2012-11-28)
Forty-two New Zealand White male rabbits were housed individually in wire cages and randomly distributed among six experimental groups of seven rabbits each, during 16 to 61 weeks of age. There were three main nitrate groups: 0 (tap water), 350
Shuhei Nakane et al.
DNA repair, 11(11), 906-914 (2012-10-17)
Base excision repair (BER) is one of the most commonly used DNA repair pathways involved in genome stability. X-family DNA polymerases (PolXs) play critical roles in BER, especially in filling single-nucleotide gaps. In addition to a polymerase core domain, bacterial
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