Chemical sciences topic list of research papers
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Detection of explosives vapours on quartz crystal microbalances: generation of very low-concentrated vapours for sensors calibration
Abstract A controlled vapours generator of explosives compounds has been evaluated for delivering low-concentrated vapours in order to determine the threshold of quartz crystal microbalances based chemical gas sensors.
2009 / M. Guillemot, F. Dayber, P. Montméat, C. Barthet, P. Prené -
Synthesis and applications of heterobifunctional poly(ethylene oxide) oligomers
Abstract Poly(ethylene oxide) (PEO) oligomers are employed extensively in pharmaceutical and biomedical arenas mainly due to their excellent physical and biological properties, including solubility in water and organic solvents, lack of toxicity,...
2007 / M.S. Thompson, T.P. Vadala, M.L. Vadala, Y. Lin, J.S. Riffle -
Radical addition–fragmentation chemistry in polymer synthesis
Abstract This review traces the development of addition–fragmentation chain transfer agents and related ring-opening monomers highlighting recent innovation in these areas. The major part of this review deals with reagents that give reversible...
2007 / Graeme Moad, Ezio Rizzardo, San H. Thang -
Synthesis of some novel hydrazono acyclic nucleoside analogues2010 / Mohammad N Soltani Rad, Ali Khalafi-Nezhad, Somayeh Behrouz
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High performance liquid chromatographic determination of some guaiphenesin-containing cough-cold preparations
Abstract This paper presents different HPLC methods for the simultaneous determination of some guaiphenesin-containing cough-cold preparations. Three pharmaceutically available combinations were analyzed: salbutamol sulfate (SAL) and guaiphenesin...
2010 / Mohamed A. Korany, Ossama T. Fahmy, Hoda Mahgoub, Hadir M. Maher -
Effect of energy window width on planer and SPECT image uniformity
Abstract To detect radiopharmaceutical distribution in patient organs and avoid interpretation mistakes, due to the protocol errors, a gamma camera must work in optimum conditions. One such error is camera non-uniformity. Baron and Chouraqui[Baron,...
2009 / Mohamed Anwar K. Abdelhalim, Rizk Abdel-Moneim Rizk, Hamed I. Farag, Sameh Mustafa Reda -
Synthesis, characterization and effect of bis-1,3,4-oxadiazole rings containing glycine moiety on the activity of some transferase enzymes
Abstract We described herein the synthesis of bis-1,3,4-oxadiazole containing glycine moiety. N-{5-[5-(4-Methoxyphenyl)-1,3,4-oxadiazole-2-yl-sulfanyl]-1,3,4-oxadiazole-2-yl-methyl}-4-methoxybenzamide was fully characterized by elemental analysis,...
2010 / Ivan H.R. Tomi, Alaa H.J. Al-Qaisi, Zyad H.J. Al-Qaisi -
Effects of some commonly used Saudi folk herbal medications on the metabolic activity of CYP2C9 in human liver microsomes
Abstract Objective To investigate the potential effects of eleven of the most commonly used Saudi folk herbal medications on the metabolic activity of CYP2C9 in human liver microsomes. ...
2011 / Fahad I. Al-Jenoobi -
Organocatalytic Michael Addition of 1,3-Dicarbonyl Indane Compounds to Nitrostyrenes2010 / Zhen-Yu Jiang, Hua-Meng Yang, Ya-Dong Ju, Li Li, Meng-Xian Luo, et al.
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Characterization and assessment of Saudi clays raw material at different area
Abstract The general characteristics of three types of clays obtained from the different locations in Saudi Arabia have been investigated. These clays were compared with those of pure kaolin samples. Clays were analyzed by DTA, TGA, SEM, X-ray...
2010 / Q. Mohsen, A. El-maghraby -
MULTIVARIATE LINEAR QSPR/QSAR MODELS: RIGOROUS EVALUATION OF VARIABLE SELECTION FOR PLS
Abstract Basic chemometric methods for making empirical regression models for QSPR/QSAR are briefly described from a user's point of view. Emphasis is given to PLS regression, simple variable selection and a careful and cautious evaluation of the...
2013 / Kurt Varmuza, Peter Filzmoser, Matthias Dehmer -
Feasibility of optimizing trimetazidine dihydrochloride release from controlled porosity osmotic pump tablets of directly compressed cores
Abstract The aim of this study was to develop and optimize Trimetazidine dihydrochloride (TM) controlled porosity osmotic pump (CPOP) tablets of directly compressed cores. A 23 full factorial design was used to study the influence of three factors...
2013 / Basant A. Habib, Randa T. Abd El Rehim, Samia A. Nour -
Proteomic and metabolomic changes driven by elevating myocardial creatine suggest novel metabolic feedback mechanisms2016 / Sevasti Zervou, Xiaoke Yin, Adam A. Nabeebaccus, Brett A. O’Brien, Rebecca L. Cross, et al.
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Lead-sensitive membrane electrode based on chelating ion exchanger
Abstract A new selective membrane electrode for the measurement of lead activities is proposed. The preparation of active components of the membrane is described. The ready made electrode insert was used in which the PVC membrane was replaced by the ...
2010 / A.S. Alasier, S.A. Entisar, H.A. Elbishti -
Semiconductor Quantum Dots in Chemical Sensors and Biosensors2009 / Manuela F. Frasco, Nikos Chaniotakis
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Preparation, Characterization, and Properties of Polyurethane-Grafted Multiwalled Carbon Nanotubes and Derived Polyurethane Nanocomposites2011 / Tzong-Liu Wang, Chin-Chung Yu, Chien-Hsin Yang, Yeong-Tarng Shieh, Yu-Zen Tsai, et al.
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Preparation and Characterization of Nanozeolite NaA from Rice Husk at Room Temperature without Organic Additives2011 / Zahra Ghasemi, Habibollah Younesi
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NMR spectra of oligosaccharides at ultra-high field (900MHz) have better resolution than expected due to favourable molecular tumbling
Abstract Nuclear magnetic resonance (NMR) remains the most promising technique for acquiring atomic-resolution information in complex carbohydrates. Significant obstacles to the acquisition of such data are the poor chemical-shift dispersion and...
2006 / Charles D. Blundell, Michelle A.C. Reed, Michael Overduin, Andrew Almond -
Synthesis of a mitochondria-targeted spin trap using a novel Parham-type cyclization
Abstract A new cyclic nitrone spin trap, [4-(3′,3′-dibutyl-2′-oxy-3′H-isoindol-5′-yloxy)butyl]triphenylphosphonium bromide (MitoSpin), bearing a lipophilic cation has been prepared by a route that involves a novel Parham-type lithiation–cyclization...
2009 / Caroline Quin, Jan Trnka, Alison Hay, Michael P. Murphy, Richard C. Hartley -
On-site transient analysis for the corrosion assessment of reinforced concrete
Abstract A range of methods exist to assess the condition of steel reinforcement in concrete. The analysis of the transient response to a small perturbation has been employed successfully in laboratories to assess corrosion. This work examines a...
2012 / C. Christodoulou, C.I. Goodier, S.A. Austin, J. Webb, G. Glass