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Now showing items 152-171 of 244

One-pot synthesis of 5H-indazolo-[3,2-b]benzo[d]-1,3-oxazine: Two efficient preparative methods

Solano D.M.; Butler J.D.; Haddadin M.J.; Kurth M.J.; Baucom K.D.; Faul M.M. (, 2010)

[No abstract available]
Oxidation of bisoprolol in heated persulfate-H 2O systems: Kinetics and products

Ghauch A.; Tuqan A.M. (LAUSANNEPO BOX 564, 1001 LAUSANNE, SWITZERLAND, 2012)

The oxidative removal of dissolved aqueous bisoprolol (BIS) fumarate, prescribed to treat hypertension, by thermally activated sodium persulfate (Na 2S 2O 8; SPS) was investigated in a phosphate buffer solution at pH 7.0 ...
Oxygen reduction at nanostructured electrodes assembled from polyacrylate-capped Pt nanoparticles in polyelectrolyte

Estephan Z.G.; Alawieh L.; Halaoui L.I. (WASHINGTON1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2007)

Oxygen reduction and related processes are studied at nanostructured Pt electrodes assembled from polyacrylate-capped Pt nanoparticles ((d) = 2.5 ± 0.6 nm) in poly(diallyldimethylammonium)chloride (PDDA) on indium tin oxide ...
Patterns with high rhythmicity levels in multicomponent Liesegang systems

Msharrafieh M.; Sultan R. (WEINHEIMPO BOX 10 11 61, D-69451 WEINHEIM, GERMANY, 2005)

Liesegang banding is the display of rhythmic strata of precipitate as co-precipitate ions interdiffuse in a gel medium. Complex periodic patterns as well as aperiodic structures could emerge, notably in systems where more ...
Phase transitions and structures of novel pyrenes potentially useful in photovoltaic applications

Leng S.; Wex B.; Chan L.H.; Graham M.J.; Jin S.; Jing A.J.; Jeong K.-U.; Van Horn R.M.; Sun B.; Zhu M.; Kaafarani B.R.; Cheng S.Z.D. (WASHINGTON1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2009)

A series of conjugated compounds, 6,7,15,16-tetrakis(alkylthio) quinoxalino[2',3':9,10]phenanthro[4,5-afe-cjphenazine (TQPP-[SCn]4) (n = 6, 8, 10, and 12), which display p-channel characteristics was synthesized. These ...
Photocrosslinked alginate hydrogels with tunable biodegradation rates and mechanical properties

Jeon O.; Bouhadir K.H.; Mansour J.M.; Alsberg E. (OXFORDTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND, 2009)

Photocrosslinked and biodegradable alginate hydrogels were engineered for biomedical applications. Photocrosslinkable alginate macromers were prepared by reacting sodium alginate and 2-aminoethyl methacrylate in the presence ...
Photocurrent generation in layer-by-layer assembled dendrimers with ruthenium tris-bipyridine peripheral groups and a viologen-like core

Saab M.A.; Abdel-Malak R.; Wishart J.F.; Ghaddar T.H. (WASHINGTON1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2007)

The photophysical and photoelectrochemical properties of first- and second-generation dendrimers with ruthenium tris-bipyridine peripheral groups and a tri-viologen like core (Ru 3V 3 and Ru 6V 3) were investigated in ...
Photoluminescent and electroluminescent properties and ultra-fast spectrometric studies of dihydroheptacenes

Mondal R.; Wex B.; Shah B.K.; Kaafarani B.R.; Danilov E.O.; Jabbour G.E.; Neckers D.C. (AMSTERDAMPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2008)

Photophysical and electrochemical properties of 7,16-dihydroheptacenes (1-3) were investigated in detail. Although their HOMO-LUMO gaps are higher than 3 eV, the organic light-emitting diodes containing 1 as the emitting ...
Photophysical properties of new cyclometalated ruthenium complexes and their use in dye sensitized solar cells

Kisserwan H.; Kamar A.; Shoker T.; Ghaddar T.H. (CAMBRIDGETHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND, 2012)

A new class of cyclometalated ruthenium complexes, Ru(CNN′) (NN′N′′)·Cl where NN′N′′ = 4,4′,4′′-tricarboxy-2,2′:6′,2′′- terpyridine and CNN′ = substituted 6-phenyl-2,2′-bipyridine, for Dye Sensitized Solar Cells (DSSCs) ...
Physicochemical, melissopalynological and antioxidant properties of artisanal honeys from Lebanon

Jaafar, K.; Haidar, J.; Kuraydiyyah, S.; Ghaddar, T.; Knio, K.; Ismail, B.; Toufeili, I. (Springer India, 2017)

Sixteen honeydew and 15 floral honeys from Lebanon were analyzed for pollen spectra and physicochemical parameters. A total of 37 families and 67 taxa were recorded with the honeybees producing honeydew honey exhibiting a ...
PIXE identification of fine and coarse particles of aerosol samples and their distribution across Beirut

Roumie M.; Saliba N.; Nsouli B.; Younes M.; Noun M.; Massoud R. (AMSTERDAMPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2011)

This study is the first national attempt to assess the levels of PMs in Beirut city and consequently understand air pollution distribution. Aerosol sampling was carried out using three PM10 and three PM2.5 samplers which ...
Poly(l-Lysine)-pyranine-3 coacervate mediated nanoparticle-assembly: Fabrication of dynamic pH-responsive containers

Amali A.J.; Singh S.; Rangaraj N.; Patra D.; Rana R.K. (CAMBRIDGETHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND, 2012)

Counter-ion condensation of Poly(l-Lysine) in the presence of pyranine-3 generates spherical coacervates, which then template the assembly of silica nanoparticles to form microcapsule structures that dynamically control ...
Polymorphic and morphological transformation during the transition from a propagating band to static bands in the nickel hydroxide-ammonia liesegang system

Al-Ghoul M.; Ammar M. (STAFA-ZURICHLAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND, 2011)

We present an experimental study of the Ni+2-Ni(OH) 2-NH3 reaction-diffusion system in a gel (agar). The system, which consists of a gel containing an inner electrolyte Ni+2 and a diffusing outer electrolyte (NH3-OH-), ...
Post-genomics nanotechnology is gaining momentum: Nanoproteomics and applications in life sciences

Kobeissy F.H.; Gulbakan B.; Alawieh A.; Karam P.; Zhang Z.; Guingab-Cagmat J.D.; Mondello S.; Tan W.; Anagli J.; Wang K. (NEW ROCHELLE140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA, 2014)

The post-genomics era has brought about new Omics biotechnologies, such as proteomics and metabolomics, as well as their novel applications to personal genomics and the quantified self. These advances are now also catalyzing ...
Preparation and photophysics of HPTS-based nanoparticle-assembled microcapsules

Patra D.; Amali A.J.; Rana R.K. (CAMBRIDGETHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND, 2009)

In this paper we introduce a methodology to encapsulate hydroxy pyrene trisulfonate (HPTS) inside the microcapsules and carry out spectroscopic and fluorescence lifetime studies of these encapsulated HPTS. The synthesis ...
Prioritizing the criteria for location of Innovation University-IIT across India

Patra D. (BANGALOREC V RAMAN AVENUE, SADASHIVANAGAR, P B #8005, BANGALORE 560 080, INDIA, 2010)

[No abstract available]
Profiles of Co (NH3)6 2 + and Ni (NH3)6 2 + complexes in two-cation Liesegang systems

Badr L.; Sultan R. (AMSTERDAMPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2008)

Liesegang patterns of Co(OH)2 and Ni(OH)2 seemingly migrate in space as time advances because of redissolution of the bands in excess NH4OH. The formation of the complexes Co (NH3)6 2 + and Ni (NH3)6 2 + drives the ...
Propagating fronts in thin tubes: Concentration, electric, and pH effects in a two-dimensional precipitation pulse system

Makki R.; Al-Ghoul M.; Sultan R. (WASHINGTON1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2009)

In this paper, we studied the dynamics of a CaCO3 precipitate deposition pulse in a thin, long tube connecting two reservoir sinks of coprecipitates. The pulse profile, as well as the time tc and distance xc of the first ...
Pulse-front propagation and interaction during the growth of CdS nanoparticles in a gel

Al-Ghoul M.; Ghaddar T.; Moukalled T. (WASHINGTON1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2009)

We studied the spatiotemporal dynamics of a new system consisting of sulfide ions (outer electrolyte) diffusing into an organic gel (gelatin) containing mercaptoethanol-capped cadmium ions (inner electrolyte). The product, ...
Purified Salograviolide A isolated from Centaurea ainetensis causes growth inhibition and apoptosis in neoplastic epidermal cells

Ghantous A.; Tayyoun A.A.; Lteif G.A.; Saliba N.A.; Gali-Muhtasib H.; El-Sabban M.; Darwiche N. (ATHENS1, S MERKOURI ST, EDITORIAL OFFICE,, ATHENS 116 35, GREECE, 2008)

Many of the best-selling anticancer drugs are plant-derived. We tested for the anticancer properties of extracts isolated from Centaurea ainetensis, a plant species endemic to Lebanon and which is often used in folk medicine. ...

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Browsing Department of Chemistry - Faculty Publications by Title

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