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Browsing Department of Chemistry - Faculty Publications by Title

Now showing items 189-208 of 244

Scaling and crossover dynamics in the hyperbolic reaction-diffusion equations of initially separated components

Abi Mansour A.; Al Ghoul M. (COLLEGE PKONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA, 2011)

In this paper we investigate the dynamics of front propagation in the family of reactions (nA+mB→kC) with initially segregated reactants in one dimension using hyperbolic reaction-diffusion equations with the mean-field ...
Selective photodynamic therapy by targeted verteporfin delivery to experimental choroidal neovascularization mediated by a homing peptide to vascular endothelial growth factor receptor-2

Renno R.Z.; Terada Y.; Haddadin M.J.; Michaud N.A.; Gragoudas E.S.; Miller J.W. (CHICAGO515 N STATE ST, CHICAGO, IL 60610 USA, 2004)

Objective: To evaluate the feasibility, efficacy, and selectivity of photodynamic therapy (PDT) using targeted delivery of verteporfin to choroidal neovascularization (CNV) in the rat laser-injury model of CNV. Methods: ...
Sensing of H2O2 at low surface density assemblies of Pt nanoparticles in polyelectrolyte

Karam P.; Halaoui L.I. (WASHINGTON1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2008)

Amperometric detection of H2O2 was studied at random arrays of 2.5 nm polyacrylate-capped Pt nanoparticles (NP) assembled in poly(diallydimethylammonium chloride), PDDA, as a function of NP surface coverage. The arrays ...
Single molecule studies in chemical biology and nanosciences

Patra D. (, 2008)

Modern ultra-sensitive instrumental skill and expertise on surface modification of single biological molecules have sharpened the capabilities of scientists to address important current problems and explore new frontiers ...
Solid-state photochemical and photomechanical properties of molecular crystal nanorods composed of anthracene ester derivatives

Zhu L.; Agarwal A.; Lai J.; Al-Kaysi R.O.; Tham F.S.; Ghaddar T.; Mueller L.; Bardeen C.J. (CAMBRIDGETHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND, 2011)

A series of 9-anthroate esters that can form photoresponsive molecular crystal nanorods is prepared and their properties are investigated. All crystal structures that can support a [4 + 4] photodimerization reaction lead ...
Solvent effect on the absorption and fluorescence emission spectra of some purine derivatives: Spectrofluorometric quantitative studies

Hammud H.H.; Bouhadir K.H.; Masoud M.S.; Ghannoum A.M.; Assi S.A. (NEW YORK233 SPRING ST, NEW YORK, NY 10013 USA, 2008)

The absorption and emission spectra of six purine derivatives: adenine (I), N(9)-hydroxyethyladenine (II), N(6)-acetyladenine (III), N(6)-isobutyryladenine (IV), guanine (V), and N(2),N(9)-diacetylguanine (VI) have been ...
Stress-induced changes to the triple-point phase boundary of the niobium-deuterium system

Bulak J.; Jimenez G.; Millette N.; Rebeiz K.; Craft A. (MATERIALS PARKSUBSCRIPTIONS SPECIALIST CUSTOMER SERVICE, MATERIALS PARK, OH 44073-0002 USA, 2007)

The effects of mechanical stress, due to cold rolling, on the triple-point phase equilibrium in the niobium-deuterium system have been investigated using differential scanning calorimetry. Both unstressed and stressed foil ...
Structural, thermo-optical, and photophysical properties of highly oriented thin films of quinoxalinophenanthrophenazine derivative

Makowski T.; Moustafa R.M.; Uznanski P.; Zajaczkowski W.; Pisula W.; Tracz A.; Kaafarani B.R. (American Chemical Society; WASHINGTON1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2014)

The structural, thermo-optical, and anisotropic photophysical properties of highly oriented thin solid films of 2,11-bis(1,1-dimethylethyl)-6,7,15,16- tetrakis(dodecyloxy)quinoxalino[2′,3′:9,10]phenanthro[4,5-abc] phenazine ...
Structure-function relationships in dyes for solar energy conversion: a two-atom change in dye structure and the mechanism for its effect on cell voltage

O'Regan B.C.; Walley K.; Juozapavicius M.; Anderson A.; Matar F.; Ghaddar T.; Zakeeruddin S.M.; Klein C.; Durrant J.R. (WASHINGTON1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2009)

Recombination between injected electrons and iodine limits the photovoltage in dye-sensitized solar cells (DSSCs). We have recently suggested that many new dye molecules, intended to improve DSSCs, can accelerate this ...
Study on effect of lipophilic curcumin on sub-domain IIA site of human serum albumin during unfolded and refolded states: A synchronous fluorescence spectroscopic study

Patra D.; Barakat C.; Tafech R.M. (AMSTERDAMPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2012)

Curcumin having pharmaceutical application as anti-oxidant, anti-inflammatory and anti-carcinogenic drug necessitates studying interaction of this molecule with native, unfolded and refolded state of human serum albumin ...
Study on interaction of bile salts with curcumin and curcumin embedded in dipalmitoyl-sn-glycero-3-phosphocholine liposome

Patra D.; Ahmadieh D.; Aridi R. (AMSTERDAMPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2013)

Curcumin, often used as a food spice, is a natural polyphenol that has various medicinal benefits such as anti-cancer, anti-amyloid, anti-oxidant, and anti-inflammatory properties, among others. The interaction between ...
Submicrometric iron particles for the removal of pharmaceuticals from water: Application to b-lactam antibiotics

Ghauch A.; Baydoun H.; Tuqan A.M.; Ayoub G.; Naim S. (STAFA-ZURICHLAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND, 2011)

Sub-micrometric iron particles (Fe0) and amended Fe0 (Cu0Fe0) were tested for the aqueous removal of b-lactam antibiotics. Comparative batch experiments were performed separately on aqueous solutions of dicloxacillin (DCX), ...
Superdiffusive cusp-like waves in the mercuric iodide precipitate system and their transition to regular reaction bands

Ayass M.M.; Al-Ghoul M. (American Chemical Society; WASHINGTON1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2014)

We report a two-dimensional (2D) reaction-diffusion system that exhibits a superdiffusive propagating wave with anomalous cusp-like contours. This wave results from a leading precipitation reaction (wavefront) and a trailing ...
Surface characterization by nitrogen adsorption of silica aerogels synthesized from various Si(OR)4 and R″Si(OR′) 3 precursors

Al-Oweini R.; El-Rassy H. (AMSTERDAMPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2010)

We report the surface characterization by nitrogen adsorption-desorption technique of organically surface-modified silica aerogels. These solids were prepared through a sol-gel process from various combinations of silicon ...
Symmetry aspects of H 2 splitting by five-coordinate d 6 ruthenium amides, and calculations on acetophenone hydrogenation, ruthenium alkoxide formation, and subsequent hydrogenolysis in a model trans -Ru(H) 2(diamine)(diphosphine) system

Hasanayn F.; Morris R.H. (WASHINGTON1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2012)

The potential energy surface (PES) of H 2 addition to the Ru=N bond of a model five-coordinate ruthenium amide (Ru=N), leading to an octahedral trans-Ru(H) 2(diamine)(diphosphine) (HRu-NH) and subsequent acetophenone ...
Synchronous fluorescence based biosensor for albumin determination by cooperative binding of fluorescence probe in a supra-biomolecular host-protein assembly

Patra D. (OXFORDOXFORD FULFILLMENT CENTRE THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND, 2010)

A synchronous fluorescence probe based biosensor for estimation of albumin with high sensitivity and selectivity was developed. Unlike conventional fluorescence emission or excitation spectral measurements, synchronous ...
Synchronous fluorescence spectroscopic study of solvatochromic curcumin dye

Patra D.; Barakat C. (OXFORDTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND, 2011)

Curcumin, the main yellow bioactive component of turmeric, has recently acquired attention by chemists due its wide range of potential biological applications as an antioxidant, an anti-inflammatory, and an anti-carcinogenic ...
Syntheses of 4-[(1H,3H)-pyrimidine-2,4-dion-1-yl]- and 4-[(1H,3H)-5- methylpyrimidine-2,4-dion-1-yl]-1,6-heptadienes

Bouhadir K.H.; Zhou J.-L.; Shevlin P.B. (PHILADELPHIA325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA, 2005)

Heptadienes containing nucleic bases are attractive building blocks for the synthesis of carbocyclic oligonucleotide analogs. Herein, we report an alternative synthetic route to 4-[(1H,3H)-pyrimidine-2,4-dion-1-yl]-1,6- ...
Synthesis and binding investigations of novel crown-ether derivatives of phenanthro[4,5- abc ]phenazine and quinoxalino[2′,3′:9,10] phenanthro[4,5- abc ]phenazine

Jradi F.M.; El-Ballouli A.O.; Al-Sayah M.H.; Kaafarani B.R. (ABINGDON4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND, 2014)

The synthesis and binding investigation of novel crown-ether derivatives of phenanthro[4,5-abc]phenazine and quinoxalino[2′,3′:9,10] phenanthro[4,5-abc]phenazine sensors are reported. The binding studies of these sensors ...
Synthesis and characterization by FTIR spectroscopy of silica aerogels prepared using several Si(OR)4 and R′′Si(OR′)3 precursors

Al-Oweini R.; El-Rassy H. (AMSTERDAMPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2009)

We report the synthesis and Fourier Transform Infrared spectroscopy characterization results dealing with the surface modification of silica aerogels obtained via a two-step sol-gel process where various silicon precursors ...

Now showing items 189-208 of 244

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Browsing Department of Chemistry - Faculty Publications by Title

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