تصفح Chemistry & Earth Sciences حسب العنوان
السجلات المعروضة 333 -- 352 من 548
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Novel Ni-B/AlN nanocomposite coatings for oil and gas industry
( National Assoc. of Corrosion Engineers International , 2018 , Conference Paper)Corrosion is a major cause of materials and equipment failure in the oil and gas industry, and its prevention is crucial to ensure reliability of the assets. Towards, this goal, Ni-B/AlN nanocomposite coatings were synthesized ... -
Novel palladium(II) and platinum(II) complexes with a fluoropiperazinyl based ligand exhibiting high cytotoxicity and anticancer activity in vitro
( Hindawi Publishing Corporation , 2016 , Article)cis-Dichloro-palladium(II) and cis-dichloro-platinum(II) complexes (2, 4) of the general formula [M(N-N)Cl2] (M=Pd(II) and Pt(II), N-N= 1,2-diamino-4-fluoro-5-(4-methyl-1-piperazinyl) benzene, (DFMPB)) and the dicationic ... -
A novel platinum complex of the histone deacetylase inhibitor belinostat: Rational design, development and in vitro cytotoxicity
( Elsevier Inc. , 2013 , Article)The successful design and synthesis of a novel Pt complex of the histone deacteylase inhibitor belinostat are reported. Molecular modelling assisted in the identification of a suitable malonate derivative of belinostat(mal-p-Bel) ... -
Novel Polyepoxysuccinic Acid-Grafted Polyacrylamide as a Green Corrosion Inhibitor for Carbon Steel in Acidic Solution.
( American Chemical Society , 2023 , Article)Utilizing green corrosion inhibitors has been classified among the most efficient and economical mitigation practices against metallic degradation and failure. This study aims to integrate the features of green and ... -
Novel potentiometric copper (II) selective membrane sensors based on cyclic tetrapeptide derivatives as neutral ionophores
( Elsevier , 2005 , Article)Two novel membrane sensors sensitive and reasonably selective for Cu2+ ions are described. These are based on the use of newly synthesized cyclic tetrapeptide derivatives as neutral ionophores and sodium tetraphenylborate ... -
Novel thorium membrane sensors with anionic response based on trioctylphosphine oxide and toluate ionophores
( Wiley-VCH Verlag , 2008 , Article)Two novel potentiometric polymeric membrane sensors for rapid and accurate determination of thorium are described. These are based on the use of trioctylphosphine oxide (TOPO) and thorium toluate (Th-TA) as ionophores ... -
On Chip Optical Modulator using Epsilon-Near-Zero Hybrid Plasmonic Platform
( Nature Publishing Group , 2019 , Article)In this work, we propose a micro-scale modulator architecture with compact size, low insertion loss, high extinction ratio, and low energy/bit while being compatible with the silicon-on-insulator (SOI) platform. This is ... -
On the encapsulation of Olsalazine by ?-cyclodextrin: A DFT-based computational and spectroscopic investigations
( Elsevier B.V. , 2019 , Article)In this work, the supramolecular host-guest interaction of the prodrug Olsalazine (OLZ) and β-Cyclodextrin (β-CD) was examined experimentally and computationally. Experimentally, employing the UV–Vis spectroscopic method ... -
On the molecular properties of graphene-pyrazines conjugated Ru and Fe complexes: Computational insights
( Elsevier , 2020 , Article)Graphene and related materials can exhibit substantial molecular properties of significant importance in various landscapes of interests including catalysis. On the other hand, transition-metal-based molecular heterogeneous ... -
On the nature of defect states in tungstate nanoflake arrays as promising photoanodes in solar fuel cells
( Royal Society of Chemistry , 2016 , Article)An electrochemical method is presented to study the nature of the defect states in sub-stoichiometric tungsten oxide nanoflake photoanodes used in water splitting. First, stoichiometric/sub-stoichiometric tungstate nanoflake ... -
One‐pot microwave‐assisted synthesis of water‐soluble pyran‐2,4,5‐triol glucose amine schiff base derivative: Xrd/hsa interactions, crystal structure, spectral, thermal and a DFT/TD‐DFT
( MDPI AG , 2021 , Article)The(3R,4R,6R)‐3‐(((E)‐2‐hydroxybenzylidene)amino)‐6‐(hydroxymethyl)tetrahydro‐2H-pyran‐2,4,5‐triol water‐soluble Glucose amine Schiff base (GASB‐1) product was made available by condensation of 2‐hydroxybenzaldehyde with ... -
Optical and electrical properties of a new polymer
( John Wiley & Sons, Inc. , 1997 , Article)Thin film of poly (5-isopropylidenecyclo-1,4-vinylene-2,3-dicarboxylicacidamide-s-methyl hydrazinecarbodithioate) (II) (Scheme 1) of 5 μm thickness was prepared. The dielectric properties of the prepared sample were studied ... -
Optical and electrical properties of porous silicon impregnated with congo red dye
( American Institute of Physics , 2013 , Article)Incorporation of molecules into porous silicon (PS) matrix is of particular interest for potential utilization in hybrid organic-semiconductor devices. In this study, the incorporation of Congo Red molecules inside luminescent ... -
Optical biosensor based on ultrathin SOI waveguides
( Optica Publishing Group (formerly OSA) , 2020 , Conference Paper)We introduce an optical biosensor utilizing the MMI configuration and based on the ultrathin SOI platform. The biosensor was optimized using finite difference time domain simulations. A sensitivity of 420 nm/RIU was achieved. -
Optical modulator based on silicon nanowires racetrack resonator
( SPIE , 2018 , Conference Paper)An optical modulator based on the racetrack resonator configuration is introduced.The structure of the resonator modulator is built from silicon nanowires on silica.The cladding and voids between the silicon nanowires are ... -
Optimization Of The Electronic And Optical Properties Of Tio2 For Clean Fuel Production
( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference Paper)Among different crystal structures and morphologies of TiO2, vertically oriented anatase nanotube arrays show the highest activity for solar energy conversion. However, the long-standing bottleneck is the fact that TiO2 ... -
Organoboronic acids/esters as effective drug and prodrug candidates in cancer treatments: challenge and hope
( Taylor and Francis Ltd. , 2023 , Article Review)Boronic acids/esters have recently emerged in the field of medicinal and pharmaceutical research due to their exceptional oxophilicity, low toxicity, and unique structure. They are known as potent enzyme inhibitors, cancer ... -
Oxidative degradation of tannic acid in aqueous solution by UV/S2O8 2- and UV/H2O2/Fe2+ processes: A comparative study
( MDPI AG , 2019 , Article)Tannic acid (TA) is a major pollutant present in the wastewater generated from vegetable tanneries process and food processing. This work studied TA degradation by two advanced oxidation processes (APOs): UV irradiation ... -
(−)-Paniculatol, a new ent-labdane bromoditerpene from Laurencia paniculata
( Elsevier Science Ltd. , 1997 , Article)(−)-Paniculatol, 1, an unusual tricyclic bromoditerpene belonging to the ent-labdane series has been identified in the red alga Laurencia paniculata collected on Qatari coasts, Arabian Gulf. The structure displays an unusual ...