Browsing Chemistry & Earth Sciences by Title
Now showing items 315-334 of 560
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Microwave-assisted palladium-catalyzed cross-coupling reactions: Generation of carbon-carbon bond
( MDPI , 2020 , Article Review)Cross-coupling reactions furnishing carbon–carbon (C–C) bond is one of the most challenging tasks in organic syntheses. The early developed reaction protocols by Negishi, Heck, Kumada, Sonogashira, Stille, Suzuki, and ... -
Microwave-Assisted Solvothermal Synthesis of Mo-Doped TiO2 with Exceptional Textural Properties and Superior Adsorption Kinetics
( MDPI , 2022 , Article)Assigned to their outstanding physicochemical properties, TiO2-based materials have been studied in various applications. Herein, TiO2 doped with different Mo contents (Mo-TiO2) was synthesized via a microwave-assisted ... -
Mineralization of Riluzole by Heterogeneous Fenton Oxidation Using Natural Iron Catalysts
( MDPI , 2022 , Article)Fenton (H2O2/Fe2+) system is a simple and efficient advanced oxidation technology (AOT) for the treatment of organic micropollutants in water and soil. However, it suffers from some drawbacks including high amount of the ... -
Mishandling and exposure of farm workers in Qatar to organophosphate pesticides
( Elsevier Inc. , 2014 , Article)We used a combination of subjective (questionnaire) and objective (urinary metabolites) measurements to evaluate factors that can predict the exposure of farm workers in Qatar to organophosphate pesticides and to assess ... -
Mixed Metal Difluorides as High Capacity Conversion-Type Cathodes: Impact of Composition on Stability and Performance
( Wiley-VCH Verlag , 2018 , Article)With the most recent development of ultrahigh capacity anodes, such as Li- or Si-based anodes, metal fluorides hold promise as complementary high-capacity conversion cathode materials for next-generation energy storage ... -
MLIP causes recessive myopathy with rhabdomyolysis, myalgia and baseline elevated serum creatine kinase
( Oxford University Press , 2021 , Article)Striated muscle needs to maintain cellular homeostasis in adaptation to increases in physiological and metabolic demands. Failure to do so can result in rhabdomyolysis. The identification of novel genetic conditions ... -
Modern Development in Copper- and Nickel-Catalyzed Cross-Coupling Reactions: Formation of Carbon-Carbon and Carbon-Heteroatom bonds under Microwave Irradiation Conditions
( John Wiley & Sons, Ltd , 2022 , Article Review)The use of transition metals in cross-coupling reactions has been verified as a powerful tool in synthetic organic chemistry to access valuable pharmaceutical intermediates and functional organic molecules. Copper compounds ... -
Molecular Design of Novel Chemicals for Iron Sulfide Scale Removal
( Hindawi Limited , 2021 , Article)Scale deposition is a pertinent challenge in the oil and gas industry. Scales formed from iron sulfide are one of the troublous scales, particularly pyrite. Moreover, the use of biodegradable environmentally friendly ... -
Muscle enriched lamin interacting protein (Mlip) binds chromatin and is required for myoblast differentiation
( MDPI , 2021 , Article)Muscle‐enriched A‐type lamin‐interacting protein (Mlip) is a recently discovered Amniota gene that encodes proteins of unknown biological function. Here we report Mlip’s direct interaction with chromatin, and it may function ... -
MXene-based aptasensors: Advances, challenges, and prospects
( Elsevier , 2022 , Article)The combination of 2D MXenes with high affinity aptamers has resulted in the development of innovative aptasensing approaches for food/water safety and clinical diagnosis. Aptamers have quite a number of benefits over ... -
Nanostructures Formed by Custom-Made Peptides Based on Amyloid Peptide Sequences and Their Inhibition by 2-Hydroxynaphthoquinone
( Frontiers Media S.A. , 2020 , Article)Extensive research on amyloid fibril formations shows that certain core sequences within Aβ peptide play an important role in their formation. It is impossible to track these events in vivo. Many proteins and peptides with ... -
Natural clay-supported palladium catalysts for methane oxidation reaction: Effect of alloying
( Royal Society of Chemistry , 2019 , Article)The catalytic combustion of methane (CCM) has been extensively studied owing to the wide use of methane in motor vehicles and power generation turbines. However, the absence of polarizability and the high C-H bond strength ... -
Natural Dyes in Cyanide and Anion Sensing
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Cyanide is one of anions of concern due to its high toxicity. It causes death at a low dosage (2.6 mM) and the allowable level should be lower than 1.9 mmolar according to World health Organization (WHO). Cyanide contamination ... -
The nature and kinetics of the adsorption of dibenzothiophene in model diesel fuel on carbonaceous materials loaded with aluminum oxide particles
( Elsevier B.V. , 2019 , Article)The resulted environmental and industrial problems from presence of sulfur compounds such as dibenzothiophene (DBT) in some fuel led to attract greater interest in research on the removal of these compounds. In this study ... -
Near infrared plasmonic sensor based on Fano resonance
( SPIE , 2016 , Conference Paper)We introduce a compact plasmonic resonator that is capable of generating a Fano resonance in the transmission spectrum. The Fano resonance is observed with its unique lineshape. The proposed design is simple, compact, easy ... -
A new depositional model and sequence stratigraphic interpretation for the upper Jurassic Arab "D" reservoir in Qatar
( Wiley online Library , 2001 , Article)Deposition of the Arab Formation on the Arabian Plate followed a eustatic sea-level high during the Oxfordian that deposited the open-marine shelfal carbonates of the Hanifa and Jubaila Formations. Oolite/peloidal shoals ... -
New tetradentate Schiff base Cu(II) complexes: synthesis, physicochemical, chromotropism, fluorescence, thermal, and selective catalytic oxidation
( Springer , 2021 , Article)Three neutral Cu(II)/ƞ4-NNNO Schiff base complexes (1-3) were prepared from the (E)-4-nitro-2-(((2-(piperazin-1-yl)ethyl)imino)methyl)phenol, tetradentate Schiff base (SB) ligand, and the corresponding copper(II) salts. ... -
Nitrate removal from water using UV-M/S2O42- advanced reduction process
( Springer , 2013 , Article)In this work, a new process called advanced reduction process (ARP) was used for nitrate removal from water. This ARP process combines sodium dithionite as reducing agent with ultraviolet irradiation using medium pressure ... -
Nitron tetrachloroaurate(III) electrodes with poly(vinyl chloride) and liquid membranes for the selective determination of gold
( Elsevier , 1991 , Article)PVC matrix and liquid membrane electrodes have been developed for direct potentiometric determination of gold(III). The membranes incorporate nitron tetrachloroaurate(III) as electroactive material. Fast response for ... -
Nonheme Fe(IV) Oxo Complexes of Two New Pentadentate Ligands and Their Hydrogen-Atom and Oxygen-Atom Transfer Reactions
( American Chemical Society (ACS) , 2015 , Article)Two new pentadentate {N5} donor ligands based on the N4Py (N4Py = N,N-bis(2-pyridylmethyl)-N-bis(2-pyridyl)methylamine) framework have been synthesized, viz. [N-(1-methyl-2-benzimidazolyl)methyl-N-(2-pyridyl)methyl-N-(bi ...