Browsing Chemistry & Earth Sciences by Title
Now showing items 307-326 of 560
-
Mechanochemical Transformation of CF3 Group: Synthesis of Amides and Schiff Bases
( Wiley , 2021 , Article)We communicate two mild, solvent-free mechanochemical coupling transformations of CF3 group with nitro compounds into amides or Schiff bases employing Ytterbia as a catalyst. This process proceeds via C−F bond activation, ... -
Mercurimetric potentiometric determination of barbiturates using a solid-state iodide ion-selective electrode
( Taylor and Francis Inc. , 1997 , Article)A simple potentiometric method is described for mercurimetric titration of barbiturates using a solid-state iodide ion-selective electrode. The optimum titration conditions involve the use of a borate buffer of pH 9-10 as ... -
Mercury pollution in doha (Qatar) coastal environment
( Wiley Periodicals, Inc. , 1994 , Article)Surface water and sediment samples were collected from the Doha coastal area and analyzed for content of physico-chemical forms of mercury. Dissolved reactive Hg (2.9 ng L?1) represented 81.0% of the total dissolved Hg ... -
Metal complex as p-type dopant-based organic spiro-OMeTAD hole-transporting material for free-Li-TFSI perovskite solar cells
( American Institute of Physics , 2024 , Article)Lithium bis(fluorosulfonyl)imide (Li-TFSI) is an efficient p-dopant that has been used to enhance the conductivity of perovskite solar cells (PSCs). However, the performance of the corresponding devices is still not ... -
Metathesis ring opening polymerization of 5,6-dimethylenebicyclo[2.2.1]hept-2-ene
( John Wiley & Sons, Ltd , 1992 , Article)5,6-Dimethylenebicyclo[2.2.1]hept-2-ene (I) polymerizes in the presence of the two-component ring opening metathesis polymerization (ROMP) initiators WCl6/(CH3)4Sn and MoCl5/(CH3)4Sn. The product polymers were insoluble ... -
Microfluidic devices with modified electrochemical detection for biomarkers analysis: A review
( Nova Science Publishers, Inc. , 2014 , Book chapter)Integrated microfluidic systems continue to garner a great deal of attention. This interest can be attributed to the advantages that these microsystems exhibit over conventional separation and detection systems while ... -
MicroRNA205: A Key Regulator of Cardiomyocyte Transition from Proliferative to Hypertrophic Growth in the Neonatal Heart
( Multidisciplinary Digital Publishing Institute (MDPI) , 2024 , Article)The mammalian myocardium grows rapidly during early development due to cardiomyocyte proliferation, which later transitions to cell hypertrophy to sustain the heart’s postnatal growth. Although this cell transition in the ... -
Microstructure and mechanical behavior of hot extruded aluminum/tin-bismuth composites produced by powder metallurgy
( MDPI AG , 2020 , Article)In this study, Al-BiSn composites were synthesized by a combination of microwave sintering and hot extrusion processes. The structural, morphological, mechanical, and thermal properties were investigated to elucidate the ... -
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 ...