Browsing Faculty Contributions by Subject "chemistry"
Now showing items 1-20 of 20
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A robust fuzzy logic-based model for predicting the critical total drawdown in sand production in oil and gas wells
( Public Library of Science , 2021 , Article)Sand management is essential for enhancing the production in oil and gas reservoirs. The critical total drawdown (CTD) is used as a reliable indicator of the onset of sand production; hence, its accurate prediction is very ... -
Autonomous corrosion detection in gas pipelines: A hybrid-fuzzy classifier approach using ultrasonic nondestructive evaluation protocols
( IEEE , 2009 , Article)In this paper, a customized classifier is presented for the industry-practiced nondestructive evaluation (NDE) protocols using a hybrid-fuzzy inference system (FIS) to classify the corrosion and distinguish it from the ... -
Biomimetic trace metals improve bone regenerative properties of calcium phosphate bioceramics
( John Wiley and Sons Inc , 2021 , Article)The bone regenerative capacity of synthetic calcium phosphates (CaPs) can be enhanced through the enrichment with selected metal trace ions. However, defining the optimal elemental composition required for bone formation ... -
Date pits based nanomaterials for thermal insulation applications - Towards energy efficient buildings in Qatar
( Public Library of Science , 2021 , Article)Air-conditioning systems make the most significant part of energy consumption in the residential sector. There is no denying that it is essential to produce a comfortable indoor thermal environment for residents in a ... -
Design and synthesis of novel chalcones as potent selective monoamine oxidase-B inhibitors
( Elsevier Masson SAS , 2016 , Article)A novel series of substituted chalcones were designed and synthesized to be evaluated as selective human MAO-B inhibitors. A combination of either methylsulfonyl or trifluoromethyl substituents on the aromatic ketone moiety ... -
Flavonol-carbon nanostructure hybrid systems: A DFT study on the interaction mechanism and UV/Vis features
( Royal Society of Chemistry , 2016 , Article)Flavonols are a class of natural compounds with potential biological and pharmacological applications. They are also natural pigments responsible for the diversity of colors in plants. Flavonols offer the possibility of ... -
Freestanding eggshell membrane-based electrodes for high-performance supercapacitors and oxygen evolution reaction
( Royal Society of Chemistry , 2015 , Article)A type of freestanding, light-weight eggshell membrane-based electrode is demonstrated for supercapacitors and for oxygen evolution reaction (OER) catalysis. As a widely available daily waste, eggshell membranes have unique ... -
Fuzzy intervention in biological phenomena
( IEEE , 2012 , Article)An important objective of modeling biological phenomena is to develop therapeutic intervention strategies to move an undesirable state of a diseased network toward a more desirable one. Such transitions can be achieved by ... -
Glycoside-based niosomal nanocarrier for enhanced in-vivo performance of Cefixime
( Elsevier B.V. , 2016 , Article)This study aimed to evaluate the potential of a novel glycoside non-ionic surfactant synthesized and characterized in our laboratory for increased oral bioavailability of Cefixime. The surfactant was synthesized by simple ... -
Highly dispersed Pt nanoparticles on ultrasmall EMT zeolite: A peroxidase-mimic nanoenzyme for detection of H2O2 or glucose
( Elsevier Inc. , 2020 , Article)In past decade, Pt-based nanomaterials as peroxidase mimics have attracted much attention for H2O2 and glucose detection. However, easy aggregation of Pt nanoparticles (Pt NPs) greatly decreases their peroxidase-like ... -
Highly ordered nanoporous carbon films with tunable pore diameters and their excellent sensing properties
( Wiley-VCH Verlag , 2015 , Article)Ordered porous carbon films with tunable pore diameters, immobilized with glucose oxidase (GOD) have been fabricated and employed for the construction of a biosensor for glucose molecules. The as-prepared porous films have ... -
Instrumentation of Flow-Through USP IV Dissolution Apparatus to Assess Poorly Soluble Basic Drug Products: a Technical Note
( Springer New York LLC , 2016 , Article)Supersaturation and precipitation are common limitations encountered especially with poorly soluble basic drugs. The aims of this work were to explore the pattern of dissolution and precipitation of poorly soluble basic ... -
Isolation and Physicochemical Characterization of Laccase from Ganoderma lucidum-CDBT1 Isolated from Its Native Habitat in Nepal
( Hindawi Limited , 2016 , Article)At present, few organisms are known to and capable of naturally producing laccases and white rot fungi are one such group. In the present study, three fungal species, namely, Ganoderma lucidum-CDBT1, Ganoderma japonicum, ... -
Liposome Delivery Systems for Inhalation: A Critical Review Highlighting Formulation Issues and Anticancer Applications
( S. Karger AG , 2016 , Conference Paper)This is a critical review on research conducted in the field of pulmonary delivery of liposomes. Issues relating to the mechanism of nebulisation and liposome composition were appraised and correlated with literature reports ... -
Magnetic mesoporous nanospheres anchored with LyP-1 as an efficient pancreatic cancer probe
( Elsevier Ltd , 2017 , Article)Immobilization of a ligand that selectively interacts with cancer cells to nanomaterials can enhance their diagnostic and therapeutic efficiency. In this study, we firstly demonstrate the high expression of receptor for ... -
Novel 1,5-diphenyl-6-substituted 1H-pyrazolo[3,4-d]pyrimidin-4(5H)-ones induced apoptosis in RKO colon cancer cells
( Taylor and Francis Ltd , 2016 , Article)Novel 1,5-diphenyl-6-substituted-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-ones were synthesized and characterized. All compounds were screened for their anti-proliferative activities in five different cancer cell lines. The results ... -
Postoperative administration of the acetylcholinesterase inhibitor, donepezil, interferes with bone healing and implant osseointegration in a rat model
( MDPI AG , 2020 , Article)Donepezil is an acetylcholinesterase inhibitor commonly used to treat mild to moderate Alzheimer?s disease. Its use has been associated with increased bone mass in humans and animals. However, the effect of postoperative ... -
Response to: "Cancer risk due to contamination: Consideration from market basket survey in Qatar"
( Elsevier , 2014 , Other)We welcome the comments on our article entitled “A market basket survey of As, Zn and Se in rice imports in Qatar: Health implications” (Rowell et al., 2014). The commenter opens up the debate on what constitutes a safe ... -
Soft-shear induced phase-separated nanoparticle string-structures in polymer thin films
( Royal Society of Chemistry , 2016 , Article)Application of shear stress has been shown to unidirectionally orient the microstructures of block copolymers and polymer blends. In the present work, we study the phase separation of a novel nanoparticle (NP)-polymer blend ... -
Synthesis of Podlike Magnetic Mesoporous Silica Nanochains for Use as Enzyme Support and Nanostirrer in Biocatalysis
( American Chemical Society , 2020 , Article)Magnetic mesoporous materials have attracted great interest due to their combined property of magnetic nanomaterials and mesoporous materials as well as their potential applications in catalysis, bioenrichment, drug delivery, ...