Chemistry & Earth Sciences: Recent submissions
Now showing items 101-120 of 609
-
Polarization resistance study of inhibition of corrosion of lead by sodium benzoate in 0.1 M sodium hydroxide solution
( Council of Scientific and Industrial Research , 1989 , Article)The effect of sodium benzoate (SB) as an inhibitor of corrosion of lead in 0.1 M NaOH solution has been investigated by using the polarization resistance technique. The concentrations of SB employed are in the range 1-5 × ... -
Optical biosensor based on ultrathin SOI waveguides
( Optica Publishing Group (formerly OSA) , 2020 , Conference)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. -
Inner sphere oxidation of N,N′-ethylenebis(isonitrosoacetyleacetoneimine)copper(II) by N-bromosuccinimide in aqueous weakly acidic solutions
( Springer Nature , 2013 , Article)The kinetics of oxidation of N,N'-ethylenebis(isonitrosoacetyleacetoneimine) copper(II) complex, CuL, by N-bromosuccinimide (SBr) in weakly aqueous acidic solutions was studied under pseudo-first-order conditions. Plots ... -
High-frequency viscoelastic measurements of fluids based on microcantilever sensing: New modeling and experimental issues
( Elsevier , 2013 , Article)In general, microrheology is carried out using active or passive particle-tracking techniques. In the present paper, a novel technique based on the out-of-plane bending vibrations of a microcantilever beam immersed into a ... -
Physical functionalization of multi-walled carbon nanotubes for enhanced dispersibility in aqueous medium
( Springer Nature , 2020 , Article)Noncovalent functionalization of multi-walled carbon nanotubes (MWCNTs) by anionic surfactants (sodium dodecylbenzene sulfonate; SDBS and sodium cholate; SC) results in stable aqueous dispersions. SDBS showed better ... -
Erratum to: Carbon black dispersions in surfactant-based microemulsion — Corrigendum (Journal of Materials Research, (2018), 33, 9, (1301-1307), 10.1557/jmr.2017.451)
( Springer Nature , 2018 , Article)In Youssry et al.1, the incorrect image was provided for Fig. 5. The correct figure is below. -
Formulation and rheological characterization of piezoelectric nanofluids
( Elsevier , 2023 , Article)We introduced a novel concept on energy harvesting nanofluids of hybrid piezoelectric ceramic and polymeric (BaTiO3 and PVdF) materials in PDMS. Rheology, rheo-microscope and impedance spectroscopy complementary enabled ... -
Enhanced electrochemical conversion of CO2 into formic acid using PbSO4/AtSn electrode: Catalyst synthesis and process optimization
( Elsevier , 2023 , Article)Electrochemical carbon dioxide (CO2) reduction is among the most promising and effective methods for producing valuable fuels while simultaneously addressing global warming. Numerous metal-based materials showed promising ... -
Efficient electrochemical conversion of CO2 into formic acid using colloidal NiCo@rGO catalyst
( Elsevier , 2024 , Article)A simple approach was used to synthesize a catalyst based on colloidal NiCo with rGO support. The catalyst was uniformly deposited on acid-treated Sn foil using drop-casting method. The prepared NiCo@rGO catalyst was ... -
Synchronous spectrofluorimetric study of the supramolecular host–guest interaction of β-cyclodextrin with propranolol: A comparative study
( Elsevier , 2015 , Article)The objective of this work is to assess the use of constant-wavelength synchronous fluorescence spectroscopy (SFS) in comparison to conventional fluorescence spectroscopy (CFS) for the investigation of the supramolecular ... -
Investigation on the impact of solvent on the photochemical properties of the photoactive anticancer drug Vemurafenib: A computational study
( Elsevier , 2020 , Article)Rationalizing the photochemical behavior of a photosensitive drug in terms of molecular properties is necessary toward understanding related potential phototoxicity. Here, we report on the effect of the molecular ... -
Computational study on the nanotubes formation between olsalazine and β-cyclodextrin
( Avestia Publishing , 2017 , Conference)Interests in cyclodextrin-derived nano-assembled supramolecular systems have recently grown notably [1,2]. Cyclodextrins are a family of oligosaccharides that possess very characteristic features of conical shape with ... -
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 ... -
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 ... -
Computational study on the mechanism of the photouncaging reaction of vemurafenib: Toward an enhanced photoprotection approach for photosensitive drugs
( Multidisciplinary Digital Publishing Institute (MDPI) , 2021 , Article)The photochemical behavior of the photosensitive first-line anticancer drug vemurafenib (VFB) is of great interest due to the impact of such behavior on its pharmacological activity. In this work, we computationally ... -
The supramolecular host-guest complexation of Vemurafenib with β-cyclodextrin and cucurbit[7]uril as drug photoprotecting systems: A DFT/TD-DFT study
( Elsevier , 2020 , Article)The supramolecular host-guest complexation of the first-line anticancer drug Vemurafenib (VFB) with β-cyclodextrin (β-CD) and cucurbit[7]uril (CB7) is computationally investigated employing the DFT/TD-DFT method in implicit ... -
Computational Insights on the Electrocatalytic Behavior of [Cp*Rh] Molecular Catalysts Immobilized on Graphene for Heterogeneous Hydrogen Evolution Reaction
( Springer Nature , 2020 , Article)The heterogeneous metal-based molecular electrocatalyst can typically exhibit attractive features compared to its homogeneous analogue including recoverability and durability. As such, it is necessary to evaluate the ... -
Biodegradable polysaccharide grafted polyacrylamide inhibitor for corrosion in CO2- saturated saline solution
( Elsevier , 2023 , Article)A biodegradable polysaccharide-based inhibitor is grafted with polyacrylamide (PAM) for oilfields’ sweet corrosion. The green properties of agar and PAM were incorporated to synthesize an agar-grafted-PAM (AGGPAM) inhibitor. ... -
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 ... -
Conducting polyaniline nanorods doped with aromatic carboxyl chain end functionalized polystyrene
( Elsevier , 2015 , Article)The preparation of new conducting polyaniline (PANI) derivatives with different nanostructures is described. PANI derivatives doped with aromatic carboxyl chain end functionalized polystyrene derivatives of different number ...
