Browsing Research Articles (Chemistry) by Title
Now showing items 43-62 of 246
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Copper-modified carbon nano-onions as electrode modifiers for the electroanalysis of the antiretroviral drug efavirenz
(Elsevier Ltd, 2023)The high prescription and consumption rate of antiretroviral drugs (ARV) such as Efavirenz (EFV) in South Africa for the treatment of the human immunodeficiency virus (HIV) has resulted in its presence in wastewater and ... -
Correction: Baker, P. et al. electrochemical aptasensor for endocrine disrupting 17β-estradiol based on a poly(3,4-ethylenedioxylthiopene)-gold nanocomposite platform. Sensors 2010, 10, 9872-9890
(MDPI, 2011)Herewith please find corrected structures for Figure 8 in our paper published in Sensors in 2010. -
Correction: Layer-structured FeCo bihydroxide as an ultra-stable bifunctional electrocatalyst for water splitting at high current densities
(Royal society of chemistry, 2021)The development of stable bifunctional electrodes capable of operation at high current densities is a key requirement for large scale hydrogen generation by water electrolysis. Herein, amorphous FeCo hydroxides are ... -
Covid-19 and cancer therapy: Interrelationships and management of cancer cases in the era of Covid-19
(Hindawi, 2021)'e COVID-19 global epidemic poses this generation’s biggest worldwide public health challenge probably since the 1918 influenza epidemic. Recent reports on two new variants have triggered a dramatic upsurge in research ... -
Crystal structure of 2,2′-(propane- 1,3-dilylbis(azaneylylidene))bis(methanylylidene) bis(4-methylphenol), C19H22N2O2
(De Gruyter, 2021)C19H22N2O2, monoclinic, P21/c (no. 14), a = 19.3063(4) Å, b = 5.83200(10) Å, c = 14.7996(3) Å, β = 92.715(1)°, V = 1664.48(6) Å3, Z= 4, Rgt(F) = 0.0423, wRref (F2) = 0.1102, T = 100(2) K. -
The crystal structure of fac-tricarbonyl((pyridin-2-yl)methanamino-κ2N,N′)-((pyridin-2-yl)methanamino-κN)rhenium(I) nitrate,C15H16O3N4Re
(De gruyter, 2023)Abstract: C15H16O3N4Re, triclinic, P1̄ (no. 2), a = 7.4939(2) Å, b = 10.1316(2) Å, c = 13.8351(3) Å, α = 103.453(2)°, β = 101.992(2)°, γ = 107.880(2)°, V = 926.98(4) Å3, Z = 2, Rgt(F) = 0.0341, wRref(F2) = 0.0861, T = 150 K. -
The crystal structure of fac-tricarbonyl((pyridin-2-yl)methanamino-κ2N,N′)-((pyridin-2-yl)methanamino-κN)rhenium(I) nitrate,C15H16O3N4Re
(De gruyter, 2023)ac-[Re(N,N) (CO)3(H2O)] (N,N = (2-picolylamine- κ2N,N') (20 mg, 0.051 mmol) was dissolved in methanol (5 mL) and 2-picolylamine (5.36 mL, 0.051 mmol) dissolved in (10 mL) methanol was added. The solution was then stirred ... -
The crystal structure of fac-tricarbonyl(bis(3,5-dimethyl-4H-pyrazole)-κ1 N)-((nitrato)-κ1 O)-rhenium(I) - 3,5-dimethyl-4H-pyrazole(1/1), C18H23N7O6Re
(Walter de Gruyter GmbH, 2024)C18H23N7O6Re, triclinic, P 1 (no. 2), a = 10.527(2) Å, b = 10.849(2) Å, c = 11.215(2) Å, α = 72.798(2)°, β = 69.767(2)°, γ= 87.496(10)°, V = 1145.52(4) Å3, Z = 2, R gt(F) = 0.0273, wR ref(F 2) = 0.0727, T = 150(2) K. -
Crystal structure of saposin B reveals a dimeric shell for lipid binding
(National Academy of Sciences, 2003)Saposin B is a small, nonenzymatic glycosphingolipid activator protein required for the breakdown of cerebroside sulfates (sulfatides) within the lysosome. The protein can extract target lipids from membranes, forming ... -
Crystal structure, Hirshfeld surface analysis and DFT studies of 5-(adamantan-1-yl)-3-[(4- chlorobenzyl)sulfanyl]-4-methyl4H-1,2,4-triazole, a potential 11βHSD1 inhibitor
(Scientific Reports, 2019)5-(Adamantan-1-yl)-3-[(4-chlorobenzyl)sulfanyl]-4-methyl-4H-1,2,4-triazole (4) was identifed as a potential 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) inhibitor and this paper describes the in-depth structural ... -
Crystal structure, hirshfeld surface analysis and dft studies of 5-(adamantan-1-yl)-3-[(4-chlorobenzyl)sulfanyl]-4-methyl-4h-1,2,4-triazole, a potential 11β-hsd1 inhibitor
(Scientific Reports, 2019)5-(Adamantan-1-yl)-3-[(4-chlorobenzyl)sulfanyl]-4-methyl-4H-1,2,4-triazole (4) was identified as a potential 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) inhibitor and this paper describes the in-depth structural ... -
Cytotoxic, cytostatic and HIV-1 PR inhibitory activities of the soft coral litophyton arboreum
(MDPI, 2013)Bioassay-guided fractionation using different chromatographic and spectroscopic techniques in the analysis of the Red Sea soft coral Litophyton arboreum led to the isolation of nine compounds; sarcophytol M (1), alismol ... -
Determination of anthracene on Ag-Au alloy nanoparticles/overoxidized-polypyrrole composite modified glassy carbon electrodes
(MDPI, 2010)A novel electrochemical sensor for the detection of anthracene was prepared by modifying a glassy carbon electrode (GCE) with over-oxidized polypyrrole (PPyox) and Ag-Au (1:3) bimetallic nanoparticles (Ag-AuNPs). The ... -
Determination of binding constants for the complexes between heavy metal ions and cucurbit[n]uril
(John Wiley and Sons Inc, 2024)One of the major concerns worldwide is the rapid increase in water pollution with hazardous heavy metals. The Cucurbit[n]uril (CB[n]) structure provides an inner hydrophobic cavity accessible through two electrostatically ... -
Determination of paracetamol on electrochemically reduced graphene oxide–antimony nanocomposite modified pencil graphite electrode using adsorptive stripping differential pulse voltammetry
(MDPI, 2022)A simple, highly sensitive, accurate, and low-cost electrochemical sensor was developed for the determination of over-the-counter painkiller, paracetamol (PC). The enhanced sensing capabilities of the developed sensor ... -
Development of adsorptive materials for selective removal of toxic metals in wastewater: A review
(MDPI, 2022)Removal of toxic metals is essential to achieving sustainability in wastewater purification. The achievement of efficient treatment at a low cost can be seriously challenging. Adsorption methods have been successfully ... -
Development of Unsupported Ru and Ni Based Oxides with Enhanced Performance for the Oxygen Evolution Reaction in Acidic Media
(Springer, 2023)The high cost of catalyst materials suitable for the oxygen evolution reaction (OER) in polymer electrolyte membrane water electrolyzers (PEMWE) is still a major hurdle that needs overcoming before commercial PEMWE can ... -
Dichlorido-[(2-diphenylphosphino-benzylidene)-2-methylphenylen-amine]palladium( II) acetonitrile monosolvate
(International Union of Crystallography, 2013)The title imino–phosphine compound, [PdCl2(C26H22NP)] - CH3CN, was prepared by reaction of N-[2-(diphenylphosphanyl) benzylidene]-2-methylaniline with dichlorido(cycloocta- 1,5-diene)palladium(II) in dry CH2Cl2. The ... -
Dichlorido-[2-(2,6-diethylphenyl)iminomethylquinoline-N,N’]palladium(II) acetonitrile monosolvate
(International Union of Crystallography, 2012)The title complex, [PdCl2(C20H20N2)] CH3CN, was synthesized by the reaction of 2-[(2,6-diethylphenyl)iminomethyl]quinoline with dichlorido(cycloocta-1,5-diene)palladium(II) in dry CH2Cl2. The PdII ion is coordinated by ... -
Dry Gongronema latifolium aqueous extract mediated silver nanoparticles by one-step in-situ biosynthesis for antibacterial activities
(Elsevier, 2021)In-situ biosynthesis of silver nanoparticles for antibacterial activities doped with aqueous extract of dry Gongronema Latifolium (DGL) is presented in this work. The absorbance was determined using a UV-Visible analysis ...