Department of Chemistry: Recent submissions
Now showing items 61-80 of 337
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Simultaneous quantification of acetaminophen and tryptophan using a composite graphene foam/Zr-MOF film modified electrode
(New Journal of Chemistry, 2020) -
Bioactive Analysis of Auricularia Delicata: Extraction, Purification, and Characterization of Polysaccharides from Auricularia Delicata-Morocco Forest
(Academia, 2020)Auricularia mushrooms are bioactive compounds which are mostly polysaccharides. Many studies have shown the use of Auricularia from wild mushroom for medicinal purposes such as antioxidant, antidiabetic, antitumor, ... -
Phytochemistry and insecticidal activity of Annona mucosa leaf extracts against Sitophilus zeamais and Prostephanus truncatus
(Taylor and Francis online, 2021)A new oleanane type triterpene characterized as 3α, 24-diacetoxy-12-oleanene (1) together with known compounds 2-10, were isolated from Annona mucosa leaf extracts. Their structural elucidation was accomplished using ... -
Effects of temperature and humidity and effectiveness of some selected antioxidants on lipid oreochromis niloticus L.) of Lake Victoria, Kenya
(Research Gate, 2021)Spoilage of fish and its related products due to oxidation is a primary problem leading to both loses in income and environmental degradation. Various methods such as sun-drying, smoking and refrigeration as currently ... -
Structural, Magnetic And Electronic Properties Of NbN Polymorphs By Ab-Initio Study
(2020)The structural, electronic and magnetic properties of NbN are studied by ab initio method by considering the four polymorphs {B1 (rock salt), B4 (wurtzite), B81 (NiAs) and Bh (WC-type)} of NbN. The results show that ... -
Covid-19 Evolution: Analysis of Public Health Countermeasures in Kenya.
(Research gate, 2020)Millions of people across the globe are currently at a risk of infection of SARS-Cov-2, have been infected and others have died. The coronavirus has spread worldwide despite the multiple countermeasures to limits its ... -
Synthesis, characterization and application of acid and alkaline activated volcanic ash-based geopolymers for adsorptive remotion of cationic and anionic dyes from water
(Elsevier, 2021)In this work, two geopolymers were prepared by acid activation (GPAc) and alkaline activation (GPAl) approaches using volcanic ash (VA) as the precursor material. The geosorbents were characterized by X-ray diffraction ... -
Single and binary adsorption of sulfonamide antibiotics onto iron‑modifed clay: linear and nonlinear isotherms, kinetics, thermodynamics, and mechanistic studies
(Springer, 2018)Iron-modifed raw kaolinite clay (Fe-MC) was synthesized by co-precipitation method, characterized, and then applied as a low-cost adsorbent to sequester sulfachloropyridazine (SCP) and sulfadimethoxine (SDM), emergent ... -
The effect of substituents on the reactivity of dichloridotriphenylphosphinoruthenium(II) complexes: kinetic and mechanistic study
(Taylor and Francis, 2021)The rates of substitution of chloro ligands from a series of ruthenium(II) complexes, [Ru(κ3-L)(PPh3)Cl2] (L = 2,2′:6′,2′′-terpyridine, 1; 4′-(4-methylphenyl)-2,2′:6′,2′′-terpyridine, 2; 4,4′4″-tri-tert-butyl-2,2′:6′,2′′ ... -
Synthesis and characterization of FSB@Fe3O4 composites and application in removal of indigo carmine dye from industrial wastewaters
(Springer, 2021)The syntheses and characterization of fish scale biochar magnetic composites (FSB@Fe3O4) and their applications in the removal of indigo carmine dye from effluents are described. Preparation of the fish scale biochar ... -
Controlling the reactivity of [Pd(II)(N^N^N)Cl]+ complexes using 2,6-bis(pyrazol-2-yl)pyridine ligands for biological application: Substitution reactivity, CT-DNA interactions and in vitro cytotoxicity study
(Elsevier, 2020)Four [(N^N^N)Pd(II)Cl]+ complexes [chloride-(2,2′:6′,2′′-terpyridine)Pd(II)]Cl (PdL1), [chlorido(2,6-bis(N-pyrazol-2-yl)pyridine)Pd(II)]Cl (PdL2), [chlorido(2,6-bis(3,5-dimethyl-N-pyrazol-2-yl)pyridine)Pd(II)]Cl (PdL3) and ... -
Toward a size scale-up cold sintering process at reduced uniaxial pressure
(The American Ceramic Society, 2019)Cold sintering is a low-temperature powder process methodology that enables the densification of ceramics and ceramic-based composites at significantly reduced times and temperatures. Although the general notion of ... -
Distribution and removal efficiency of heavy metals by a conventional activated sludge at a municipal wastewater treatment plant in Kisumu City
(International Science Community Association, 2017)The aim of this study was to evaluate the occurrence and the instantaneous overall efficiency of the municipal wastewater treatment facility in Kisumu City-Kenya, a highly populated City, and compare the effluent quality ... -
Phytochemistry and insecticidal activity of Annona mucosa leaf extracts against Sitophilus zeamais and Prostephanus truncatus
(Taylor and Francis, 2020)A new oleanane type triterpene characterized as 3a, 24-diacetoxy 12-oleanene (1) together with known compounds 2-10, were isolated from Annona mucosa leaf extracts. Their structural eluci dation was accomplished using ... -
Adsorption of copper ions from water onto fish scales derived biochar: Isothermal perspectives
(Journal of Materials and Environmental Science, 2020)In this work, Tilapia (Oreochromis niloticus) fish scales were used for the development of an economical biochar (FSB) by slow pyrolysis at 600 oC. The FSB was characterized using energy dispersive x-ray (EDX), x-ray ... -
Ursane and tirucallane-type triterpenes of Boswellia rivae oleo-gum resin
(Taylor &Francis, 2016)Two new ursane-type triterpenes characterized as 3-oxo-24-acetoxy11α-hydroxy-urs-12-ene (1) and methyl 3α-acetoxy-11α-methoxyurs-12-en-24-oate (2), together with known compounds 3–11, were isolated from Boswellia rivae ... -
Controlling the reactivity of [Pd(II)(N^N^N)Cl]+ complexes using 2,6-bis(pyrazol-2-yl)pyridine ligands for biological application: Substitution reactivity, CT-DNA interactions and in vitro cytotoxicity study
(Elsevier, 2020)Four [(N^N^N)Pd(II)Cl]+ complexes [chloride-(2,2′:6′,2′′-terpyridine)Pd(II)]Cl (PdL1), [chlorido(2,6-bis(N-pyrazol-2-yl)pyridine)Pd(II)]Cl (PdL2), [chlorido(2,6-bis(3,5-dimethyl-N-pyrazol-2-yl)pyridine)Pd(II)]Cl (PdL3) and ... -
Antioxidant and Free Radical Scavenging Activities of Selected Kenyan Leafy Vegetables
(African Environmental Review Journal, 2020)Naturally occurring antioxidants found in vegetables and fruits can play a critical role in deactivating free radicals often before they attack biological cells in humans. Indigenous Kenyan vegetables are potential sources ... -
Microplastics as Emerging Contaminants: Occurrence, Toxicology, and Analysis
(IG1 Global publishers of timely knowledge, 2020)The ever-increasing production of plastics and concomitant poor plastic waste disposal systems explain the recent rising concerns over the occurrence of microplastics in freshwater resources. Microplastics are presently ...
