School of Pure and Applied Sciences (JA): Recent submissions
Now showing items 1-20 of 285
-
Effects of Catchment Land Use on Water Quality in Maragua and Mathioya Riverine Wetlands , Murang’a County , Kenya
(INTERNATIONAL JOURNAL OF RESEARCH AND INNOVATION IN APPLIED SCIENCE (IJRIAS), 2025)Wetland ecosystems in Murang’a County are diminishing due to increased catchment land use practices. Part of wetlands have been converted into farmlands where various agricultural activities are carried out while some ... -
Synthesis and Characterization of Antiplasmodial Gallium (III) and Iron (III) Complexes of Aminochloroquinoline-3, 4-Hydroxypyridinone Conjugates: Preliminary Studies.
(INTERNATIONAL JOURNAL OF RESEARCH AND INNOVATION IN APPLIED SCIENCE (IJRIAS), 2025)Metallation is a drug optimization strategy that has been used to enhance efficacy as well as pharmacokinetic and pharmacodynamic PK/PD properties in antimalarials. In our earlier studies antiplasmodial aminochloroquinol ... -
Structural and Optical Properties of ZnO:Al:Ga Co-Doped Nanoparticles: Investigation on the Effects of pH of the Precursor Solution via a Simple Sol-Gel Route
(American Journal of Materials Science, 2024)Zinc oxide (ZnO) has unique properties that are suitable for solar cell applications. However, there is need to improve its effectiveness by incorporating dopants into ZnO structure. This study investigates how pH affects ... -
Rapid Macronutrient Profiling of Maize Varieties Grown in Kirinyaga County, Kenya Using Atr-Ftir Spectroscopy and Chemometric Techniques.
(INTERNATIONAL JOURNAL OF RESEARCH AND INNOVATION IN APPLIED SCIENCE (IJRIAS), 2025)Maize (Zea mays), a staple food in Kenya, is vital for food security and economic sustainability, contributing 12.65% to the agricultural GDP. Despite its centrality, limited studies have explored the nutritional ... -
Leveraging off higher plant phylogenetic insights for antiplasmodial drug discovery
(Natural Products and Bioprospecting, 2023)The antimalarial drug-resistance conundrum which threatens to reverse the great strides taken to curb the malaria scourge warrants an urgent need to find novel chemical scaffolds to serve as templates for the development ... -
Kojic acid derived hydroxypyridinone–chloroquine hybrids: Synthesis, crystal structure, antiplasmodial activity and b-haematin inhibition
(Bioorganic & Medicinal Chemistry Letters, 2014)Aminochloroquinoline–kojic acid hybrids were synthesized and evaluated for b-haematin inhibition and antiplasmodial activity against drug resistant (K1) and sensitive (3D7) strains of Plasmodium falciparum. Compound 7j ... -
Effects of Catchment Land Use on Nutrients and Heavy Metals Inflows into Maragua and Mathioya Wetlands in Murang’a County, Kenya
(INTERNATIONAL JOURNAL OF RESEARCH AND INNOVATION IN APPLIED SCIENCE (IJRIAS), 2025)Wetland ecosystems in Murang’a County are diminishing due to increased catchment land use practices. Part of wetlands have been converted into farmlands where various agricultural activities are carried out while some parts ... -
Analysis of Pesticide Residues in Tomatoes and French Beans from Murang’a and Kiambu Counties, Kenya
(European Journal of Nutrition & Food Safety, 2020)Poor Pesticide-handling practices during production of tomatoes and French beans pose adverse health and environmental effects. This study was conducted to determine the concentrations of pesticide residues in tomatoes ... -
Prioritised identification of structural classes of natural products from higher plants in the expedition of antimalarial drug discovery
(Natural Products and Bioprospecting, 2023)The emergence and spread of drug-recalcitrant Plasmodium falciparum parasites threaten to reverse the gains made in the fight against malaria. Urgent measures need to be taken to curb this impending challenge. The ... -
Development of a Traceability Model for Geographical Origin of Kenya’s Black Teas Based on Principal Component Analysis of FTIR and UV-Vis Spectral Data
(INTERNATIONAL JOURNAL OF RESEARCH AND INNOVATION IN APPLIED SCIENCE (IJRIAS, 2025)Authentic tracing of the origins of black tea is important in the tea market as this helps to extrapolate the quality and thus prices. Tasting on its own can be a misleading test for tea quality and origin tracing since ... -
Electrophoretic Deposition of TiO2/Nb2O5 Composite Electrode Thin Films for Photovoltaic Application
(Journal of Energy and Power Engineering, 2014)Nano sized powders of TiO2 (titanium dioxide) and Nb2O5 (Niobium (V) oxide) were used to fabricate TiO2/Nb2O5 composites thin films by EPD (electrophoretic deposition) technique. The metal oxide powders, together with ... -
Effect of Process-Related Parameters on Band Gap of Electrophoretically Deposited TiO2/Nb2O5 Composite Thin Films
(Africa Journal of Physical Sciences, 2014)Nano-crystalline composite thin films of titanium dioxide and niobium (v) oxide (TiO2/Nb2O5 ) were successfully deposited on fluorine doped tin oxide (FTO) coated glass substrate using electrophoretic deposition (EPD) ... -
Electrophoretic Deposition and Characterization of TiO2/Nb2O5 Composite Thin Films for Dye Sensitized Solar Cells
(Journal of Materials Physics and Chemistry, 2018)In this study, Electrophoretic Deposition (EPD) technique was used to fabricate TiO2/Nb2O5 composite thin films on FTO coated glass for application as photoelectrodes in Dye Sensitized Solar Cells (DSSC). A TiO2/Nb2O5 ratio ... -
Effects of Varying Growth Temperature on Optical and Structural Properties of Iron-doped Zinc Oxide Nanoparticles
(Nanoscience and Nanotechnology, 2025)Iron-doped zinc oxide nanoparticles (Fe: ZnO NPs) have gained attention in biomedical fields due to their tunable optical properties and potential as biomedical agents. However, the influence of growth temperature on ... -
Effects of Glutathione Concentration Used as a Capping Agent on the Structural, Optical, and Photoluminescence Properties of Fe: ZnO NPs
(American Journal of Condensed Matter Physics, 2025)Glutathione (GSH) capped Iron-doped zinc oxide nanoparticles (GSH-Fe: ZnO NPs)at varying GSH concentrations (0.002, 0.004, 0.006, 0.008, 0.01, 0.012, 0.014M) were successfully synthesized through sol-gel route to study their ... -
Optimization Of Ph, Time, Yeast Substrate Ratio And Temperature For Production Of Bioethanol From Sweet Potato (Ipomoea Batatas) Peels
(IOSR Journal of Applied Chemistry (IOSR-JAC), 2025)Introduction: The growing demand for renewable energy has led to increased interest in bioethanol production from non-food biomass. Sweet potato (Ipomoea batatas) peels, an agro-industrial waste, present a viable feedstock ... -
Influence Of Hydrochloric Acid Concentration On Reducing Sugar Yield And Fermentation Ph In Sweet Potato Peels Hydrolysis
(IOSR Journal of Applied Chemistry (IOSR-JAC), 2025)Introduction: Acid hydrolysis remains one of the most effective methods for converting starchy and lignocellulosis feedstocks into fermentable sugars as compared to physical and thermal methods. This study determines the ... -
Synthesis and characterization of Ag-ZnO using citrus reticulata peel extract
(Mater. Res. Express, 2025)To minimize the use of fossils fuels, solar cells have been considered to be effective despite facing major setbacks such as its cost and effectiveness. In this research Ag-ZnO was synthesized using Citrus reticulata as ... -
Structural and Optical Properties of Fe Doped Tio2 Nanoparticles: Investigation of Effects of Different Doping Concentration
(Advances in Materials, 2024)Fe-doped TiO2 nanoparticles (F-T NPs) were synthesized using the sol-gel method where different molar concentrations (0, 1, 2, 3, 5, 7, 9, and 10%) of Iron (iii) nitrate were added to a constant amount of the metal precursor ... -
Removal Of Phenolic Compounds From Aqueous Media Using Triethylamine Anchored Rice Husks
(IOSR Journal of Applied Chemistry (IOSR-JAC), 2024)Phenolic compounds in water are contaminants of concern even at low concentrations. They get incorporated in water from various sources such as industrial, mining and natural sources. Natural sources of phenolic compounds ...