School of Pure and Applied Sciences (JA)
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Recent Submissions
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Effects of Psidium guajava Extract on Optical and Structural Properties of Tin Oxide Nanoparticles
(American Journal of Materials Science, 2025)Nanotechnology has become the most promising area of research with its application in various fields of science such as solar cell. Metals and metal oxide nanoparticles (NPs) are mainly synthesized by chemical methods that ... -
Heavy Metal Concentration Levels in Some Selected Fish from Lake Turkana, Kenya
(International Journal of Research and Analytical Reviews (IJRAR), 2025)Heavy metal pollution in water poses a risk to both drinking water and fish consumed by people. This study aimed to assess how various heavy metals are distributed among different fish species. The study measured the levels ... -
Heavy Metal Concentration Levels In Surface Waters Of Lake Turkana And River Turkwel, Kenya
(IOSR Journal Of Applied Physics (IOSR-JAP), 2025)Heavy metal contamination in surface waters is a significant global concern, particularly because people often settle near accessible water sources like lakes. This study examined the concentrations of heavy metals in water ... -
Green Synthesis of Ga-Doped SnO2 Nanoparticles: Effects of Ga Doping Concentrations on the Structural and Optical Properties
(Journal of Photonic Materials and Technology, 2025)This study explores the transformative impact of gallium (Ga) doping on the structural and optical properties of tin oxide NPs synthesized using chemical and green method. The nanoparticles were synthesized at different ... -
Effect Of Cultivar And Altitude On Fatty Acid Composition Of Avocado From Murang’a County
(IOSR Journal of Applied Chemistry (IOSR-JAC), 2025)Fatty acids are essential for the structure and function of biological systems, and they are the primary source of energy. Avocado oil has high levels of omega-6 and omega-9 fatty acids, as well as natural antioxidants, ... -
Application And Synthesis Of Silica-Based Aerogels For The Removal Of Persistent Organic Pollutants From Water: A Review
(IOSR Journal of Applied Chemistry (IOSR-JAC), 2025)Background: Water contamination is a major global issue that necessitates the development of new and sustainable purification technologies. Aerogels, ultra-light porous materials with a large surface area and unique ... -
Removal of Nitrites from Wetland Waters Based on Diazonium Silica
(American Journal of Chemistry, 2025)Diazonuim silica was prepared and used to remove nitrites in wetland waters. Raw silica was chlorinated using phosphorous pentachloride (PCl5). Chlorinated silica was further reacted with ethylenediamine (EDA) under reflux ... -
Effects of Ag Doping Concentrations on Structural and Optical Properties of Citrus Reticulata Capped ZnO Nanoparticles
(Journal of Nanosciences Research & Reports, 2025-03)Dopants are used to modify the properties of metal oxides. They are classified into p type and ntype. The p type dopants are electron acceptors and they reduce the bandgap energy. The n- type dopants are electron donors. ... -
Heavy Metal Pollution in Water, Detection and Remediations Strategies
(Journal of Emerging Technologies and Innovative Research (JETIR), 2025)Heavy metal pollution poses a significant threat to both human health and the environment, stemming from industrial processes, agricultural methods and urbanization. This study examined the presence of heavy metals such ... -
Adsorptive removal of phosphates from wetland waters using silica molyb date adsorbent
(Journal of Emerging Technologies and Innovative Research (JETIR), 2025)World’s most productive and valuable ecosystem is the wetlands. Quality and functions of wetlands have been affected adversely by deforestation, fertilizers, and pesticides among others. Pollution by phosphates affect ... -
Elemental Composition Of Pulp And Seed Of Avocado Cultivars From Murang’a County
(IOSR Journal of Applied Chemistry (IOSR-JAC), 2025)An estimated two billion individuals worldwide experience chronic micronutrient and mineral deficiencies as well as malnutrition. This represents 7% of the world's illness burden. Avocado is a widely consumed food that is ... -
Chickpea: A Promising Solution for ‘Hidden Hunger
(IOSR Journal of Applied Chemistry (IOSR-JAC), 2025)Hidden hunger, also known as malnutrition, is a serious development challenge that affects people who have limited resources. It is characterized by a lack of essential vitamins, proteins and minerals, such as iron, zinc, ... -
Elementary Removal Of Hydroquinone And 2-Naphthol From Aqueous Solutions By Aminated Cornstarch With Triethanol Amine As Bioadsorbent: Isotherms And Kinetics Studies
(Journal of Emerging Technologies and Innovative Research (JETIR), 2024)Background: The sources of phenolics pollutants in water are mainly chemical industries and pharmaceutical. They are harmful and toxic even at modest concentrations. Despite substantial achievements for water treatment ... -
Herbal Extracts Exhibit Anti-Epilepsy Properties
(IOSR Journal of Applied Chemistry (IOSR-JAC), 2024-11)Epilepsy refers to a group of persistent neurological illnesses characterized by seizures. It is a chronic brain disease that affects 50 million people in the world, being one of the most common neurological disorders. ... -
R isk Assessment of Resident Farmer s in Kilimambogo , Kenya , Using RESRAD Computer Code.
(International Journal of Scientific and Research Publications, Volume 14, Issue 9, September 2024, 2024)The concentration of radionuclides in the any given place is determined by the geology of the area. The levels of primordial radi-onuclides present in soil samples harvested from Kilimambogo region in Kenya was measured ... -
End-Point Determination In Acid Decalcification Of Bone: A New Novel Method
(International Journal of Scientific and Research Publications, Volume 14, Issue 8, August 2024, 2024)Background: Calcium oxalate test is currently the chemical method employed in testing endpoint of decalcification in acid decalcification. However, there are challenges with this existing method used; firstly, the method ... -
Utilization Of Plant Extractives And Compounds For Sitophilus Oryzae (Rice Weevil) Management
(IOSR Journal of Biotechnology and Biochemistry (IOSR-JBB), 2024-08)In stored crops, Sitophilus oryzae (rice weevil) can cause damage of up to 80%, depending on the circumstances of storage. A vast variety of grains and seeds, including sorghum, wheat, corn, oats, rye, barley, rice, and ... -
Production And Characterization Of Bioethanol From Cassava Peels
(IOSR Journal of Applied Chemistry, 2024-05)Majority of rural Africans use inefficient energy sources like wood and fossil fuels, which are not environmentally friendly and hazardous to human health. Bioethanol is an alternative clean source of energy that can be ... -
Concentrations of Selected Heavy Metals in Soil and Tomatoes (Lycopersicon Esculenta Mill.) Grown in Kirinyaga County, Kenya
(International Journal of Research and Analytical Reviews (IJRAR), 2024-04)The contamination of agricultural products by harmful heavy metals poses a significant global health concern, with potential links to severe public health issues such as cancer and neural impairment. Tomatoes (Lycopersicon ... -
Effect of the use of inorganic- based photoluminescent materials in solar energy devices application
(World Journal of Advanced Engineering Technology and Sciences, 2023-07-04)The dynamic processes that take place in life require energy. The main convenient source of energy even in living tissue is hydrocarbons. This is due to the high-carbon based energy source that eventually converts fossil ...
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