Thiamine (vitamin B1) is an essential biomolecule with potential coordination sites capable of forming stable metal complexes, while auxiliary ligands can further enhance the structural and physicochemical properties of such systems. Copper-based thiamine complexes have attracted...
Open access
Research Article10.9734/irjpac/2026/v27i31006
The discharge of untreated industrial effluents into the Logone River poses serious risks to aquatic ecosystems and public health in Moundou, southern Chad. This study assessed the physicochemical quality of the Logone River at two monitoring stations one upstream and one downstr...
Open access
Research Article10.9734/irjpac/2026/v27i31005
The electrochemical behavior of a solution containing 5 mmolal Pb(II) in a choline chloride–glycerol medium (molar ratio 1:2) was investigated at a glassy carbon (GC) electrode at 100 ± 5 °C. Electrochemical and physicochemical studies were carried out using techniques such as cy...
Open access
Research Article10.9734/irjpac/2026/v27i31004
Bananas are well-known for their high nutritional content and good health benefits. However, the presence of ethylene shortens postharvest shelf life. Therefore, an effective preservation technique is essential for lowering post-harvest losses and increasing the marketability of...
Open access
Research Article10.9734/irjpac/2026/v27i31003
Organosilicon compounds, particularly chlorosilanes, are of significant interest due to their structural versatility and pivotal role as precursors for Si–N, Si–O, and Si–C bond formation in functional materials and coordination systems. Among them, dichlorodiphenylsilane (Ph₂SiC...
Open access
Research Article10.9734/irjpac/2026/v27i31002
The widespread disposal of waste plastics, such as polypropylene, in landfills and coastal areas, coupled with the increasing demand for sustainable aviation fuels, has motivated researchers to explore the conversion of waste plastics into valuable hydrocarbon fuels. This study i...
Open access
Research Article10.9734/irjpac/2026/v27i31001
Background: Zanthoxylum gilletii, an important African medicinal plant, is widely used in traditional medicine for treating various ailments due to its rich phytochemical composition. However, despite its extensive ethnomedicinal applications, the specific bioactive compounds res...
Open access
Research Article10.9734/irjpac/2026/v27i31000
Carapa procera (Meliaceae), known for its traditional therapeutic properties, was the subject of this study focused on optimizing the method of extracting oil from its kernels, a raw material of choice for cosmetic and pharmaceutical industries. Two extraction methods were compar...
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Research Article10.9734/irjpac/2026/v27i3999
Sugar binding enhances fluorescence by strengthening the boron–nitrogen. Lewis acid–base interaction, which suppresses photoinduced electron transfer and quenched emission. As a result, these systems exhibit enhanced fluorescence in neutral aqueous solutions upon sugar binding. T...
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Research Article10.9734/irjpac/2026/v27i2997
Densities and viscosities of binary liquid mixtures of ethyl acetate with isobutanol and n-hexane were measured over the entire range of composition at 303.15, 308.15, 313.15 and 318.15 K. The experimental density and viscosity data have been used to evaluate the excess molar vol...
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Research Article10.9734/irjpac/2026/v27i2998
The fruit of Rosa canina (rosehip) has long been used in traditional medicine, and recent studies confirm its health benefits due to its content of flavonoids, carotenoids, fatty acids, and high vitamin C levels. This study examined three preparations: infusion, ultrasound-assist...
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Research Article10.9734/irjpac/2026/v27i2996
Absorption and emission spectral maxima of 4-methoxyacetophenone (4MAP) in different a-CD and b-CD concentrations with pH~3 and pH~7 solutions were analysed using UV-visible, fluorescence, time resolved fluorescence measurements and molecular modeling methods. The spectral proper...
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Research Article10.9734/irjpac/2026/v27i2995
The absorption and emission spectral behaviour of 2,4-diaminotoluene (24DAT) was systematically investigated in the presence of varying concentrations of α-cyclodextrin (α-CD) and β-cyclodextrin (β-CD) at approximately pH 3 and pH 7, as well as in different solvents. Spectroscopi...
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Research Article10.9734/irjpac/2026/v27i2993
This study presents a comparative investigation into the corrosion inhibiting properties of extracts derived from the stem and leaves of Caladium tricolor (wild cocoyam) in acidic media. The primary objective was to evaluate and compare the efficacy of these plant parts in mitiga...
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Research Article10.9734/irjpac/2026/v27i2994
Imafidon Osahon Nosakhare, Okosun Joseph Zekeri, Orji Ugochukwu Richards, Blessed C. Anyanwu, Olamide K. Asaju, Godwin Yakubu, Chukwuebuka A. C. Onyeaghala, Oboh Osabhuohien, Ochanya B. Onuh, Chinwendu C. Ezinwa & Hauwa A. Sani·International Research Journal of Pure and Applied Chemistry·2026
Carbonized periwinkle shell was modified by two types of activation: alkaline modification with 1 M NaOH and acidic modification with 1 M HNO3. The three carbon samples thus produced were tested for the removal of methylene blue from solution. This test was carried out to provide...
Open access
Research Article10.9734/irjpac/2026/v27i2992