Publications (232)
ARTICLE
Evaluation of Antioxidant Contents and Structural Identification by HPTLC and HPLC-MS/MS of Carotenoids in the BF59XCIP1 Variety of Ipomoea batatas L.
Dominique Saga Kaboré * , Benjamin Bazié , Mahamadi Ouedraogo , Remy K Bationo , Moumouni Koala , Constantin M Dabiré , Koussao Somé , Eloi Palé * and Pierre Duez
Objective: Orange-fleshed sweet potatoes are an important source of nutrients for consumers
thanks to the carotenoids they contain. Carotenoids are bioactive compounds which, thanks to their
anti-radical properties, can protect the human body against oxidative stress. Oxidative stress is the
cause of many degenerative diseases(...)
Carotenoids; antioxidant; HPLC-MS/MS; HPTLC-MS.
ARTICLE
Sensitive electrochemical determination of sunset yellow in soft drinks using geopolymer-modified carbon paste electrode
Raïssa Tagueu Massah, Amidou Tall, Boukaré Kaboré, Yssouf Karanga, Wendwaoga Ibrango, Lynn Myllyam Beleuk à Moungam, Evangeline Njanja, Issa Tapsoba, Ignas Kenfack Tonle
A volcanic ash-based geopolymer (GPVA) was used to design an electrochemical sensor for the determination of sunset yellow (SY) in nonalcoholic juices. After the preparation and characterization of the geopolymer material, it was used to modify a carbon paste electrode (GPVA-CPE). The electrochemical impedance spectroscopy (EIS) characterizati(...)
Geopolymer, volcanic, ash, food colorant, voltammetry, soft drink
ARTICLE
Evaluation of 3-methyl-4-nitrophenol a pesticide by-product removal from water using nanofiltration combined by Trichoderma harzianum microbial fuel cell for irrigation purposes
Jean‑Philippe Théodore Silga, Yibor Fabrice Roland Bako, Nesrine Kalboussi, Maxime Pontié, Serge Mbokou Foukmeniok, Mehri Shabani, Issa Tapsoba
Fenitrothion is an organophosphorus insecticide widely used in Sahelian countries. However, fenitrothion undergoes rapid degradation, generating many by-products, the main one being 3-methyl-4-nitrophenol (MNP) known to be hazardous for humans and the environment. The intensive use of fenitrothion has led to environmental contamination, raisin(...)
3-methyl-4-nitrophenol · Nanofiltration · Layer-by-layer · Trichoderma harzianum · Microbial fuel cell
ARTICLE
Functionalization of Arabic Gum by Both Oxidation and Acylation: Application as Sensing Materials for the Electrochemical Determination of Phenolic Compounds
Ousmane Ilboudo, Serge Mbokou Foukmeniok, Yssouf Karanga, Yibor Fabrice Roland Bako, Issa Tapsoba, Ignas Tonlé Kenfack
Novel functionalized Arabic gums (AGs) were obtained by oxidation and acylation reactions on raw Arabic gum. The synthesized materials were used as modifiers of carbon paste electrodes for the determination of quercetin (QCT), rutin (RUT) and both p-aminophenol (PAP) and acetaminophen (APAP) in 0.1 M phosphate buffer solution (PBS), pH 6.0. T(...)
Acetaminophen, P-Aminophenol, Flavonoids, Oxidized Arabic Gum, Standard Additional Method, Simultaneous Determination
ARTICLE
Phytochemical studies and evaluation of the antifungal activities of Hypochaeris radicata L. leaves against rice fungi: Bipolaris oryzae and Curvularia lunata
Raselison Nirintsoa Francine, Karanga Yssouf, Bonzi Schemaeza, Ganame Teeda Hamidou, Tapsoba Issa, Somda Irenée and Raonizafinimanana Ramaroson Béatrice
The aim of the study is to evaluate the phytochemistry and the antifungal activities of the leaf extract of Hypochaeris radicata L. against Bipolaris oryzae and Curvularia lunata pathogenic fungi on rice. The mineral elements were analyzed using a portable XRF analyzer. Total polyphenol content was evaluated using the Folin-Ciocalteu method; t(...)
Hypochaeris radicata L., fungal inhibition, potassium, aluminium, flavonoids, condensed tannins, Bipolaris oryzae, Curvularia lunata
ARTICLE
Laccase-modified graphene electrodes obtained by direct laser writing for the sensitive detection of dopamine in real samples
Bibata Ouedraogo, Amidou Tall, Sabrine Baachaoui, Noureddine Raouafi, Issa Tapsoba
Assaying biological molecules in body fluids is of paramount importance for the diagnosis and monitoring of numerous human diseases. Various pathological conditions involve dopamine (DA) metabolic disorders in their pathophysiology, rendering the monitoring of dopamine highly significant. This paper reports the development of a b(...)
Laser writing · Porous graphene · Enzymes · Selectivity · Sensing · Dopamine
ARTICLE
Quantum chemical studies on inhibiting copper corrosion in nitric acid using some coumarin derivatives
M. Cissé, Y. Bakouan, V. Kouakou, M.A. Tigori and P.M. Niamien
Efforts have been made to limit copper corrosion. Among the many strategies available to protect copper against corrosion, the use of inhibitors is one of the most practical and effective methods. In recent years, quantum chemical calculations have been used to search for new inhibitors. The aim of this work is to study the inhibiting properti(...)
coumarin, corrosion, functional
ARTICLE
Pan‑C2(n+1): A Theoretical Prediction for 2D Carbon Allotropes
Xin-Qi Liu, Ang Ma, Ya-Nan Zhang, Zhi-Jun Yi, Roberts I. Eglitis, Issa Tapsoba, Ran Jia
In this work, the two-dimensional (2D) periodic armchair nanoribbon (pan-C2(n+1)) systems have been proposed and investigated by using the density functional theory (DFT). The pan-C2(n+1) systems can be easily obtained by in-plane rotating the carbon pairs C2 at certain positions in the monolayer graphene (G). The graphene nanoribbon patterns(...)
Defects, Electrical conductivity, Energy, Monolayers, Two dimensional materials
ARTICLE
Physicochemical and Mineralogical Characterizations of Two Natural Laterites from Burkina Faso: Assessing Their Potential Usage as Adsorbent Materials
Corneille Bakouan, Louise Chenoy, Boubié Guel, and Anne-Lise Hantson
In the framework of lateritic material valorization, we demonstrated how the geological environment determines the mineralogical characterizations of two laterite samples,
KN and LA. KN and LA originate from the Birimian and Precambrian environments, respectively. We showed that the geological criterion alone does not determine the applicabil(...)
natural laterites; sorption properties; mineralogy; anionic exchange capacity
ARTICLE
2-Oxo-2H-chromen-7-yl tert-butylacetate
Hypolite Bazie, Eric Ziki, Sorgho Brahima, Veroarisinima Ratsimbazafy, Patrick Roge, Emmanuel Wenger, Abdoulaye Djande and Claude Lecomte
In the title compound, C15H16O4, the dihedral angle between the 2H-chromen 2-one ring system and the tert-butylacetate moiety is 72.72 (9) . In the crystal, the molecules are connected through C—H O hydrogen bonds, generating C(6) chains and R2 2(20) loops that are reinforced by weak aromatic–stacking interactions. The H H, H O/O H, H C/C H an(...)
crystal structure; Hirshfeld surface; coumarin; hydrogen bond
ARTICLE
2-Oxo-2H-chromen-7-yl 3-methylbutanoate
Akoun Abou, Hypolite Bazié, Ludovic Akonan, Abdoulaye Djandé and Pierre Francotte
The title compound, C14H14O4, was synthesized by O-acylation of umbelliferone
with isovaleryl chloride in the presence of diethyl ether as a solvent and pyridine
as a base. The side chain moiety i.e. the acetate fragment linking to the
methylethyl group is almost orthogonal to the almost planar (r.m.s deviation =
0.020 A ˚ ) coumarin ring(...)
crystal structure, coumarin derivative, umbelliferone, hydrogen bonds
ARTICLE
Ultrasensitive Screen-Printed-Electrodes for p-aminophenol Analysis and Applications in Bioremediation and Photodegradation Processes
Jean-Philippe Théodore Silga, Serge Mbokou Foukmeniok, Yibor Fabrice Roland Bako, Assia Chaouch Ramdane, Maryam Nazerifar, Habibollah Younesi, Issa Tapsoba, Pontié Maxime
A screen-printed electrode (SPE) was successfully activated and modified by electrodeposition of nickel (II) tetrasulfonated phthalocyanine film (poly-NiTSPc) for the electrochemical analysis of para-aminophenol (PAP). Cyclic voltammetry, differential pulse voltammetry, electrochemical impedance spectroscopy, optical microscopy and scanning el(...)
3-methyl*4-nitrophenol, nanofiltration, layer-by-layer, microbial fuel cell
ARTICLE
Synthesis, Experimental Characterizations and Theoretical Study of the Chemical Reactivity of Coumarin-6-yl Acetate in Gas and Solvent Phases
Honoré Kouadio Yao, Zakaria Koulabiga, Akoun Abou, Abdoulaye Djandé, Stéphane Coussan, Olivier Ouari
The first objective of the study is based on experimental characterization of the studied compound. The synthetization process of
C11H8O4 (I) involved the O-acetylation of 6-hydroxycoumarin with acetic anhydride, utilizing diethyl ether as a solvent and
pyridine as a base. The obtained structure was characterized by both spectroscopic analys(...)
Coumarin Ester, Crystal Structure, Spectroscopic Analysis, Quantum Chemical Calculations, Fukui Functions
ARTICLE
SYNTHESIS OF A HYBRID NANOMATERIAL COMBINING SILVER NANOPARTICLES WITH WATER-SOLUBLE ZINC PHTHALOCYANINES [ZnPc(CO2H)4(COATP)4@AgNPs]
Lassané Tarpaga, Youssoufou Bakouan, Seydou Ouédraogo, Bintou Sessouma, Mabinty Bayo-Bangoura, Catherine Amiens, Jérôme Esvan, Karifa Bayo
Phthalocyanine based hybrid nanomaterials show promises in biomedical applications. However, their lack of solubility in aqueous phase limits their development. This paper aims at bringing some answers to this problem, by reporting the synthesis of a hybrid nanomaterial consisting of new zinc phthalocyanines substituted with four carboxylic ac(...)
Zinc phthalocyanine, Silver nanoparticles, Characterization, Solubility
ARTICLE
Synthesis and structure of 2-oxo-2H-chromen-4-yl 4-bromobenzoate: work carried out as part of the CNRS AFRAMED project
Valentin Bationo, Konan René Kambo, Brahima Sorgho, Charles Bavouma Sombié , El Walda Thiam, Rasmané Semdé, Abdoulaye Djandé , Claude Lecomte and Emmanuel Wenger
In the title compound, C16H9BrO4, the dihedral angle between the chromen-2-
one ring system (r.m.s. deviation = 0.006 A ˚ ) and the bromobenzene ring is
10.29 (6)�. In the crystal, the molecules are connected through C—H� � �O
hydrogen bonds and �–� stacking interactions. According to a Hirshfeld surface
analysis, H� � �H (22.4%), O� � �H/(...)
crystal structure, hydrogen bonds, Hirshfeld surface analysis, coumarin.