Publications (261)
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
Eco-friendly Treatment of Industrial Wastewater with Local Raw Clay
Loukou Sawadogo, Kassoum Barry,* Ibrahim Tchakala, Moustapha Sawadogo, Moussa Ouedraogo, Nassio Sory, Youssouf Sawadogo, Lamine Zerbo, Samuel Paré, and Mohamed Seynou
Industrial and agricultural activities generate wastewater rich in organic pollutants and threaten water resources. The city of Ouagadougou
is strongly confronted with this problem of wastewater discharged by some pollution sources, such as industries. This work aims to use ecological and
low-cost purification methods to remove organic pollu(...)
wastewater, pollution, clay, removal rate, batch mode, low-cost
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.
ARTICLE
Préparation, études vibrationnelle et électronique de complexes de la phtalocyanine d’or octasubstituée et leurs dérivés portant des ligands axiaux pyridine et pyridines substituées
Wend-Kuny Guy Aristide Nitiema, Lassané Tarpaga, Bertrand Ouemega, Mabinty Bayo-Bangoura, Yaovi Holade, Karifa Bayo
La phtalocyanine d’or octacyanée [AuPc(CN)8], la phtalocyanine d’or octacarboxylée [AuPc(COOH)8] et leurs dérivés portant des ligands axiaux pyridine (Py) et pyridines substituées (R-Py) ont été préparées et étudiées par spectrométries vibrationnelle et électronique. Les ligands utilisés sont : Py, 3MePy, 4MePy, 3HOPy, 4HOPy, 3ClPy, 4ClPy, 3CN(...)
phtalocyanine d’or octacyanée, phtalocyanine d’or octacarboxylée, pyridine, pyridine substituée, IR, UV-visible.
ARTICLE
Antiradical and Antidiabetic Potential of Newbouldia laevis (P. Beauv.) ex Bureau Leaf Extracts: Inhibition of α-Glucosidase Activity
Rawendé Sédégo, Bakouan Youssoufou, Téeda Hamidou Ganamé, Jules Yoda, Benjamin Ouédraogo, Bintou Sessouma, Karifa Bayo
This study aimed to evaluate the therapeutic potential of extracts from the leaves of Newbouldia laevis (P.
Beauv.) ex Bureau, a plant used in the management of diabetes. In this study, the different analyses focused on the anti-radical and anti-diabetic activities of selected extracts. Antidiabetic activity was studied by monitoring the inhi(...)
Newbouldia laevis, α-glucosidase, Antiradical, Anti-diabetic activity
ARTICLE
Antioxidant, Antifungal and Antitermite Activities of Residues from Hydrodistillation of Cymbopogon citratus, Eucalyptus camaldulensis and Mentha piperita
Assétou Sankara, Jean Claude Windéyolsidé Ouédraogo, Schémaéza Bonzi, Marie-France Thévenon, Yvonne Libona Bonzi-Coulibaly
Aromatic plant distillation produces residues rich in phenolic compounds known to be bioactive. In this context, residues from the hydrodistillation of Mentha piperita L., Cymbopogon citratus Stapf, and Eucalyptus camaldulensis Dehnh were chemically and biologically analyzed. The ethanol percentages (70%, 50%, and 30%) were evaluated by determ(...)
Biopesticide, Polyphenols, Flavonoids, Antiradical Capacity, Antifungal, Antitermite