A5083623384- Essential Oils and Antimicrobial Activity
- Porphyrin and Phthalocyanine Chemistry
- Allelopathy and phytotoxic interactions
- Phytochemistry and Biological Activities
- TiO2 Photocatalysis and Solar Cells
- Organic Electronics and Photovoltaics
- Weed Control and Herbicide Applications
- Edible Oils Quality and Analysis
- Photodynamic Therapy Research Studies
- Phytochemicals and Antioxidant Activities
- Analytical chemistry methods development
- Insect Pest Control Strategies
- Electrochemical Analysis and Applications
- Crystallization and Solubility Studies
- Nanoplatforms for cancer theranostics
- Luminescence and Fluorescent Materials
- Conducting polymers and applications
- Advanced Photocatalysis Techniques
- X-ray Diffraction in Crystallography
- Catalytic C–H Functionalization Methods
- Transition Metal Oxide Nanomaterials
- Catalytic Alkyne Reactions
- Photochromic and Fluorescence Chemistry
- Analytical Chemistry and Chromatography
- Synthesis and Properties of Aromatic Compounds
King Abdulaziz University
2019-2024
University of Carthage
2016-2024
University of Jeddah
2019
Tunis El Manar University
2018-2019
Virtual University of Tunis
2014-2018
Tunis University
2018
Laboratoire COBRA
2017
Institut Supérieur du Sport et de l’Éducation Physique de Sfax
2007-2015
Laboratoire de Chimie
2013-2015
Institut Charles Gerhardt Montpellier
2015
Helicene-bis-diketopyrrolopyrrole derivatives display strong circular dichroism and red circularly polarized emission originating from exciton coupling chirality.
π-Helical push-pull dyes were prepared and their (chir)optical properties investigated both experimentally computationally. Specific fluorescent behaviour of bis-substituted system was observed with unprecedented solvent effect on the intensity circularly polarized luminescence (CPL, dissymmetry factor decreasing from 10-2 to 10-3 an increase in polarity) that linked a change symmetry chiral excited state suppression interbranched exciton coupling. The results highlight potential CPL...
Sixteen wild Foeniculum vulgare Mill. populations native to Tunisia were investigated based on their phenolic profile of methanol extracts seeds. The antioxidant potential was evaluated using four model systems such us total capacity (TAC), DPPH-radical scavenging activity, ABTS test and reducing power assay (RPA). Results showed significant variations yields, polyphenol content (TPC), flavonoid (TFC) CTC (condensed tannin content). LC-MS analysis revealed the identification 26 compounds....
This study explores the novel use of mixed cultures microalgae-
The chemical composition of the essential oils Melaleuca armillaris Sm., styphelioides Sm. and acuminata F. Muell., collected in Tunisia, was studied by means GC GC-MS analysis. In all, 46 compounds were identified, 38 for M. armillaris, 20 eight styphelioides, respectively. presence a sesquiterpenic fraction (52.2%) characterized oil from armillaris; sthypheliodes rich methyl eugenol, phenolic compound (91.1%), while is mainly constituted oxygenated monoterpenoids (95.6%). evaluated their...
The chemical composition of essential oils isolated by hydrodistillation from the needles Tunisian Pinus nigra L. subsp. laricio was analyzed GC and GC/MS. 27 compounds were identified, representing 97.9% total oil, which found to be rich in oxygenated diterpenes (38.5%) particularly manool oxide (38%) sesquiterpene hydrocarbons (41.4%) that included germacrene D (16.7%), δ-cadinene (9%) (E)-caryophyllene (8.9%). Results herbicidal effects oil when tested on Phalaris canariensis L.,...
Sustainable building practices are a response to environmental issues. Businesses and industries assessing how their activities affect the environment. The architecture, engineering construction (AEC) have significant impacts on environment economy, while industry is considered one of largest contributors greenhouse gas (GHG) emissions has, therefore, been highlighted by researchers as key area intervention with great potential reduce impacts. This paper critically reviews evaluates current...
A magnetite chlorodeoxycellulose/ferroferric oxide (CDC@Fe3O4) heterogeneous photocatalyst was synthesised via treated and modified cotton in two steps. The designed nanocomposites were characterised by FTIR, TGA, XRD, SEM, VSM analyses. Fenton-photocatalytic decomposition efficiency of the magnetic catalyst evaluated under visible sunlight using Methyl Orange (MO) as a model organic pollutant. impacts several degradation parameters, including light source, load, irradiation temperature,...
Chemical composition, antioxidant, and antimicrobial activities of essential oils from 16 wild edible Tunisian Foeniculum vulgare populations were evaluated. The oil yields fennel seeds ranged 1.2 to 5.06%. GC-MS analysis revealed the presence 20 compounds. Except one sample, different locations mainly composed phenylpropanoid major compound was estragole with a percentage ranging 66.09 85%. phenolic content varied significantly among which could explain high variation in antiradical...
Chiral diketopyrrolopyrrole (DPP)-helicene polymers were synthesized to develop efficient red circularly polarized (CP) light emitters. These original chiral dyes display intense electronic circular dichroism (ECD) and CP luminescence (CPL) in the far-red spectral region owing presence of excitonic coupling between achiral DPPs within environment polymeric structure. This work affords an interesting example illustrating potential π-conjugated helical for optoelectronic applications.
Photodynamic therapy is a treatment modality of cancer based on the production cytotoxic species upon light activation photosensitizers. Zinc phthalocyanine photosensitizers bearing four or eight bulky 2,6-di(pyridin-3-yl)phenoxy substituents were synthesized, and pyridyl moieties methylated. The quaternized derivatives did not aggregate at all in water retained their good photophysical properties. High photodynamic activity these phthalocyanines was demonstrated HeLa, MCF-7, EA.hy926 cells...
In this study, we investigated the potential of palladium tetrakis (imidazole) phthalocyanine (PdPc(Imz)4) for use as an organic semiconductor improving photovoltaic performance. order to get more information about prevailing model conduction mechanism (correlated barrier hopping (CBH)) PdPc(Imz)4, electrical impedance measurements were performed at different temperatures and obtained data simulated by Kohlraush Williams Watt (KWW) approach. Theoretical studies (density functional theory...
This study is designed to examine the chemical composition of hydrodistillated essential oils obtained from Cymbopogon citratus ( DC) Stapf, Eucalyptus cladocalyx, Origanum vulgare L, and Artemisia absinthium L. GC GC-MS analysis four has shown a determination 18 different components representing 89.3 % total oil for Stapf that are neral (29.2 %) geranial (18.2 %), followed by α-pinene (4.8 myrcene (3.9 which determined as major compounds oil; cladocalyx there 29 79.0 oil, spathulenol (21.6...
The essential oil composition of Juniperus phoniceae, Pistacia vera and terebinthus was analyzed by GC GC–MS analysis their bioherbicidal activity evaluated against four weeds species, Sinapis arvensis, Trifolium campestre (dicots), Lolium rigidium Phalaris canariensis (monocots). Qualitative quantitative differences between oils were observed. All rich in monoterpene hydrocarbons, the major constituents J. phoniceae α-pinene (16-19%), α- terpinene (32-41%) limonene (4-25%). Tested strongly...
The aims of this research were to determine the chemical composition essential oil three Tunisian plants and evaluate their biological activity against eggs, larvae, adult insects Ectomyelois ceratoniae Zeller.The oils extracted from leaves Thymus capitatus (L.) Hoffmanns.& Link, Rosmarinus officinalis L. needles Pinus halepensis Mill.were analyzed by gas chromatography-mass spectrometry; 34, 16, 56 constituents identified, respectively.The major (Z)-caryophyllene (23.8%), β-myrcene (20.5%)...