Ahari M'hamed

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Verified

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• PhD
• Professor at Abdelmalek Essaâdi University

Analysis of the effectiveness of combining inorganic coagulants with chitosan and bentonite in the treatment of raw water, Sustainable Chemistry for the Environment, (2024) Abstract The production of drinking water often leads to the creation of a high residual concentration of aluminum when mineral salts are used. This concentration must be carefu...

Abstract The current research involves the development and preparation of two novel, non-toxic imidazopyridine-based Schiff base inhibitors, IMP 01 and IMP 02, using simple, cost-effective, and environmentally friendly methods. Characterization of the two compounds was carried out using advanced analytical techniques such as NMR (1H and 13C), FT-IR...

Morocco is a country rich in medicinal plants, many of which have been used for centuries in traditional medicine to treat various ailments, including diabetes. Herbal treatment is often used as an alternative to synthetic drugs because they may be more affordable and accessible. Diabetes is a chronic disease characterized by high blood sugar level...

In this study, we conduct a comparative investigation into the corrosion inhibition properties of two Schiff base compounds, namely 4,4′-((1E,1′E)-(ethane-1,2 diylbis(azaneylylidene))bis(methaneylylidene))diphenol (PSB5) and (1E,1′E)-N,N′-(ethane-1,2 diyl)bis(1-(4-nitrophenyl)methanimine) (PSB6), on mild steel in an acidic environment. The inhibito...

This study explores the in vitro antioxidant activity of three plants: Pistacia lentiscus, Mentha pulegium, and Tetraclinis articulata. Initially, we quantified the total polyphenol, flavonoid, and flavonol content in each extract. Subsequently, the antioxidant potential was assessed using DPPH radical scavenging, ferric reducing antioxidant power...

Beneficial cannabis use has sparked growing interest among researchers, leading to an increase in empirical studies exploring its phytochemistry and applications. However, understanding the overall research orientation remains limited. This study aims to bridge this gap by conducting a bibliometric analysis of 7841 documents published from 2012 to...

We are delighted to announce a Special Issue, entitled " Extraction, Separation, and Medicinal Analysis of Natural Products" A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Biological Processes and Systems" Impact factor 2.8 The submission deadline is 15 December 2024 and papers may be submitted immediately...

Our research employs a holistic methodology to assess the efficacy of a series of phenolic Schiff bases as corrosion inhibitors for mild steel in a 1 M HCl solution. Through complementary studies, we aim to unravel the corrosion inhibition mechanism by investigating neutral, protonated, and complex forms of inhibitors using advanced computational a...

Within Morocco's efforts to increase the value of cannabis, we investigated the 'Beldeya' cannabis sativa L plant, which is produced in the Ketama area of northern Morocco. In this investigation, we performed phytochemical screening and quantitative analyses of ethanol, chloroform, and hexane extracts from cannabis leaves. Additionally, we explored...

For millennia, various cultures have utilized cannabis for food, textile fiber, ethno-medicines, and pharmacotherapy, owing to its medicinal potential and psychotropic effects. An in-depth exploration of its historical, chemical, and therapeutic dimensions provides context for its contemporary understanding. The criminalization of cannabis in many...

The qualitative and quantitative analysis aims to identify secondary metabolites, including phenolic compounds, alkaloids, terpenes, and other substances commonly referred to as phytochemicals. Qualitative phytochemical screening relies on color and precipitation tests that indicate the presence or absence of a metabolite, while quantitative analys...

Imidazopyridine and its derivatives are essential heterocycles widely utilized in medicinal chemistry, natural products, and synthetic chemicals. The unique structural characteristics of the imidazopyridine ring facilitate their interaction with various enzymes and receptors through weak interactions, leading to a wide range of biological and pharm...

Medicinal plants serve as a significant source of bioactive molecules, with their utilization in the medical realm dating back to ancient times through herbal preparations. In Morocco, the utilization of plants remains integral to traditional medicine. Despite numerous studies documenting indigenous knowledge regarding plant use, scant attention ha...

Cannabis sativa subsp. sativa L. is an industrial plant that has gained importance due to its essential oil (EO), which has commercial, medical, and potential cosmetic applications. Despite its significance, the chemical constituents of the C. sativa EO cultivated in Morocco is not well understood. In this context, the current study aimed to define...

Tetraclinis articulata (Vahl) Masters (TA), a member of the Cupressaceae family, is frequently used in traditional medicine to treat various health problems in Al Hoceima Province. Our study aimed to determine the content of polyphenols and flavonoids, and to evaluate the biological antioxidant activities using DPPH and FRAP tests. At the same time...

This mini review delves into the critical need to effectively eliminate nitrates, nitrites, phosphates, and ammonium from wastewater to mitigate environmental pollution and uphold water quality standards. Stemming from various human activities like agricultural runoff, industrial processes, and municipal discharges, these pollutants pose significan...

Amoxicillin’s prevalence in aquatic environments, stemming from widespread medical usage, serves as a significant indicator of pharmaceutical contamination. Adsorption stands out as the preferred method for addressing this issue due to its simplicity, efficacy, practicality, and cost-effectiveness. This systematic review delves into peer-reviewed l...

The synthesis of bicyclic heterocycles, notably nitrogen-containing imidazopyridines, holds immense appeal due to their structural diversity and pivotal role in biological systems. These compounds are ubiquitously found in nature and are prized for their significance in both chemical and biological contexts. Imidazopyridine derivatives, among nitro...

The increasing incidence of fraud in the olive oil market, particularly through adulteration with cheaper oils, poses a major challenge for the industry. This study examines the effectiveness of fluorescence spectroscopy combined with chemometric tools as a method to detect and quantify olive oil adulteration. Chemical analyses were used to measure...

In the northern region of Morocco, specifically in the Province of Al Hoceima, the establishment of the Al Hoceima National Park (ANP) serves as a designated protected area. The primary purpose of this park is to promote the conservation, protection, and sustainable development of the diverse natural resources present. The ANP boasts a significant...

The imidazole nucleus represents a significant group of heterocyclic molecules with diverse significance in the modern world due to its exploration potential and various pharmacological applications. The relevance of imidazole and its derivatives has gained popularity in recent years, especially in the production of commercial drugs and the treatme...

Bentonite clay modified with cetyltrimethylammonium bromide (CTAB) has been investigated as an effective adsorbent for the removal of bisphenol A (BPA) and pentachlorophenol (PCP) from aqueous solutions. The adsorption performance of Bentonite-CTAB was evaluated by conducting batch adsorption experiments under different conditions. The adsorption i...

This study aims to investigate the practical application of Single Drop Micro Extraction (SDME) as an efficient and sustainable technique for determining endosulfan and its metabolites in water. Experiments were performed with samples collected from different areas in the Loukkos region, Morocco, using a Finnigan MAT GCQ Model, equipped with a 30-m...

Introduction: Lavandula dentata L. (LD) is a well-known aromatic and medicinal plant celebrated for its abundant essential oil (EO) with applications in aromatherapy, perfumery, and traditional medicine. The chemical composition and biological properties of LD EO can vary based on factors like harvesting period, and cultivation location. Methods: G...

Our research aims to investigate the impact of halogens on the effectiveness of corrosion inhibitors for mild steel in a 1 M HCl solution, employing a holistic approach. Through complementary studies, we will elucidate the corrosion inhibition mechanism by examining neutral, protonated, and complex forms of inhibitors using advanced computational a...

Objective ➢ This study aims to explore the practical application of Single Drop Micro Extraction (SDME) as a sustainable technique for the determination of endosulfan and its metabolites in water.

This study aims to demonstrate the efficacy of both raw and pure bentonite as a coagulant/adju-vant in treating raw water from the Al Hoceima plant. The focus of this study lies in the evaluation of two distinct coagulant combinations with bentonite: aluminum sulfate/bentonite and chitosan/ bentonite. Additionally, an assessment is made on the cont...

This study investigated mild steel corrosion inhibition using four Schiff bases in a theoretical framework. The study used statistical analysis to relate the experimental inhibitor's efficacy to theoretical data, revealing the corrosion inhibition process. Density functional theory (DFT) was used to assess the global reactivity of the four inhibito...

In the present study, we have investigated the effect of aqueous extracts of Capparis spinosa leaves (AECSL), buds (AECSB), and fruits (AECSF) on Pb2+ ions. The carbon paste electrode modified with 10% 2-benzimidazole thiol (CPE-10% BIT) is used to reveal the electrochemical behavior of Pb2+ in the presence of the aqueous extract of Capparis spinos...

In the present study, we have investigated the effect of aqueous extracts of Capparis spinosa leaves (AECSL), buds (AECSB), and fruits (AECSF) on Pb 2+ ions. The carbon paste electrode modified with 10% 2-benzimidazole thiol (CPE-10% BIT) is used to reveal the electrochemical behavior of Pb 2+ in the presence of the aqueous extract of Capparis spin...

Background. Medicinal plants have long played an integral role in traditional healing systems and are crucial for meeting primary healthcare needs. This study aimed to investigate the use of medicinal plants in phytotherapy in the Ketama region of Northern Morocco. Methods. Ethnobotanical data and ancestral knowledge regarding plants were collected...

Pistacia lentiscus L. (PL) is a shrub belonging to the Anacardiaceae family, used in traditional medicine to treat various disorders in the Commune of Ajdir from Al Hociema province. The conducted study focused on determination of the polyphenols and flavonoids contents by spectrophotometric and in vitro evaluation of the antioxidant and anti-infla...

The primary objective of this research paper was to investigate the inhibitory effects of two new derivatives of Imidazopyridines, namely: (E)-N-(7-methyl-2-phenylimidazo[1,2-a]pyridin-3-yl)-1-(3-nitrophenyl)methanimine (N-Imid) and (E)-2-methoxy-4-(((7-methyl-2 phenylimidazo[1,2-a]pyridin-3-yl)imino)methyl)phenol (MH-Imid), on mild steel (MS) in 1...

Abstract: This work aimed to highlight the biological effects of Globularia alypum L., a medicinal plant widely used in phytotherapy. Globularia alypum L. is a plant used in traditional medicine in Morocco, the crude extracts prepared from the leaves were obtained using maceration in methanol, ethyl acetate, butanol, and water. The content of total...

Coagulation-flocculation is a significant process in water and wastewater treatment units that enhances treatment efficiency and cost-effectiveness. The coagulation process is a straightforward operation in water treatment with simple design and low energy consumption. Various chemicals are utilized to produce drinking water and treat wastewater, a...

This work aimed to highlight the biological effects of Globularia alypum L., a medicinal plant widely used in phytotherapy. Globularia alypum L. is a plant used in traditional medicine in Morocco, the crude extracts prepared from the leaves were obtained using maceration in methanol, ethyl acetate, butanol, and water. The content of total polyphen...

The present study was devoted to the investigation of the effect of NO2 and OH groups on the structure of two imidazopyridines, namely: (E)-N-(7-methyl-2-phenylimidazo[1,2-a]pyridin-3-yl)-1-(4-nitrophenyl)methanimine (Imid1) and (E)-4-(((7- methyl-2-phenylimidazo[1,2-a]pyridin-3-yl)imino)methyl)phenol (Imid2) on the corrosion inhibition efficiency...

The inhibition potential of two new 1D coordination polymers (CP), CuL2(NO3)2 (C1) and ZnL2(BF4)2 (C2), and their cryptate-bis(1H-1,2,4-triazole)-based ligand (L1) against the corrosion of mild steel (MS) in molar hydrochloric acid medium was evaluated by employing the weight loss (WL), potentiodynamic polarization (PDP), and electrochemical impeda...

For many industries, corrosion is a serious issue. For this reason, corrosion inhibitors are constantly being researched and developed to be utilized in a broad range of industrial applications. Thus, two phenolic Schiff bases named (E)-4-(1-((4-hydroxy-6-methylpyrimidin-2-yl)imino)ethyl)benzene-1,3-diol (PSB3) and (E)-4-((pyrimidin-2-ylimino)methy...

Batch measurements were conducted to assess the adsorption performance of raw and acid-activated bentonite with various operating conditions, including pH, initial Bisphenol A (BPA) concentration , contact time, and temperature. Fourier-transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy were used to study the struc...

A simple, solvent-free, and field-compatible approach to sample preparation is provided by the basic process known as solid-phase micro extraction (SPME). The aim of this study was to improve the circumstances under which triazines were extracted from aqueous matrices. The complex technique enabled the detection of the analytes in the water at a ph...

The composition of leachates is very variable and rich in toxic compounds, which requires treatment before discharge into the natural environment in order to avoid their impact on the environment and/or human health and to comply with the requirements of regulatory discharge standards in the natural environment. Among the parameters indicating poll...

The present study was devoted to the investigation of the effect of NO 2 and OH group in the structure of two imidazopyridine, namely: (E)-N-(7-methyl-2-phenylimidazo[1,2-a]pyridin-3-yl)-1-(4-nitrophenyl)methanimine (Imid1) and (E)-4-(((7-methyl-2-phenylimidazo[1,2-a]pyridin-3-yl)imino)methyl)phenol (Imid2) on the corrosion inhibition efficiency of...

Abstract Batch measurements were conducted to assess the adsorption performance of raw and acid-activated bentonite with various operating conditions, including pH (3-11), initial PCP concentration (30-1000 mg/l), contact time (10-180 min), and temperature (25-65 °C). Fourier Transform Infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and sca...

The leachate contains various types of organic and inorganic matter which can pollute aquatic environments if they are not properly treated. The choice and the efficiency of treatment techniques depend on the characteristics of the leachate, these characteristics change from one region to another and according to time and seasons. The objective of...

Corrosion is among the challenges most industries face. Corrosion inhibitors are developed to fix the issues of corrosion in these industries. For this reason, the corrosion inhibitive properties on mild steel (MS) of two phenolic Schiff bases named (E)-4-(1-((3-hydroxyphenyl)imino)ethyl)benzene-1,3-diol (PSB1) and (E)-4-(1-(pyridin-2 ylimino)ethyl...

Emerging organic micropollutants, such as bisphenol A (BPA), have raised concerns about their negative impact on human health and ecological safety. This review article aims to demonstrate and highlight recent advances in adsorption applications for bisphenol A, a toxic environmental pollutant commonly found in wastewater. There are many reasons to...

Due to population growth and the intensification of economic activity, the production of solid waste is constantly increasing in Morocco [1]. Several programs consist of the establishment of controlled landfills and the rehabilitation of uncontrolled landfills. The impact of landfilling is the production of liquid effluents rich in organic, mineral...

Solid phase microextraction (SPME) is a simple technique that addresses the need for a fast, solvent-free, and field compatible sample preparation method. The aim of this study was to optimize the extraction conditions of triazines from water matrices. The worked-out procedure allowed determining the analytes in water on the physiological level. Us...

The Al Hoceima region possesses an important floristic diversity especially in terms of medicinal and aromatic plants. The aim of this work was to identify the medicinal and aromatic plants (MAPs) used by the population in order to enhance their value. To identify the MAPs used in the Al Hoceima National Park, ethnobotanical investigation questionn...

Cet ouvrage décrit une nouvelle approche de synthèse d’hétérocycliques azotés optiquement purs à partir d’amines insaturées. Les composés hétérocycliques sont classés parmi les structures naturelles et synthétiques les plus utilisées dans l'industrie pharmaceutique. La stratégie repose sur la génération d’un site électrophile, selon une séquence hy...

The objective of this work is to observe the effectiveness of bentonite as a coagulation adjuvant on water treatment quality at Ait Baha station. In our case, bentonite is used as a source of turbidity and is not an adsorbent. Jar tests were performed on raw water samples of low turbidity according to the approach applied in the laboratory. The per...

Generally, grafting alkylated chains onto cellulose backbone modifies its physicochemical properties strongly, and the variation in the hydrophobicity of the cellulose causes significant modifications of these superficial characteristics. In this sense, this study highlighted the effect of the hydrophobicity-hydrophilic balance brought by the level...

To quantify the diffusion coefficients of p-cresol, 2,4-dimethylphenol (2,4-DMP), 4-chlorophenol (4-CP), 2,4-dichlorophenol (2,4-DCP), 2,4,6-trichlorophenol (2,4,6-DCP), 2,3,5,6-tetrachlorophenol (2,3,5,6-TeCP), and pentachlorophenol (PCP), in-laboratory tests were conducted of diffusion through a needle-punched geosynthetic clay liner (GCL) contai...

The experimental results obtained regarding diffusion through a high density polyethylene geomembrane of phenol, o-cresol, p-cresol, 2,4-xylenol, 3,4-xylenol, 2-chlorophenol, 4-chlorophenol, 2,4-dichlorophenol, 2,4,6-trichlorophenol, 2,3,4,6-tetrachlorophenol, 2,3,5,6-tetrachlorophenol, pentachlorophenol and bisphenol A are presented. Partitioning...

The aim of this paper is to present the experimental results obtained regarding the adsorption on various constitutive geotextiles and bentonites of geosynthetic clay liners of phenol, o-cresol, p-cresol, 2-chlorophenol, 4-chlorophenol, 2,4-dimethylphenol, 3,4-dimethylphenol, 2,4-dichlorophenol, 2,4,6-trichlorophenol, 2,3,4,6-tetrachlorophenol, 2,3...

A straightforward and flexible method for the preparation of ligands based on the pyrrolidine scaffold is presented. The synthetic strategy involves a diastereoselective allylation of phenylglycinol-derived imines, followed by a cyclization promoted by a hydrozirconation/halogenation sequence. Enantioselectivities of up to 84% ee in the asymmetric...

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

A simple synthesis of enantiomerically pure piperidine esters is described, offering a straightforward access to the trans-2,3-disubstituted piperidine skeleton which is present in a broad range of biologically active compounds.

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Optically active N-heterocycles with four-, five-, or six-membered rings can be prepared from unsaturated secondary amines, by using a one-pot hydrozirconation/iodination sequence as the key step. The presented method allows the preparation of 2-substituted pyrrolidines enantiomeric to those previously obtained from N-allyloxazolidines. The two app...