Polymerization of Ethylene Glycol Dimethacrylate (EGDM), Using An Algerian Clay as Eco-catalyst (Maghnite-H+ and Maghnite-Na+)

archive, Publication Scientifique, Publication Scientifique Division Santé, Revue de Press

Sara Haoue1, Hodhaifa Derdar1, 2,*, Mohammed Belbachir1, Amine Harrane1,3

1Laboratoire de Chimie des Polymères, Département de Chimie, FSEA, Université Oran1 Ahmed Ben Bella, BP N° 1524 El M’Naouar, 31000 Oran, Algeria.

2Centre de Recherche Scientifique et Technique en Analyses Physico-Chimiques (CRAPC), BP 10 384, Siège ex-Pasna Zone Industrielle, Bou-Ismail CP 42004, Tipaza, Algeria.

3Dept. of Chemistry, FSEI, University Abdelhamid Ibn Badis Mostaganem, Algeria.

Abstract

In this paper we have explored a novel and green method to synthesis and polymerize ethylene glycol dimethacrylate (EGDM). This technique consists on using Maghnite (Algerian clay) as a green catalyst to replace toxic catalysts. The Algerian clay has been modified using two ion exchange process to obtain Maghnite-H+ (proton exchanged process) and Maghnite-Na+ (sodium exchanged process). Synthesis ex-periments of EGDM and Poly (EGDM) are performed in bulk respecting the principles of green chemis-try. The structure of the obtained monomer and the obtained polymer was confirmed by FT-IR, 1H-NMR and 13C-NMR, where the methacrylate end groups are clearly visible. The presence of unsaturat-ed end group in the structure of monomer was confirmed by UV-Visible analysis. Thermogravimetric Analysis (TGA) was used to study the thermal stability of these obtained products. Copyright © 2020 BCREC Group. All rights reserved

Keywords: Ethylene glycol dimethacrylate; Green catalyst; Maghnite-H+; Maghnite-Na+; Anionic polymerization How to Cite: Haoue, S., Derdar, H., Belbachir, M., Harrane, A. (2020). Polymerization of Ethylene Glycol Dimethacrylate (EGDM), Using An Algerian Clay as Eco-catalyst (Maghnite-H+ and Maghnite-Na+). Bulletin of Chemical Reaction Engineering & Catalysis, 15(1), 221-230 (doi:10.9767/bcrec.15.1.6297.221-230)

https://doi.org/10.9767/bcrec.15.1.6297.221-230

Zn-M-CO3 Layered Double Hydroxides (M=Fe, Cr, or Al): Synthesis, Characterization, and Removal of Aqueous Indigo Carmine

archive, Documentation, Publication Scientifique, Publication Scientifique Division Santé, Revue de Press

Zn-M-CO3 Layered Double Hydroxides (M=Fe, Cr, or Al): Synthesis, Characterization, and Removal of Aqueous Indigo Carmine

Salima Bouteraa1*, Fatiha Boukraa Djelllal Saiah1, Sarah Hamouda1,2,
Nourredine Bettahar1
1Laboratory of Inorganic Materials Chemistry and Application, University of Sciences and Technology of Oran – USTO BP. 1505 Oran, Algeria.
2Center of Scientific Research and Technique in Physicochemical Analysis (CRAPC), Bou-Smail, Tipaza, Algeria.

Abstract
In this approach, Zn-M+3 layered double hydroxides (LDHs) with M+3 = Fe, Cr, or Al were synthesized by the co-precipitation method from the aqueous solution at a constant solution pH. The as-synthesized samples were char-acterized by XRD analysis, FTIR spectra, BET techniques and simultaneous thermogravimetric-differential scan-ning calorimetry (TGA/DSC). XRD analysis showed that Zn-Fe-CO3 had the greatest lattices parameters. BET sur-face area of Zn-Fe-CO3 was calculated as 52.24 m2.g-1 and was higher than Zn-Cr-CO3 and Zn-Al-CO3 with 46.70 and 49.99 m2.g-1, respectively. The FTIR spectra clearly confirmed the presence of carbonate anions in the struc-ture of the LDHs. Adsorption experiments for Indigo Carmine (IC), as the main model organic pollutant in this study from aqueous solution onto synthetized samples were carried out in terms of solution pH, contact time and initial dye concentration. Experimental results indicate that the capacity of dye uptake augmented rapidly within the first 15, 40, and 55 minuts for Zn-Fe-CO3, Zn-Cr-CO3 and Zn-Al-CO3 respectively and then stayed practically the same regardless of the concentration. Adsorption kinetics studies revealed that the adsorption process followed pseudo-second order kinetics model instead of a pseudo-first-order model. The adsorption isotherm data follow the Langmuir equation in which parameters are calculated. The maximum Langmuir monolayer adsorption capacities were 94.87, 21.79, and 66.71 mg.g-1 for Zn-Fe-CO3, Zn-Cr-CO3, and Zn-Al-CO3, respectively. The adsorption capaci-ties were slightly influenced by the pH variations from 5 to 10, showing the advantage of using these materials in water treatments in a wide pH range. Finally, the IC removal is proven by the presence of IC functional groups in IR spectra and thermograms. TGA/DSC of Zn-Fe-CO3 obtained after removal of IC indicate that the LDHs stabiliz-es IC and delays the combustion of adsorbed molecules. Copyright © 2020 BCREC Group. All rights reserved
Keywords: Layered Double Hydroxide; Coprecipitation; Characterization; Adsorption; Indigo Carmine
How to Cite: Bouteraa, S., Saiah, F.B.D., Hamouda, S., Bettahar, N. (2020). Zn-M-CO3 Layered Double Hydrox-ides (M=Fe, Cr, or Al): Synthesis, Characterization, and Removal of Aqueous Indigo Carmine. Bulletin of Chemical Reaction Engineering & Catalysis, 15(1): 43-54 (doi:10.9767/bcrec.15.1.5053.43-54)

https://ejournal2.undip.ac.id/index.php/bcrec/article/view/5053

Analysis of experimental data of environmental cement prepared by fly ash of eggs shell and sand dune for reduction of carbon dioxid

archive, Bibliothèque, Publication Scientifique, Publication Scientifique Division Santé, Revue de Press

Author links open overlay panel

AbdelghaniBrahimiaMouradMeghachouaHichamAbbadaAbdelkaderRahmounibMohammedBelbachirbFatima ZohraZeggaicBachariKhaldounc

Abstract

In the recent years, the dominant cementitious materials have been industrial by products such as fly ash. This present data describes some of the cementitious products that are attracting attention in the global research community and the properties and characteristics of these materials that affect their performance such durability, mechanically properties and reduction of carbon dioxid (CO2). The present investigation deals with the chemical synthesis of cementitious material using fly ash of eggs shell rich in calcium(Ca) and sand dune(southern west of Algeria) rich in silica(SiO2).The composition of geopolymers synthesized are the most compressive resistant with a maximum stress of 49.71 MPa, the most flexible (E = 2.63 GPa) and the most ductile (εr = 65.42%).The characteristic properties of the chemically synthesized cementitious materials were analyzed by the chemical composition analysis XRF, XRD and SEM analyses.

https://www.sciencedirect.com/science/article/pii/S2352340920303012?via%3Dihub

Dataset for synthesis of conducting polymers nanocomposites based on aniline and 4-amino-benzylamine catalyzed by chromium (III) exchanged maghnite (Algerian MMT) via in situ polymerization

archive, Division Matériaux, Documentation, Publication Scientifique, Publication Scientifique Division Santé, Revue de Press

Dataset for synthesis of conducting polymers

nanocomposites based on aniline and

4-amino-benzylamine catalyzed by chromium

(III) exchanged maghnite (Algerian MMT) via in

situ polymerization

Fatima Zohra Zeggai a, b, Mohammed Belbachir b,

Benjamin Carbonnier c, Abdelkader Rahmouni b, *,

Bachari Kaldoun a

a Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques (CRAPC), BP 38Bou-Ismail-

RP, 42004, Tipaza, Algeria

b Polymer Chemistry Laboratory, Oran1 University Ahmed Benbella, BP 1524, El’Menouer, 31000, Oran,

Algeria

c Paris-Est University, UMR 7182. 2-8, F-94320, Thiais, France

https://www.researchgate.net/publication/338770226_Dataset_for_synthesis_of_conducting_polymers_nanocomposites_based_on_aniline_and_4-amino-benzylamine_catalyzed_by_chromium_III_exchanged_maghnite_Algerian_MMT_via_in_situ_polymerization?enrichId=rgreq-bc8c9c697a553a18dc3e99fea382a89e-XXX&enrichSource=Y292ZXJQYWdlOzMzODc3MDIyNjtBUzo4NTU1Mzg0OTc3NTcxODdAMTU4MDk4NzY4MTM3Nw%3D%3D&el=1_x_2&_esc=publicationCoverPdf
le Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques (CRAPC), à travers ses équipes de recherche, vous propose ses nouvelles molécules pour des éventuels tests contre le Covid-19:

le Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques (CRAPC), à travers ses équipes de recherche, vous propose ses nouvelles molécules pour des éventuels tests contre le Covid-19:

archive, Gallerie Photos, Publication Scientifique Division Santé, Revue de Press, Uncategorized, URADTE

⚕️En raison de la situation sanitaire en Algérie concernant l’épidémie causée par le Covid-19, et suite à l’instruction émanant de la Direction Générale de la Recherche Scientifique et du Développement Technologique (DGRSDT) et ce dans le cadre de la lutte contre ce véritable fléau, le Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques (CRAPC), à travers ses équipes de recherche, vous propose ses nouvelles molécules pour des éventuels tests contre le Covid-19:

  1. 2E-P: dérivé de la pipérazine;
  2. L1: dérivé de phenylisothiocyanate
  3. L3 et LPD: dérivés de dehydroacetic acid;
  4. LTA: dérivé de coumarine;
  5. OT48, OT52, OT55 et AL3: dérivés de coumarine;
  6. MS001, SCMBM, Extrait alcoolique,Composé de structure flavonolignan et Composé de structure sesquiterpene lactone: Extraits de plantes;

Des molécules de la même classe que la pipérazine et coumarine ont été utilisées dans le traitement de certains cancers et pathologies inflammatoires et infectieuses des voies respiratoires.

Bis(4-hydroxy-2H-chromen-2-one) Coumarin Induces Apoptosis in MCF-7 Human Breast Cancer Cells Through Aromatase Inhibition

Bis(4-hydroxy-2H-chromen-2-one) Coumarin Induces Apoptosis in MCF-7 Human Breast Cancer Cells Through Aromatase Inhibition

Publication Scientifique, Publication Scientifique Division Santé
LAMIA HAMDAN RAMDANI1,2⇑, OUALID TALHI1,3, CAROLINE DECOMBAT2, MARION VERMERIE2, ALEXANDRE BERRY2, ARTUR SILVA3, KHALDOUN BACHARI1, MARIE-PAULE VASSON2,4, LAETITIA DELORT2,* and FLORENCE CALDEFIE-CHÉZET2,5,* 

Author Affiliations

1-Scientific and Technical Research Center in Physico-Chemical Analysis (CRAPC), Tipaza, Algeria
2-Clermont Auvergne University, INRA, UNH, Human Nutrition unit, CRNH Auvergne, Clermont Ferrand, France
3-Organic Chemistry, Natural Products and Agrifood (QOPNA), Department of Chemistry & QOPNA, University of Aveiro, Aveiro, Portugal
4-Anticancer Center Jean-Perrin, Clermont Ferrand, France
5-CLARA, Lyon Auvergne Rhone Alpes canceropole, Lyon, France

Correspondence to: Lamia Hamdan Ramdani, Clermont Auvergne University, INRA, UNH, Human Nutrition Unit, CRNH Auvergne, F-63000 Clermont-Ferrand, France. Tel: +213 799423134, e-mail: lamia_pharm@yahoo.fr

Abstract

Aim: The present investigation aimed to examine the therapeutic potential of the new coumarin derivative bis(4-hydroxy-2H-chromen-2-one) coumarin (4HC) against breast cancer. Materials and Methods: For this purpose, the effects of 4HC treatment on the proliferation of MCF-7 breast cancer cells and on MCF-10a non-cancerous cells were evaluated using a fluorescent assay. Cell cycle distribution and apoptosis were measured by image cytometry. The expression level of aromatase (CYP19A1) and apoptosis-related genes were determined by real-time PCR. Results: MCF-7 mammary cancer cell proliferation was significantly decreased within 24 h after treatment with 4HC at 50 μM, while no effect was observed on the viability of MCF-10a non-cancerous mammary cells. 4HC also increased the percentage of the cells in the G2/M phase, inducing apoptosis. Real-time PCR revealed that 4HC induced MCF-7 mortality through an up-regulation of Bax and a down-regulation of Bcl-2, resulting in an increase in caspase-3 gene expression. The increased expression of apoptosis-related genes was accompanied by a decrease in CYP19A1 gene expression. Conclusion: 4HC selectively inhibits proliferation of MCF-7cells in vitro. Moreover, 4HC has inhibitory effects on aromatase gene expression and promoting effects on apoptosis, in MCF-7 cells.

Coumarin derivative Bis(4-hydroxy-2H-chromen-2-one) breast cancer cell proliferation cell cycle apoptosis aromatase inhibition MCF-7 breast cancer cells 

Received September 10, 2019.
Revision received October 11, 2019.
Accepted October 16, 2019.

Copyright© 2019, International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved