Výsledky vyhledávání - "Alain, Chamayou"

Akademický článek

The Synthesis of 2′-Hydroxychalcones under Ball Mill Conditions and Their Biological Activities

Autor: Imen Abid, Wassim Moslah, Sandrine Cojean, Nicolas Imbert, Philippe M. Loiseau, Alain Chamayou, Najet Srairi-Abid, Rachel Calvet, Michel Baltas

Publikováno v: Molecules, Vol 29, Iss 8, p 1819 (2024)

Chalcones are polyphenols that belong to the flavonoids family, known for their broad pharmacological properties. They have thus attracted the attention of chemists for their obtention and potential activities. In our study, a library of compounds fr

Externí odkaz: https://doaj.org/article/a215fd4116c84482854ed5217bac3c76

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Akademický článek

Surface Analysis of Silica Gel Particles after Mechanical Dry Coating with Magnesium Stearate

Autor: Laurence Galet, Yamina Ouabbas, Alain Chamayou, Philippe Grosseau, Michel Baron, Gérard Thomas

Publikováno v: KONA Powder and Particle Journal, Vol 28, Iss 0, Pp 209-218 (2014)

A dry coating technique has been used to change the surface properties of silica gel particles (d50=55μm) by coating with different mass ratios of magnesium stearate - MgSt2 (d50=4.6μm): 1%, 5%, 15% and 30%. The dry coating experiments were perform

Externí odkaz: https://doaj.org/article/fa92b808012a4e6daf31a4216fb5f04c

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Akademický článek

Comparative Study of Two Processes to Improve the Bioavailability of an Active Pharmaceutical Ingredient: Kneading and Supercritical Technology

Autor: Jacques Fages, Elisabeth Rodier, Alain Chamayou, Michel Baron

Publikováno v: KONA Powder and Particle Journal, Vol 25, Iss 0, Pp 217-229 (2014)

Two processes have been developed for the enhancement of bioavailability of a poorly-soluble active substance, Eflucimibe by associating it with γ-CD (γ-cyclodextrin).In the first process (process a), Eflucimibe was added to an aqueous slurry of CD

Externí odkaz: https://doaj.org/article/89a36a49ca994338add94704e90b6b21

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Elucidation of the Diels–Alder Reaction Kinetics between Diphenylfulvene and Maleimide by Mechanochemistry and in Solution

Autor: Christiane André-Barrès, Michel Baron, Alain Chamayou, Lori Gonnet, Michel Baltas, Brigitte Guidetti, Tohru Sato, Rachel Calvet, Jean-Claude Micheau

Publikováno v: ACS Sustainable Chemistry & Engineering
ACS Sustainable Chemistry & Engineering, American Chemical Society, 2021, 9 (12), pp.4453-4462. ⟨10.1021/acssuschemeng.0c08314⟩
ACS Sustainable Chemistry & Engineering, 2021, 9 (12), pp.4453-4462. ⟨10.1021/acssuschemeng.0c08314⟩

International audience; The Diels–Alder reaction kinetics between diphenylfulvene and maleimide using mechanochemistry and in liquid state is described. This reaction was carried out in solid state using a modified vibratory ball-mill with temperat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c68264b13ff10797b6da1249949a3300
https://doi.org/10.1021/acssuschemeng.0c08314

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Génie de la Réaction Chimique : les réacteurs homogènes

Autor: Cesari Laetitia, alain chamayou, Patrick Cognet, Marie Debacq, Éric Schaer, Stéphane Vitu

Publikováno v: HAL

Le Génie de la Réaction Chimique (GRC) est une branche du génie des procédés qui traite des méthodes de mise en œuvre rationnelle des transformations de la matière et des appareils dans lesquels sont conduites les réactions : les réacteurs.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::ca9bf4bf2f70f975451445b8011f2d60
https://hal.archives-ouvertes.fr/cel-01487790v3

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Akademický článek

High energy dry coating mixing: Elements on velocities, temperatures and melting

Autor: Lecoq, Olivier, Laurence, Galet, Alain, Chamayou

Publikováno v: In Advanced Powder Technology 2011 22(2):184-189

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Akademický článek

Mechanochemical Synthesis and Biological Evaluation of Novel Isoniazid Derivatives with Potent Antitubercular Activity

Autor: Paulo F. M. Oliveira, Brigitte Guidetti, Alain Chamayou, Christiane André-Barrès, Jan Madacki, Jana Korduláková, Giorgia Mori, Beatrice Silvia Orena, Laurent Roberto Chiarelli, Maria Rosalia Pasca, Christian Lherbet, Chantal Carayon, Stéphane Massou, Michel Baron, Michel Baltas

Publikováno v: Molecules, Vol 22, Iss 9, p 1457 (2017)

A series of isoniazid derivatives bearing a phenolic or heteroaromatic coupled frame were obtained by mechanochemical means. Their pH stability and their structural (conformer/isomer) analysis were checked. The activity of prepared derivatives agains

Externí odkaz: https://doaj.org/article/9f6c08ce7bc345f7b29d36e415a22d7c

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Influence of different wet milling on the properties of an attapulgite clay, contribution of inverse gas chromatography

Autor: Rachel Calvet, Alain Chamayou, Boualem Hamdi, L. Boudriche

Publikováno v: Powder Technology
Powder Technology, Elsevier, 2021, 378, PART A, pp.29-39. ⟨10.1016/j.powtec.2020.09.045⟩

International audience; An experimental study, using size measurements, X-ray diffraction (XRD), scanning electron microscopy (SEM) and inverse gas chromatography at infinite dilution (IGC-ID) and finite concentration (IGC-FC) conditions, has been ca

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f0444195726461314e6d903550ecdd1
https://hal-mines-albi.archives-ouvertes.fr/hal-02948072/document

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Study of the Two Steps and One-Pot Two-Step Mechanochemical Synthesis of Annulated 1,2,4-Triazoles

Autor: Christophe Menendez, Alain Chamayou, Rachel Calvet, Brigitte Guidetti, Michel Baron, Lori Gonnet, Michel Baltas, Christiane André-Barrès

Publikováno v: ACS Sustainable Chemistry & Engineering
ACS Sustainable Chemistry & Engineering, American Chemical Society, 2020, 8 (8), pp.3114-3125. ⟨10.1021/acssuschemeng.9b05886⟩
ACS Sustainable Chemistry & Engineering, 2020, 8 (8), pp.3114-3125. ⟨10.1021/acssuschemeng.9b05886⟩

International audience; The mechanochemical synthesis of 1,2,4-triazoles by using a planetary ball-mill is studied starting from hydralazine hydrochloride. Excellent conditions were found for achieving total conversion to intermediate hydrazones in a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6df334e6d42e97661b18ca6f863faf3b
https://hal-mines-albi.archives-ouvertes.fr/hal-02519781/document

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Physicochemical characterization of a diatomaceous upon an acid treatment: a focus on surface properties by inverse gas chromatography

Autor: Tassadit Benkacem, Alain Chamayou, Boualem Hamdi, Henri Balard, Rachel Calvet

Publikováno v: Powder Technology
Powder Technology, Elsevier, 2016, 294, p. 498-507. ⟨10.1016/j.powtec.2016.03.006⟩

International audience; Natural diatomite from Sig/Algeria was treated with 0.5, 1.0, 3.0 and 5.0 M nitric acid solutions for 2 h under re flux at 333 K in order to improve its performance as support of catalyst. The purified silica powders obtained

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a0c3720e90520041eb67df4846c4dd5
https://doi.org/10.1016/j.powtec.2016.03.006

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