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Ścigalski P, Kosobucki P. Dendrimer Coated Silica as a Sorbent for Dispersive Solid-Phase Extraction of Select Non-Steroidal Anti-Inflammatory Drugs from Water. Molecules 2024; 29:380. [PMID: 38257293 PMCID: PMC10819187 DOI: 10.3390/molecules29020380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
Non-steroidal anti-inflammatory drugs (NSAIDs) have been recognized as a potentially serious threat to the natural environment. NSAIDs are popular painkillers, and the main pathway for them to reach natural water is via discharge from wastewater and sewage treatment plants. In order to monitor contamination caused by these drugs, as well as their impact on the environment, a new material based on Silica Gel 60, functionalized with a dendrimeric copolymer of methylamine and 1,4-butanediol diglycidyl ether (named MA-BDDE), was prepared. Initial physicochemical characterization of the MA-BDDE material was carried out using ATR FT-IR spectroscopy as well as solid-state carbon-13 NMR spectroscopy. Its effectiveness at NSAID extraction was evaluated by the application of five select drugs in dispersive solid-phase extraction (dSPE): aspirin, ketoprofen, naproxen, diclofenac and ibuprofen. This was followed by their simultaneous determination using the HPLC-UV/Vis system demonstrating good sensitivity, with limits of detection values within the 63-265 ng mL-1 range. A comparison of the sorption capacity of each pharmaceutical with unmodified base silica showed an at least tenfold increase in capacity after modification. Initial MA-BDDE application in a quick, low-waste extraction procedure of those select NSAIDs from spiked surface water samples yielded promising results for its use as a sorbent, as recovery values of analytes adsorbed from various samples were found to exceed 72%.
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Affiliation(s)
- Piotr Ścigalski
- Department of Food Analysis and Environmental Protection, Faculty of Chemical Technology and Engineering, Bydgoszcz University of Science and Technology, Seminaryjna 3, 85-326 Bydgoszcz, Poland;
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2
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Blilid S, Boundor M, Katir N, El Achaby M, Lahcini M, Majoral JP, Bousmina M, El Kadib A. Expanding Chitosan Reticular Chemistry Using Multifunctional and Thermally Stable Phosphorus-Containing Dendrimers. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Sara Blilid
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
- IMED-Lab, Faculty of Sciences and Technologies, Cadi Ayyad University, Avenue Abdelkrim Elkhattabi, B.P. 549, 40000 Marrakech, Morocco
| | - Mohamed Boundor
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
| | - Nadia Katir
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
| | - Mounir El Achaby
- Mohammed VI Polytechnic University (UM6P), Lot 660−Hay Moulay Rachid, 43150 Benguerir, Morocco
| | - Mohammed Lahcini
- IMED-Lab, Faculty of Sciences and Technologies, Cadi Ayyad University, Avenue Abdelkrim Elkhattabi, B.P. 549, 40000 Marrakech, Morocco
- Mohammed VI Polytechnic University (UM6P), Lot 660−Hay Moulay Rachid, 43150 Benguerir, Morocco
| | - Jean Pierre Majoral
- Laboratoire de Chimie de Coordination (LCC), CNRS, 205 Route de Narbonne, 31077 Toulouse, France
| | - Mosto Bousmina
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
| | - Abdelkrim El Kadib
- Euromed Research Center, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknes, Rond-point de Bensouda, 30070 Fès, Morocco
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3
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Laird M, Herrmann N, Carcel C, Trens P, Oliviero E, Toquer G, Le Parc R, Bantignies JL, Bartlett JR, Wong Chi Man M. Mesoporous organosilicas with thiol functionalised pores: multifunctional dendrimers as sacrificial building block and template. NANOSCALE 2022; 14:15617-15634. [PMID: 36070553 DOI: 10.1039/d2nr03097g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The synthesis of multifunctional poly(amidoamine) (PAMAM)-based dendrimers containing a cleavable disulfide linker within each arm of the dendrimer, together with condensable triethoxysilyl groups on the periphery of the dendrimer, is described. The dendrimers were mixed with 1,4-bis(triethoxysilyl)benzene and subsequently transformed into silsesquioxane gels or periodic mesoporous organosilicas (PMOs) to generate materials with dendrimers covalently embedded within the interior of the silsesquioxane networks. Subsequent treatment of the gels with dithiothreitol enabled the core of the dendrimers to be selectively cleaved at the disulfide site, thus generating thiol functions localised within the pores. The effect of different dendrimer generations on the reactivity of the pendant thiol functions was probed by impregnation with gold salts, which were reduced to obtain gold nanoparticles within the pore networks of the gels and PMOs. The gels yielded polydisperse gold nanoparticles (2 to 70 nm) with dimensions modulated by the generation of the dendrimer, together with well-defined gold/thiolate clusters with Au⋯S distances of 2.3 Å. Such clusters were also observed in the PMO system, together with monodispersed gold nanoparticles with diameters comparable to that of the organised pores in the PMO. The role of surface functionalisation in controlling the formation of gold clusters and/or nanoparticles is discussed.
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Affiliation(s)
- Mathilde Laird
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, France.
| | | | - Carole Carcel
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, France.
| | - Philippe Trens
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, France.
| | | | | | - Rozenn Le Parc
- Laboratoire Charles Coulomb (L2C), CNRS-Univ. Montpellier, Montpellier, France
| | | | - John R Bartlett
- Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia.
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4
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Lu YC, Hsu HF, Lai LL. Unconventional Approaches to Prepare Triazine-Based Liquid Crystal Dendrimers. NANOMATERIALS 2021; 11:nano11082112. [PMID: 34443941 PMCID: PMC8399522 DOI: 10.3390/nano11082112] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/13/2021] [Accepted: 08/17/2021] [Indexed: 01/14/2023]
Abstract
Most triazine-based liquid crystalline (LC) dendrimers reported thus far are the main-chain LC macromolecules with long flexible chains at their periphery and attached to internal rigid or semi-rigid frameworks. Their formation of mesogenic phases often depends on the intermolecular face-to-face π-π interactions between dendritic molecules, which are unusual. Their mesogenic phases can also be formed by incorporation of mesogenic units to the dendritic skeletons through long flexible chains, as most side-chain LC dendrimers, in which the peripheral mesogenic units generally play the important roles. For main-chain triazine-based dendrimers, their morphology is maintained by restricted freedom of rigid or semi-rigid connecting units, and their formations of LC phases are therefore not straightforward to be controlled. In this review, we thus describe modulating of the intermolecular face-to-face π-π interactions between the triazine-based dendritic molecules, with the aim of forming LC phases through molecular design.
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Affiliation(s)
- Yao-Chih Lu
- Department of Applied Chemistry, National Chi Nan University, No. 1 University Rd., Puli, Nantou 545, Taiwan;
| | - Hsiu-Fu Hsu
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City 251, Taiwan;
| | - Long-Li Lai
- Department of Applied Chemistry, National Chi Nan University, No. 1 University Rd., Puli, Nantou 545, Taiwan;
- Correspondence:
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5
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Sam M, Dekamin MG, Alirezvani Z. Dendrons containing boric acid and 1,3,5-tris(2-hydroxyethyl)isocyanurate covalently attached to silica-coated magnetite for the expeditious synthesis of Hantzsch esters. Sci Rep 2021; 11:2399. [PMID: 33504833 PMCID: PMC7840758 DOI: 10.1038/s41598-020-80884-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 12/30/2020] [Indexed: 01/30/2023] Open
Abstract
A new multifunctional dendritic nanocatalyst containing boric acid and 1,3,5-tris(2-hydroxyethyl)isocyanurate covalently attached to core-shell silica-coated magnetite (Fe3O4@SiO2@PTS-THEIC-(CH2)3OB(OH)2) was designed and properly characterized by different spectroscopic or microscopic methods as well as analytical techniques used for mesoporous materials. It was found that the combination of both aromatic π-π stacking and boron-oxygen ligand interactions affords supramolecular arrays of dendrons. Furthermore, the use of boric acid makes this dendritic catalyst a good choice, from corrosion, recyclability and cost points of view. The catalytic activity of Fe3O4@SiO2@PTS-THEIC-(CH2)3OB(OH)2, as an efficient magnetically recoverable catalyst, was investigated for the synthesis of polyhydroacridines (PHAs) as well as polyhydroquinolines (PHQs) via one-pot multicomponent reactions of dimedone and/or ethyl acetoacetate, different aldehydes and ammonium acetate in EtOH under reflux conditions. Very low loading of the catalyst, high to quantitative yields of the desired PHAs or PHQs products, short reaction times, wide scope of the substrates, eliminating any toxic heavy metals or corrosive reagents for the modification of the catalyst, and simple work-up procedure are remarkable advantages of this green protocol. An additional advantage of this magnetic nanoparticles catalyst is its ability to be separated and recycled easily from the reaction mixture with minimal efforts in six subsequent runs without significant loss of its catalytic activity. This magnetic and dendritic catalyst can be extended to new two- and three-dimensional covalent organic frameworks with different applications.
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Affiliation(s)
- Mahsa Sam
- Pharmaceutical and Heterocyclic Compounds Research Laboratory, Department of Chemistry, Iran University of Science and Technology, 1684613114, Tehran, Iran
| | - Mohammad G Dekamin
- Pharmaceutical and Heterocyclic Compounds Research Laboratory, Department of Chemistry, Iran University of Science and Technology, 1684613114, Tehran, Iran.
| | - Zahra Alirezvani
- Pharmaceutical and Heterocyclic Compounds Research Laboratory, Department of Chemistry, Iran University of Science and Technology, 1684613114, Tehran, Iran
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6
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Froehlich K, Ali M, Ramirez P, Cervera J, García-Morales V, Erdmann M, Ensinger W. Effect of cationic polyamidoamine dendrimers on ionic transport through nanochannels. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2020.137263] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Majoral JP, Zablocka M, Ciepluch K, Milowska K, Bryszewska M, Shcharbin D, Katir N, El Kadib A, Caminade AM, Mignani S. Hybrid phosphorus–viologen dendrimers as new soft nanoparticles: design and properties. Org Chem Front 2021. [DOI: 10.1039/d1qo00511a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Design of new families of dendritic soft nanoparticles constituted of phosphorus, viologen and carbosilane fragments and their properties as nanomaterials and applications in biology.
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Affiliation(s)
- Jean-Pierre Majoral
- Laboratoire de Chimie de Coordination
- CNRS
- UPR 8241
- 31077 Toulouse CEDEX 4
- France
| | - Maria Zablocka
- Center of Molecular and Macromolecular Studies
- Polish Academy of Science
- 90001 Lodz
- Poland
| | - Karol Ciepluch
- Division of Medical Biology
- Jan Kochanowski University
- Kielce
- Poland
| | - Katarzyna Milowska
- Department of General Biophysics
- Faculty of Biology and Environmental Protection
- University of Lodz
- Lodz
- Poland
| | - Maria Bryszewska
- Department of General Biophysics
- Faculty of Biology and Environmental Protection
- University of Lodz
- Lodz
- Poland
| | | | - Nadia Katir
- Euromed Research Center
- Engineering Division
- Euro-Med University of Fes (UEMF)
- Fès
- Morocco
| | - Abdelkrim El Kadib
- Euromed Research Center
- Engineering Division
- Euro-Med University of Fes (UEMF)
- Fès
- Morocco
| | - Anne-Marie Caminade
- Laboratoire de Chimie de Coordination
- CNRS
- UPR 8241
- 31077 Toulouse CEDEX 4
- France
| | - Serge Mignani
- Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologique
- Université Paris Descartes
- PRES Sorbonne Paris Cité
- CNRS UMR 860
- 75006 Paris
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8
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Douloudi M, Nikoli E, Katsika T, Vardavoulias M, Arkas M. Dendritic Polymers as Promising Additives for the Manufacturing of Hybrid Organoceramic Nanocomposites with Ameliorated Properties Suitable for an Extensive Diversity of Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 11:E19. [PMID: 33374206 PMCID: PMC7823723 DOI: 10.3390/nano11010019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/19/2020] [Accepted: 12/20/2020] [Indexed: 12/12/2022]
Abstract
As the field of nanoscience is rapidly evolving, interest in novel, upgraded nanomaterials with combinatory features is also inevitably increasing. Hybrid composites, offer simple, budget-conscious and environmental-friendly solutions that can cater multiple needs at the same time and be applicable in many nanotechnology-related and interdisciplinary studies. The physicochemical idiocrasies of dendritic polymers have inspired their implementation as sorbents, active ingredient carriers and templates for complex composites. Ceramics are distinguished for their mechanical superiority and absorption potential that render them ideal substrates for separation and catalysis technologies. The integration of dendritic compounds to these inorganic hosts can be achieved through chemical attachment of the organic moiety onto functionalized surfaces, impregnation and absorption inside the pores, conventional sol-gel reactions or via biomimetic mediation of dendritic matrices, inducing the formation of usually spherical hybrid nanoparticles. Alternatively, dendritic polymers can propagate from ceramic scaffolds. All these variants are covered in detail. Optimization techniques as well as established and prospected applications are also presented.
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Affiliation(s)
- Marilina Douloudi
- Institute of Nanoscience Nanotechnology, NCSR “Demokritos”, Patriarchou Gregoriou Street, 15310 Athens, Greece; (E.N.); (T.K.)
| | - Eleni Nikoli
- Institute of Nanoscience Nanotechnology, NCSR “Demokritos”, Patriarchou Gregoriou Street, 15310 Athens, Greece; (E.N.); (T.K.)
| | - Theodora Katsika
- Institute of Nanoscience Nanotechnology, NCSR “Demokritos”, Patriarchou Gregoriou Street, 15310 Athens, Greece; (E.N.); (T.K.)
| | | | - Michael Arkas
- Institute of Nanoscience Nanotechnology, NCSR “Demokritos”, Patriarchou Gregoriou Street, 15310 Athens, Greece; (E.N.); (T.K.)
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9
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Katir N, Benayad A, Rouchon D, Marcotte N, El Brahmi N, Majoral JP, Bousmina M, El Kadib A. Interfacial complexation driven three-dimensional assembly of cationic phosphorus dendrimers and graphene oxide sheets. NANOSCALE ADVANCES 2019; 1:314-321. [PMID: 36132467 PMCID: PMC9473195 DOI: 10.1039/c8na00047f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 06/22/2018] [Indexed: 05/03/2023]
Abstract
High content nitrogen, sulfur and phosphorus heteroatoms assembled in tree-like dendrimers (DG n ) are confined within the galleries of two-dimensional graphene oxide (GO). The presence of the ternary diethyl-N-ethyl-ammonium groups on the dendrimer peripheries ensures the exfoliation of graphene sheets thereby affording interfacially bridged, three-dimensional heteroatom-enriched graphene-based hybrid nanostructures (DG n -GO). Dendrimer generation (from 1 to 4) that reflects the bulkiness of these conceived nano-trees impacts increasingly the degree of dispersion-exfoliation and sheet desordering. The long-term stability of these aqueous suspensions associated with their handling flexibility allows uniform accommodation of the resulting hybrid materials as flame-retardants in bioplastics.
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Affiliation(s)
- Nadia Katir
- Euromed Research Center, Engineering Division, Euro-Mediterranean University of Fez (UEMF) Route de Meknes 30000 Fès Morocco
| | - Anass Benayad
- CEA, LITEN, Department of Nanomaterials, MINATEC 17 rue des martyrs F-38054 Grenoble Cedex 09 France
| | - Denis Rouchon
- CEA, LETI, Department of Nanomaterials Minatec Campus F-38054 Grenoble Cedex 09 France
| | - Nathalie Marcotte
- Institut Charles Gerhardt UMR 5253, CNRS/ENSCM/UM 8 rue de l'Ecole Normale Montpellier F-34295 Cedex France
| | - Nabil El Brahmi
- Euromed Research Center, Engineering Division, Euro-Mediterranean University of Fez (UEMF) Route de Meknes 30000 Fès Morocco
| | - Jean Pierre Majoral
- Laboratoire de Chimie de Coordination (LCC) CNRS 205 route de Narbonne 31077 Toulouse France
| | - Mosto Bousmina
- Euromed Research Center, Engineering Division, Euro-Mediterranean University of Fez (UEMF) Route de Meknes 30000 Fès Morocco
| | - Abdelkrim El Kadib
- Euromed Research Center, Engineering Division, Euro-Mediterranean University of Fez (UEMF) Route de Meknes 30000 Fès Morocco
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10
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El Hankari S, Katir N, Collière V, Coppel Y, Bousmina M, Majoral JP, El Kadib A. Urea-assisted cooperative assembly of phosphorus dendrimer–zinc oxide hybrid nanostructures. NEW J CHEM 2019. [DOI: 10.1039/c8nj05705b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The interplay of phosphorus dendrimer–urea during sol–gel mineralization of soluble zinc precursors provides porous lamellar nanostructures.
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Affiliation(s)
- Samir El Hankari
- Euromed Research Center
- Engineering Division
- Euro-Med University of Fes (UEMF)
- Route de Meknes
- Rond point de Bensouda
| | - Nadia Katir
- Euromed Research Center
- Engineering Division
- Euro-Med University of Fes (UEMF)
- Route de Meknes
- Rond point de Bensouda
| | - Vincent Collière
- Laboratoire de Chimie de Coordination (LCC) CNRS
- 31077 Toulouse
- France
| | - Yannick Coppel
- Laboratoire de Chimie de Coordination (LCC) CNRS
- 31077 Toulouse
- France
| | - Mosto Bousmina
- Euromed Research Center
- Engineering Division
- Euro-Med University of Fes (UEMF)
- Route de Meknes
- Rond point de Bensouda
| | | | - Abdelkrim El Kadib
- Euromed Research Center
- Engineering Division
- Euro-Med University of Fes (UEMF)
- Route de Meknes
- Rond point de Bensouda
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11
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Hyperbranched mixed-mode anion-exchange polymeric sorbent for highly selective extraction of nine acidic non-steroidal anti-inflammatory drugs from human urine. Talanta 2018; 190:15-22. [DOI: 10.1016/j.talanta.2018.07.033] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 06/28/2018] [Accepted: 07/11/2018] [Indexed: 12/24/2022]
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12
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Chu Z, Zhang L, Zhang W. Preparation and evaluation of maltose modified polymer-silica composite based on cross-linked poly glycidyl methacrylate as high performance liquid chromatography stationary phase. Anal Chim Acta 2018; 1036:179-186. [PMID: 30253830 DOI: 10.1016/j.aca.2018.06.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 06/07/2018] [Accepted: 06/09/2018] [Indexed: 12/13/2022]
Abstract
A new maltose modified polymer-silica composite was fabricated and applied as high performance liquid chromatography (HPLC) stationary phase. The cross-linked poly glycidyl methacrylate (pGMA) layer was chemically bonded to the outer surface as well as pore inner surface of silica beads via in-situ polymerization, and then maltose was modified onto the polymer layer via a [3 + 2] "click" reaction. The porous spherical silica (4 μm diameter) with 300 Å pore size was selected as the matrix so that the 3.25 nm-thick polymer layer fabricated on the pore inner surface would not affect its permeability. The typical 'U-shape' retention curves indicated a mixed-mode retention mechanism of the as-synthesized stationary phase. Both polar and non-polar analytes could be well separated on the stationary phase with column efficiency reaching 123809 plates/m for guanosine in hydrophilic interaction liquid chromatography (HILIC) mode and 46808 plates/m for fluorene in reversed-phase liquid chromatography (RPLC) mode, respectively. Nucleotides and their bases were baseline separated with good peak shape without any buffer salt in mobile phase, suggesting the effective shielding of the silanol groups. The packing material also showed excellent chromatographic repeatability with intraday RSDs of the retention time of five nucleosides less than 0.048% (n = 3) and interday RSDs less than 0.33% (n = 7) and great pH stability (from 1.5 to 10.2). Finally, the stationary phase was applied to the separation of ginseng extract.
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Affiliation(s)
- Zhanying Chu
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Lingyi Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, PR China.
| | - Weibing Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, PR China.
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13
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Interactions gold/phosphorus dendrimers. Versatile ways to hybrid organic–metallic macromolecules. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.12.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Sennour R, Shiao TC, Arus VA, Tahir MN, Bouazizi N, Roy R, Azzouz A. Cu 0-Loaded organo-montmorillonite with improved affinity towards hydrogen: an insight into matrix-metal and non-contact hydrogen-metal interactions. Phys Chem Chem Phys 2017; 19:29333-29343. [PMID: 29075707 DOI: 10.1039/c7cp04784c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Copper-loaded organo-montmorillonite showed improved affinity towards hydrogen under ambient conditions. Clay ion exchange with a propargyl-ended cation followed by thiol-yne coupling with thioglycerol resulted in a porous structure with a 6 fold higher specific surface area, which dramatically decreased after copper incorporation. X-ray diffraction and photoelectron spectrometry, nuclear magnetic resonance (1H and 13C) and CO2-thermal programmed desorption revealed strong sulfur:Cu0 and oxygen:Cu0 interactions. This was explained in terms of structure compaction that 'traps' Cu0 nanoparticles (CuNPs) and reduces their mobility. Transmission electron microscopy showed predominant 1.0-1.5 nm CuNPs. Hydrogen capture appears to involve predominantly physical interaction, since differential scanning calorimetry measurements gave low desorption heat and almost complete gas release between 20 °C and 75 °C. Possible hydrogen condensation within the compacted structure should hinder gas diffusion inside CuNPs and prevent chemisorption. These results allow safe hydrogen storage with easy gas release to be envisaged even at room temperature under vacuum. The reversible capture of hydrogen can be even more attractive when using natural inorganic supports and commercial plant-derived dendrimers judiciously functionalized, even at the expense of porosity.
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Affiliation(s)
- Radia Sennour
- Nanoqam, Department of Chemistry, University of Quebec at Montreal, QC, Canada H3C 3P8.
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15
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Abstract
Nanotoxicity of nanomaterials is an important issue in view of their potential applications in systemic circulation and wound healing dressing. This account specifically deals with several characteristic features of different nanomaterials which induce hemolysis and how to make them hemocompatible. The shape, size, and surface functionalities of naked metallic as well as nonmetallic nanoparticles surfaces are responsible for the hemolysis. An appropriate coating of biocompatible molecules dramatically reduces hemolysis and promotes their ability as safe drug delivery vehicles. The use of coated nanomaterials in wound healing dressing opens several new strategies for rapid wound healing processes. Properly designed nanomaterials should be selected to minimize the nanotoxicity in the wound healing process. Future directions need new synthetic methods for engineered nanomaterials for their best use in nanomedicine and nanobiotechnology.
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Affiliation(s)
- Mandeep Singh Bakshi
- Department of Natural and Applied Sciences, University of Wisconsin-Green Bay , 2420 Nicolet Drive, Green Bay, Wisconsin 54311-7001, United States
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16
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Qiu Y, Chen S, Wang C, Lyu R, Zhang D, Liu C, Zhang Y, Li J. Preparation of SBA-15 with penetrating pores and their performance in Fischer–Tropsch synthesis. NEW J CHEM 2017. [DOI: 10.1039/c7nj02916k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A novel SBA-15 material containing penetrating pores as supports of Co-based Fischer–Tropsch Synthesis (FTS) catalysts exhibits high catalytic performance due to improving access for reagent molecules to reach the active site, resulting in a facile transport of heavy hydrocarbons.
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Affiliation(s)
- Yanju Qiu
- Key Laboratory for Green Chemical Process of Ministry of Education
- Hubei Key Laboratory of Novel Reactor and Green Chemical Technology
- School of Chemical Engineering and Pharmacy
- Wuhan Institute of Technology
- Wuhan
| | - Sufang Chen
- Key Laboratory for Green Chemical Process of Ministry of Education
- Hubei Key Laboratory of Novel Reactor and Green Chemical Technology
- School of Chemical Engineering and Pharmacy
- Wuhan Institute of Technology
- Wuhan
| | - Cunwen Wang
- Key Laboratory for Green Chemical Process of Ministry of Education
- Hubei Key Laboratory of Novel Reactor and Green Chemical Technology
- School of Chemical Engineering and Pharmacy
- Wuhan Institute of Technology
- Wuhan
| | - Renliang Lyu
- Key Laboratory for Green Chemical Process of Ministry of Education
- Hubei Key Laboratory of Novel Reactor and Green Chemical Technology
- School of Chemical Engineering and Pharmacy
- Wuhan Institute of Technology
- Wuhan
| | - Daohong Zhang
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- Hubei
- South Central University for Nationalities
- Wuhan
- P. R. China
| | - Chengchao Liu
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- Hubei
- South Central University for Nationalities
- Wuhan
- P. R. China
| | - Yuhua Zhang
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- Hubei
- South Central University for Nationalities
- Wuhan
- P. R. China
| | - Jinlin Li
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education
- Hubei
- South Central University for Nationalities
- Wuhan
- P. R. China
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17
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Katir N, Brahmi Y, Majoral JP, Bousmina M, El Kadib A. Ternary cooperative assembly--polymeric condensation of photoactive viologen, phosphonate-terminated dendrimers and crystalline anatase nanoparticles. Chem Commun (Camb) 2016; 51:17716-9. [PMID: 26489786 DOI: 10.1039/c5cc07872e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photoactive viologen fragments were covalently embedded within the material framework during the self-assembly and sol-gel polymerisation of phosphonate-terminated dendrimers and soluble titanium-oxo-species. The resulting porous anisotropic phosphonate-bridged-crystalline anatase materials serve as new hosts to disperse and stabilize small gold nanoparticles.
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Affiliation(s)
- Nadia Katir
- Euromed Research Center, Engineering Division, Euro-Mediterranean University of Fez (UEMF), Fès-Shore, Route de Sidi Harazem, Fès, Morocco.
| | - Younes Brahmi
- Université Mohamed V Agdal, Faculté des Sciences Av. Ibn Battouta, BP 1014 and MAScIR fondation, Rabat, Morocco
| | - Jean Pierre Majoral
- Laboratoire de Chimie de Coordination (LCC) CNRS, 205 route de Narbonne, 31077 Toulouse, France
| | - Mosto Bousmina
- Euromed Research Center, Engineering Division, Euro-Mediterranean University of Fez (UEMF), Fès-Shore, Route de Sidi Harazem, Fès, Morocco.
| | - Abdelkrim El Kadib
- Euromed Research Center, Engineering Division, Euro-Mediterranean University of Fez (UEMF), Fès-Shore, Route de Sidi Harazem, Fès, Morocco.
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18
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Katir N, El Brahmi N, Marcotte N, Majoral JP, Bousmina M, El Kadib A. Orthogonal Synthesis of Covalent Polydendrimer Frameworks by Fusing Classical and Onion-Peel Phosphorus-Based Dendritic Units. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01365] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Nadia Katir
- Euromed
Research Center, Engineering Division, Euro-Mediterranean University of Fes (UEMF), Fès-Shore, Route de Sidi Hrazem, 30070 Fès, Morocco
| | - Nabil El Brahmi
- Euromed
Research Center, Engineering Division, Euro-Mediterranean University of Fes (UEMF), Fès-Shore, Route de Sidi Hrazem, 30070 Fès, Morocco
| | - Nathalie Marcotte
- Institut
Charles Gerhardt UMR 5253, CNRS/ENSCM/UM, 8 rue de l’Ecole Normale, Montpellier F-34295 Cedex, France
| | - Jean Pierre Majoral
- Laboratoire
de Chimie de Coordination (LCC), CNRS, 205 route de Narbonne, 31077 Toulouse, France
| | - Mosto Bousmina
- Euromed
Research Center, Engineering Division, Euro-Mediterranean University of Fes (UEMF), Fès-Shore, Route de Sidi Hrazem, 30070 Fès, Morocco
| | - Abdelkrim El Kadib
- Euromed
Research Center, Engineering Division, Euro-Mediterranean University of Fes (UEMF), Fès-Shore, Route de Sidi Hrazem, 30070 Fès, Morocco
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19
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Riegert D, Bareille L, Laurent R, Majoral JP, Caminade AM, Chaumonnot A. Silica Functionalized by Bifunctional Dendrimers: Hybrid Nanomaterials for Trapping CO2. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600426] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- David Riegert
- CNRS; LCC (Laboratoire de Chimie de Coordination); 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- Université de Toulouse; UPS; INPT; 31077 Toulouse Cedex 4 France
- IFPEN; Rond point de l'échangeur de Solaize, BP 3 69360 Solaize France
| | - Laurianne Bareille
- CNRS; LCC (Laboratoire de Chimie de Coordination); 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- Université de Toulouse; UPS; INPT; 31077 Toulouse Cedex 4 France
- IFPEN; Rond point de l'échangeur de Solaize, BP 3 69360 Solaize France
| | - Régis Laurent
- CNRS; LCC (Laboratoire de Chimie de Coordination); 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- Université de Toulouse; UPS; INPT; 31077 Toulouse Cedex 4 France
| | - Jean-Pierre Majoral
- CNRS; LCC (Laboratoire de Chimie de Coordination); 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- Université de Toulouse; UPS; INPT; 31077 Toulouse Cedex 4 France
| | - Anne-Marie Caminade
- CNRS; LCC (Laboratoire de Chimie de Coordination); 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- Université de Toulouse; UPS; INPT; 31077 Toulouse Cedex 4 France
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20
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Finiels A, Alonso B, Bousmina M, Brunel D, El Kadib A. Periodic mesoporous organosilicas derived from amphiphilic bulky polymethylsiloxane. NEW J CHEM 2016. [DOI: 10.1039/c5nj01824b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Depending on the synthetic conditions (surfactant, acid, base, and presence or absence of TEOS), the sol–gel polymerization of functionalized polyorganosiloxane affords various textured silica-based materials.
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Affiliation(s)
- Annie Finiels
- Institut Charles Gerhardt Montpellier, UMR 5253 CNRS/UM/ENSCM
- ENSCM-8
- rue de l'Ecole Normale
- 34296 Montpellier Cedex
- France
| | - Bruno Alonso
- Institut Charles Gerhardt Montpellier, UMR 5253 CNRS/UM/ENSCM
- ENSCM-8
- rue de l'Ecole Normale
- 34296 Montpellier Cedex
- France
| | - Mosto Bousmina
- Euromed Research Center
- Engineering Division, Euro-Mediterranean University of Fes (UEMF)
- Fès-Shore
- Route de Sidi harazem
- Fès
| | - Daniel Brunel
- Institut Charles Gerhardt Montpellier, UMR 5253 CNRS/UM/ENSCM
- ENSCM-8
- rue de l'Ecole Normale
- 34296 Montpellier Cedex
- France
| | - Abdelkrim El Kadib
- Euromed Research Center
- Engineering Division, Euro-Mediterranean University of Fes (UEMF)
- Fès-Shore
- Route de Sidi harazem
- Fès
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21
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Mustafa R, Luo Y, Wu Y, Guo R, Shi X. Dendrimer-Functionalized Laponite Nanodisks as a Platform for Anticancer Drug Delivery. NANOMATERIALS (BASEL, SWITZERLAND) 2015; 5:1716-1731. [PMID: 28347091 PMCID: PMC5304796 DOI: 10.3390/nano5041716] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 10/07/2015] [Accepted: 10/13/2015] [Indexed: 11/16/2022]
Abstract
In this study, we synthesized dendrimer-functionalized laponite (LAP) nanodisks for loading and delivery of anticancer drug doxorubicin (DOX). Firstly, LAP was modified with silane coupling agents and succinic anhydride to render abundant carboxyl groups on the surface of LAP. Then, poly(amidoamine) (PAMAM) dendrimer of generation 2 (G2) were conjugated to form LM-G2 nanodisks. Anticancer drug DOX was then loaded on the LM-G2 with an impressively high drug loading efficiency of 98.4% and could be released in a pH-sensitive and sustained manner. Moreover, cell viability assay results indicate that LM-G2/DOX complexes could more effectively inhibit the proliferation of KB cells (a human epithelial carcinoma cell line) than free DOX at the same drug concentration. Flow cytometry analysis and confocal laser scanning microscope demonstrated that LM-G2/DOX could be uptaken by KB cells more effectively than free DOX. Considering the exceptional high drug loading efficiency and the abundant dendrimer amine groups on the surface that can be further modified, the developed LM-G2 nanodisks may hold a great promise to be used as a novel platform for anticancer drug delivery.
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Affiliation(s)
- Rania Mustafa
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
| | - Yu Luo
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
| | - Yilun Wu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
| | - Rui Guo
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
| | - Xiangyang Shi
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
- CQM-Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9000-390 Funchal, Portugal.
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22
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Milowska K, Rybczyńska A, Mosiolek J, Durdyn J, Szewczyk EM, Katir N, Brahmi Y, Majoral JP, Bousmina M, Bryszewska M, El Kadib A. Biological Activity of Mesoporous Dendrimer-Coated Titanium Dioxide: Insight on the Role of the Surface-Interface Composition and the Framework Crystallinity. ACS APPLIED MATERIALS & INTERFACES 2015; 7:19994-20003. [PMID: 26305597 DOI: 10.1021/acsami.5b04780] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Hitherto, the field of nanomedicine has been overwhelmingly dominated by the use of mesoporous organosilicas compared to their metal oxide congeners. Despite their remarkable reactivity, titanium oxide-based materials have been seldom evaluated and little knowledge has been gained with respect to their "structure-biological activity" relationship. Herein, a fruitful association of phosphorus dendrimers (both "ammonium-terminated" and "phosphonate-terminated") and titanium dioxide has been performed by means of the sol-gel process, resulting in mesoporous dendrimer-coated nanosized crystalline titanium dioxide. A similar organo-coating has been reproduced using single branch-mimicking dendrimers that allow isolation of an amorphous titanium dioxide. The impact of these materials on red blood cells was evaluated by studying cell hemolysis. Next, their cytotoxicity toward B14 Chinese fibroblasts and their antimicrobial activity were also investigated. Based on their variants (cationic versus anionic terminal groups and amorphous versus crystalline titanium dioxide phase), better understanding of the role of the surface-interface composition and the nature of the framework has been gained. No noticeable discrimination was observed for amorphous and crystalline material. In contrast, hemolysis and cytotoxicity were found to be sensitive to the nature of the interface composition, with the ammonium-terminated dendrimer-coated titanium dioxide being the most hemolytic and cytotoxic material. This surface-functionalization opens the door for creating a new synergistic machineries mechanism at the cellular level and seems promising for tailoring the biological activity of nanosized organic-inorganic hybrid materials.
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Affiliation(s)
- Katarzyna Milowska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz , 141/143 Pomorska Street, 90-236 Lodz, Poland
| | - Aneta Rybczyńska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz , 141/143 Pomorska Street, 90-236 Lodz, Poland
| | - Joanna Mosiolek
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz , 141/143 Pomorska Street, 90-236 Lodz, Poland
| | - Joanna Durdyn
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz , 141/143 Pomorska Street, 90-236 Lodz, Poland
| | - Eligia M Szewczyk
- Department of Pharmaceutical Microbiology and Microbiological Diagnostics, Medical University of Lodz , 137 Pomorska Street, 90-235 Lodz, Poland
| | - Nadia Katir
- Euromed Research Center, Engineering Division, Euro-Mediterranean University of Fes (UEMF), Fès-Shore , Route de Sidi Hrazem, 30070 Fès, Morocco
| | - Younes Brahmi
- Université Mohammed V Agdal, Faculté des Sciences, and MAScIR foundation, 10100 Rabat, Morocco
| | - Jean-Pierre Majoral
- Laboratoire de Chimie de Coordination (LCC) CNRS , 205 route de Narbonne, 31077 Toulouse, France
| | - Mosto Bousmina
- Euromed Research Center, Engineering Division, Euro-Mediterranean University of Fes (UEMF), Fès-Shore , Route de Sidi Hrazem, 30070 Fès, Morocco
| | - Maria Bryszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz , 141/143 Pomorska Street, 90-236 Lodz, Poland
| | - Abdelkrim El Kadib
- Euromed Research Center, Engineering Division, Euro-Mediterranean University of Fes (UEMF), Fès-Shore , Route de Sidi Hrazem, 30070 Fès, Morocco
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23
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Li Y, Yang J, Huang C, Wang L, Wang J, Chen J. Dendrimer-functionalized mesoporous silica as a reversed-phase/anion-exchange mixed-mode sorbent for solid phase extraction of acid drugs in human urine. J Chromatogr A 2015; 1392:28-36. [DOI: 10.1016/j.chroma.2015.03.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 02/28/2015] [Accepted: 03/02/2015] [Indexed: 10/23/2022]
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24
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Katir N, El Brahmi N, El Kadib A, Mignani S, Caminade AM, Bousmina M, Majoral JP. Synthesis of onion-peel nanodendritic structures with sequential functional phosphorus diversity. Chemistry 2015; 21:6400-8. [PMID: 25754619 DOI: 10.1002/chem.201500138] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Indexed: 12/27/2022]
Abstract
The preparation of novel families of phosphorus-based macromolecular architectures called "onion peel" phosphorus nanodendritic systems is reported. This construct is based on the versatility of methods of synthesis using several building blocks and on the capability of these systems to undergo regioselective reactions within the cascade structure. Sustainable metal-free routes such as the Staudinger reaction or Schiff-base condensation, involving only water and nitrogen as byproducts, allow access to several dendritic macromolecules bearing up to seven different phosphorus units in their backbone, each of them featuring specific reactivity. The presence of the highly aurophilic P=N-P=S fragment enables selective ligation of Au(I) within the dendritic framework.
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Affiliation(s)
- Nadia Katir
- Euromed Research Institute, Engineering Division, Euro-Mediterranean University of Fes (UEMF), Fès-Shore, Route de Sidi Hrazem, 30070 Fès (Morocco)
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25
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Gao L, Du J, Wang C, Wei Y. Fabrication of a dendrimer-modified boronate affinity material for online selective enrichment of cis-diol-containing compounds and its application in determination of nucleosides in urine. RSC Adv 2015. [DOI: 10.1039/c5ra18443f] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A high binding capacity dendrimer-modified boronate affinity material (SiO2@dBA) was synthesized and coupled with large-volume injection/online column-switching solid phase extraction to facilitate the determination process of cis-diols.
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Affiliation(s)
- Li Gao
- Key Laboratory of Synthetic and Natural Function Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
- China
| | - Jin Du
- Key Laboratory of Synthetic and Natural Function Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
- China
| | - Chaozhan Wang
- Key Laboratory of Synthetic and Natural Function Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
- China
| | - Yinmao Wei
- Key Laboratory of Synthetic and Natural Function Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
- China
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26
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Brahmi Y, Katir N, Agullo JAM, Primo A, Bousmina M, Pierre Majoral J, Garcia H, El Kadib A. Organophosphonate bridged anatase mesocrystals: low temperature crystallization, thermal growth and hydrogen photo-evolution. Dalton Trans 2015; 44:15544-56. [DOI: 10.1039/c5dt02367j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Tuning P-doping: phosphorus dendrimers enabled access, at 60 °C, to ultra-stable organophosphonate-bridged-anatase mesocrystals with a promising water-splitting photo-activity.
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Affiliation(s)
- Younes Brahmi
- Université Mohamed V Agdal
- Faculté des Sciences Av. Ibn Battouta
- BP 1014 and MAScIR foundation
- Rabat
- Morocco
| | - Nadia Katir
- Euromed Research Center
- Engineering Division
- Euro-Mediterranean University of Fes (UEMF)
- 30070 Fès
- Morocco
| | - Juan Antonio Macia Agullo
- Instituto de Tecnologia Quimica CSIC-UPV and Departamento de Quimica. Univ. Politicnica de Valencia
- 46022 Valencia
- Spain
| | - Ana Primo
- Instituto de Tecnologia Quimica CSIC-UPV and Departamento de Quimica. Univ. Politicnica de Valencia
- 46022 Valencia
- Spain
| | - Mosto Bousmina
- Euromed Research Center
- Engineering Division
- Euro-Mediterranean University of Fes (UEMF)
- 30070 Fès
- Morocco
| | | | - Hermenegildo Garcia
- Instituto de Tecnologia Quimica CSIC-UPV and Departamento de Quimica. Univ. Politicnica de Valencia
- 46022 Valencia
- Spain
| | - Abdelkrim El Kadib
- Euromed Research Center
- Engineering Division
- Euro-Mediterranean University of Fes (UEMF)
- 30070 Fès
- Morocco
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27
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Li J, Chen L, Li X, Zhang C, Jiang Y. One-step synthesis of structure controlled vinyl functionalized hollow mesoporous silica nanospheres. NEW J CHEM 2015. [DOI: 10.1039/c4nj01132e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple synthetic strategy of vinyl functionalized hollow mesoporous silica nanospheres using CTAB as a template and ammonia as a catalyst.
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Affiliation(s)
- Jie Li
- School of Chemistry
- Chemical Engineer and Life Science
- Wuhan University of Technology
- Wuhan
- P. R. China
| | - Lianxi Chen
- School of Chemistry
- Chemical Engineer and Life Science
- Wuhan University of Technology
- Wuhan
- P. R. China
| | - Xi Li
- School of Chemistry
- Chemical Engineer and Life Science
- Wuhan University of Technology
- Wuhan
- P. R. China
| | - Chaocan Zhang
- School of Materials Science and Engineering
- Wuhan University of Technology
- Wuhan
- P. R. China
| | - Yang Jiang
- School of Chemistry
- Chemical Engineer and Life Science
- Wuhan University of Technology
- Wuhan
- P. R. China
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28
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El Kadib A. Chitosan as a sustainable organocatalyst: a concise overview. CHEMSUSCHEM 2015; 8:217-244. [PMID: 25470553 DOI: 10.1002/cssc.201402718] [Citation(s) in RCA: 127] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 09/20/2014] [Indexed: 06/04/2023]
Abstract
Increased demand for more sustainable materials and chemical processes has tremendously advanced the use of polysaccharides, which are natural biopolymers, in domains such as adsorption, catalysis, and as an alternative chemical feedstock. Among these biopolymers, the use of chitosan, which is obtained by deacetylation of natural chitin, is on the increase due to the presence of amino groups on the polymer backbone that makes it a natural cationic polymer. The ability of chitosan-based materials to form open-network, macroporous, high-surface-area hydrogels with accessible basic surface sites has enabled their use not only as macrochelating ligands for active metal catalysts and as a support to disperse nanosized particles, but also as a direct organocatalyst. This review provides a concise overview of the use of native and modified chitosan, possessing different textural properties and chemical properties, as organocatalysts. Organocatalysis with chitosan is primarily focused on carbon-carbon bond-forming reactions, multicomponent heterocycle formation reactions, biodiesel production, and carbon dioxide fixation through [3+2] cycloaddition. Furthermore, the chiral, helical organization of the chitosan skeleton lends itself to use in enantioselective catalysis. Chitosan derivatives generally display reactivity similar to homogeneous bases, ionic liquids, and organic and inorganic salts. However, the introduction of cooperative acid-base interactions at active sites substantially enhances reactivity. These functional biopolymers can also be easily recovered and reused several times under solvent-free conditions. These accomplishments highlight the important role that natural biopolymers play in furthering more sustainable chemistry.
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Affiliation(s)
- Abdelkrim El Kadib
- Euro-Med Research Institute, Engineering Division, Euro-Mediterranean University of Fes (UEMF), Fès Shore, Route de Sidi Hrazem, 30070 Fès (Morocco).
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29
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Li Y, Yang J, Jin J, Sun X, Wang L, Chen J. New reversed-phase/anion-exchange/hydrophilic interaction mixed-mode stationary phase based on dendritic polymer-modified porous silica. J Chromatogr A 2014; 1337:133-9. [DOI: 10.1016/j.chroma.2014.02.044] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 02/14/2014] [Accepted: 02/17/2014] [Indexed: 11/17/2022]
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30
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Lai LL, Hsieh JW, Cheng KL, Liu SH, Lee JJ, Hsu HF. A Small Change in Central Linker Has a Profound Effect in Inducing Columnar Phases of Triazine-Based Unconventional Dendrimers. Chemistry 2014; 20:5160-6. [DOI: 10.1002/chem.201303913] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 01/21/2014] [Indexed: 12/19/2022]
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Katir N, El Kadib A, Collière V, Majoral JP, Bousmina M. Viologen-based dendritic macromolecular asterisks: synthesis and interplay with gold nanoparticles. Chem Commun (Camb) 2014; 50:6981-3. [DOI: 10.1039/c4cc02392g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Jollet V, Albela B, Sénéchal-David K, Jégou P, Kolodziej E, Sainton J, Bonneviot L, Banse F. Confinement of a bioinspired nonheme Fe(II) complex in 2D hexagonal mesoporous silica with metal site isolation. Dalton Trans 2013; 42:11607-13. [PMID: 23824307 DOI: 10.1039/c3dt50590a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mixed amine pyridine polydentate Fe(II) complex was covalently tethered in hexagonal mesoporous silica of the MCM-41 type. Metal site isolation was generated using adsorbed tetramethylammonium cations acting as a patterned silanol protecting mask and trimethylsilylazane as a capping agent. Then, the amine/pyridine ligand bearing a tethering triethoxysilane group was either grafted to such a pretreated silica surface prior to or after complexation to Fe(II). These two synthetic routes, denoted as two-step and one-step, respectively, were also applied to fumed silica for comparison, except that the silanol groups were capped after tethering the metal unit. The coordination of the targeted complex was monitored using UV-visible spectrophotometry and, according to XPS, the best control was achieved inside the channels of the mesoporous silica for the two-step route. For the solid prepared according to the one-step route, tethering of the complex occurred mainly at the entrance of the channel.
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Affiliation(s)
- Véronique Jollet
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, Laboratoire de Chimie Inorganique, Université Paris Sud, F-91405 Orsay Cedex, France
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33
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Brahmi Y, Katir N, Ianchuk M, Collière V, Essassi EM, Ouali A, Caminade AM, Bousmina M, Majoral JP, El Kadib A. Low temperature synthesis of ordered mesoporous stable anatase nanocrystals: the phosphorus dendrimer approach. NANOSCALE 2013; 5:2850-6. [PMID: 23443334 DOI: 10.1039/c3nr00058c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
The scarcity of low temperature syntheses of anatase nanocrystals prompted us to explore the use of surface-reactive fourth generation phosphorus-dendrimers as molds to control the nucleation and growth of titanium-oxo-species during the sol-gel mineralization process. Unexpectedly, the dendritic medium provides at low temperature, discrete anatase nanocrystals (4.8 to 5.2 nm in size), in marked contrast to the routinely obtained amorphous titanium dioxide phase under standard conditions. Upon thermal treatment, heteroatom migration from the branches to the nanoparticle surface and the ring opening polymerization of the cyclophosphazene core provide stable, interpenetrating mesoporous polyphosphazene-anatase hybrid materials (-P[double bond, length as m-dash]N-)n-TiO2. The steric hindrance of the dendritic skeleton, the passivation of the anatase surface by heteroatoms and the ring opening of the core limit the crystal growth of anatase to 7.4 nm and prevent, up to 800 °C, the commonly observed anatase-to-rutile phase transformation. Performing this mineralization in the presence of similar surface-reactive but non-dendritic skeletons (referred to as branch-mimicking dendrimers) failed to generate crystalline anatase and to efficiently limit the crystal growth, bringing thus clear evidence of the virtues of phosphorus dendrimers in the design of novel nanostructured materials.
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Affiliation(s)
- Younes Brahmi
- Institute of Nanomaterials and Nanotechnology - MAScIR (Moroccan Foundation for Advanced Science, Innovation and Research), ENSET, Avenue de l'Armée Royale, Madinat El Irfane, 10100 Rabat, Morocco
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