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Johann F, Wöll S, Gieseler H. Evaluating the Potential of Cyclodextrins in Reducing Aggregation of Antibody-Drug Conjugates with Different Payloads. J Pharm Sci 2024; 113:2443-2453. [PMID: 38679234 DOI: 10.1016/j.xphs.2024.04.024] [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: 03/01/2024] [Revised: 04/21/2024] [Accepted: 04/22/2024] [Indexed: 05/01/2024]
Abstract
Cyclodextrins (CDs) are versatile agents used to solubilize small drugs and stabilize proteins. This dual functionality may be particularly beneficial for antibody-drug conjugates (ADCs), as CDs may "mask" the hydrophobicity of the drug payloads. In this study, we explored the effect of CDs on the physical stability of ADCs composed of the same antibody but with different payloads (maytansinoid, auristatin, and fluorophore payloads). The aggregation of ADCs was evaluated under shaking stress conditions and elevated temperatures using size-exclusion chromatography, turbidity, and backgrounded membrane imaging. Our results showed that hydroxypropyl-(HP)-CDs effectively stabilized all ADCs during shaking stress, with increasing stabilization in the order of HPαCD < HPγCD < HPβCD at concentrations of 7.5 mM and (near) complete stabilization at 75 mM. Native CDs without surface activity also stabilized certain ADCs, although less effectively than HP-CDs under agitation stress. During quiescent incubation, the HP-CD effects were small for most ADCs. However, for an ADC with a fluorophore payload that rapidly aggregated after conjugation, HPγCD substantially reduced aggregate levels, in line with fluorescence data supporting CD-ADC interactions. In contrast, sulfobutylether-β-CD (SBEβCD) increased the aggregation rates in all ADCs under all stress conditions. In conclusion, this study highlights the potential of appropriate CD formulations to improve the physical stability of ADCs.
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Affiliation(s)
- Florian Johann
- Friedrich-Alexander University (FAU) Erlangen-Nürnberg, Department of Pharmaceutical Technology and Biopharmacy, Freeze Drying Focus Group (FDFG), Cauerstraße 4, 91058 Erlangen, Germany; Merck KGaA, Global CMC Development, Frankfurter Straße 250, 64293 Darmstadt, Germany
| | - Steffen Wöll
- Merck KGaA, Global CMC Development, Frankfurter Straße 250, 64293 Darmstadt, Germany
| | - Henning Gieseler
- Friedrich-Alexander University (FAU) Erlangen-Nürnberg, Department of Pharmaceutical Technology and Biopharmacy, Freeze Drying Focus Group (FDFG), Cauerstraße 4, 91058 Erlangen, Germany; GILYOS GmbH, Friedrich-Bergius-Ring 15, 97076 Würzburg, Germany.
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2
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Liu M, Higashi K, Ueda K, Moribe K. Supersaturation maintenance of carvedilol and chlorthalidone by cyclodextrin derivatives: Pronounced crystallization inhibition ability of methylated cyclodextrin. Int J Pharm 2023; 637:122876. [PMID: 36963642 DOI: 10.1016/j.ijpharm.2023.122876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 02/21/2023] [Accepted: 03/18/2023] [Indexed: 03/26/2023]
Abstract
Cyclodextrin (CD) is used to solubilize poorly water-soluble drugs by inclusion complex formation. In this study, we investigated the effect of CD derivatives on stabilizing the supersaturation by inhibiting the crystallization of two poorly water-soluble drugs, carvedilol (CVD) and chlorthalidone (CLT). The phase solubility test showed that β-CD and γ-CD derivatives enhanced the solubility of CVD to a greater extent, whereas the solubility of CLT was enhanced more by β-CD derivatives. The solubilization efficacy of CD derivatives was dependent on the size fitness between the drug molecule and the CD cavity. In the drug crystallization induction time measurement, the same initial drug supersaturation ratio (S) was employed in all the CD solutions, and the methylated CD derivatives greatly outperformed unmethylated CD derivatives in stabilizing the supersaturation of both CVD and CLT. The crystallization inhibition strength of CD derivatives was strongly affected by the CD derivative substituent. Moreover, the calculated logarithm of octanol/water partition coefficients (log P) of CD derivatives showed a good correlation with drug crystallization inhibition ability. Thus, the high hydrophobicity of methylated CD plays an essential role in inhibiting crystallization. These findings can provide a valuable guide for selecting appropriate stabilizing agents for drug-supersaturation formulations.
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Affiliation(s)
- Mengyao Liu
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Kenjirou Higashi
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Keisuke Ueda
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Kunikazu Moribe
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan.
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3
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Saadaoui WH, Machut C, Rio S, Bigot S, Wiatz V, Monflier E, Ponchel A. Direct conversion of glucose to 5-hydroxymethylfurfural over niobium oxide/phosphate-carbon composites derived from hydrothermal carbonization of cyclodextrins. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2023.112931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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4
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Wang H, Abou-Fayssal CJ, Fliedel C, Manoury E, Poli R. Phosphine-Functionalized Core-Crosslinked Micelles and Nanogels with an Anionic Poly(styrenesulfonate) Shell: Synthesis, Rhodium(I) Coordination and Aqueous Biphasic Hydrogenation Catalysis. Polymers (Basel) 2022; 14:4937. [PMID: 36433063 PMCID: PMC9697678 DOI: 10.3390/polym14224937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/08/2022] [Accepted: 11/10/2022] [Indexed: 11/18/2022] Open
Abstract
Stable latexes containing unimolecular amphiphilic core-shell star-block polymers with a triphenylphosphine(TPP)-functionalized hydrophobic core and an outer hydrophilic shell based on anionic styrenesulfonate monomers have been synthesized in a convergent three-step strategy by reversible addition-fragmentation chain-transfer (RAFT) polymerization, loaded with [RhCl(COD)]2 and applied to the aqueous biphasic hydrogenation of styrene. When the outer shell contains sodium styrenesulfonate homopolymer blocks, treatment with a toluene solution of [RhCl(COD)]2 led to undesired polymer coagulation. Investigation of the interactions of [RhCl(COD)]2 and [RhCl(COD)(PPh3)] with smaller structural models of the polymer shell functions, namely sodium p-toluenesulfonate, sodium styrenesulfonate, and a poly(sodium styrenesulfonate) homopolymer in a biphasic toluene/water medium points to the presence of equilibrated Rh-sulfonate interactions as the cause of coagulation by inter-particle cross-linking. Modification of the hydrophilic shell to a statistical copolymer of sodium styrenesulfonate and poly(ethylene oxide) methyl ether methacrylate (PEOMA) in a 20:80 ratio allowed particle loading with the generation of core-anchored [RhCl(COD)TPP] complexes. These Rh-loaded latexes efficiently catalyze the aqueous biphasic hydrogenation of neat styrene as a benchmark reaction. The catalytic phase could be recovered and recycled, although the performances in terms of catalyst leaching and activity evolution during recycles are inferior to those of equivalent nanoreactors based on neutral or polycationic outer shells.
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Affiliation(s)
- Hui Wang
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 Route de Narbonne, BP 44099, 31077 Toulouse CEDEX 4, France
| | - Chantal J. Abou-Fayssal
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 Route de Narbonne, BP 44099, 31077 Toulouse CEDEX 4, France
- Centre for Catalysis and Sustainable Chemistry, Department of Chemistry, Technical University of Denmark, Kemitorvet, Building 207, 2800 Kongens Lyngby, Denmark
| | - Christophe Fliedel
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 Route de Narbonne, BP 44099, 31077 Toulouse CEDEX 4, France
| | - Eric Manoury
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 Route de Narbonne, BP 44099, 31077 Toulouse CEDEX 4, France
| | - Rinaldo Poli
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 Route de Narbonne, BP 44099, 31077 Toulouse CEDEX 4, France
- Institut Universitaire de France, 1, Rue Descartes, 75231 Paris CEDEX 05, France
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Rhodium-Catalyzed Aqueous Biphasic Olefin Hydroformylation Promoted by Amphiphilic Cyclodextrins. Catalysts 2020. [DOI: 10.3390/catal10010056] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Hydroformylation is an industrial process that allows for the production of aldehydes from alkenes using transition metals. The reaction can be carried out in water, and the catalyst may be recycled at the end of the reaction. The industrial application of rhodium-catalyzed aqueous hydroformylation has been demonstrated for smaller olefins (propene and butene). Unfortunately, larger olefins are weakly soluble in water, which results in very low catalytic activity. In an attempt to counteract this, we investigated the use of amphiphilic oleic succinyl-cyclodextrins (OS-CDs) synthesized from oleic acid derivatives and maleic anhydride. OS-CDs were found to increase the catalytic activity of rhodium during the hydroformylation of water-insoluble olefins, such as 1-decene and 1-hexadecene, by promoting mass transfer. Recyclability of the catalytic system was also evaluated in the presence of these cyclodextrins.
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Cocq A, Rousseau C, Bricout H, Oliva E, Bonnet V, Djedaïni-Pilard F, Monflier E, Tilloy S. Highly Water-Soluble Amphiphilic Cyclodextrins Bearing Branched and Cyclic Oleic Grafts. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900789] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Aurélien Cocq
- Univ. Lille, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS); Univ. Artois, CNRS, Centrale Lille, ENSCL; 62300 Lens France
| | - Cyril Rousseau
- Univ. Lille, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS); Univ. Artois, CNRS, Centrale Lille, ENSCL; 62300 Lens France
| | - Hervé Bricout
- Univ. Lille, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS); Univ. Artois, CNRS, Centrale Lille, ENSCL; 62300 Lens France
| | - Estefanía Oliva
- Laboratoire de Glycochimie des Antimicrobiens et des Agroressources, LG2A UMR 7378 CNRS; Université de Picardie Jules Verne; 33 rue Saint-Leu 80039 Amiens France
| | - Véronique Bonnet
- Laboratoire de Glycochimie des Antimicrobiens et des Agroressources, LG2A UMR 7378 CNRS; Université de Picardie Jules Verne; 33 rue Saint-Leu 80039 Amiens France
| | - Florence Djedaïni-Pilard
- Laboratoire de Glycochimie des Antimicrobiens et des Agroressources, LG2A UMR 7378 CNRS; Université de Picardie Jules Verne; 33 rue Saint-Leu 80039 Amiens France
| | - Eric Monflier
- Univ. Lille, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS); Univ. Artois, CNRS, Centrale Lille, ENSCL; 62300 Lens France
| | - Sébastien Tilloy
- Univ. Lille, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS); Univ. Artois, CNRS, Centrale Lille, ENSCL; 62300 Lens France
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Cocq A, Rousseau C, Bricout H, Oliva E, Bonnet V, Djedaïni-Pilard F, Monflier E, Tilloy S. Oleic Acid Based Cyclodextrins for the Development of New Hydrosoluble Amphiphilic Compounds. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801609] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Aurélien Cocq
- Univ. Lille, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS); Univ. Artois, CNRS, Centrale Lille, ENSCL; 62300 Lens France
| | - Cyril Rousseau
- Univ. Lille, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS); Univ. Artois, CNRS, Centrale Lille, ENSCL; 62300 Lens France
| | - Hervé Bricout
- Univ. Lille, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS); Univ. Artois, CNRS, Centrale Lille, ENSCL; 62300 Lens France
| | - Estefanía Oliva
- Laboratoire de Glycochimie des Antimicrobiens et des Agroressources, LG2A UMR 7378 CNRS; Université de Picardie Jules Verne; 33 rue Saint-Leu 80039 Amiens France
| | - Véronique Bonnet
- Laboratoire de Glycochimie des Antimicrobiens et des Agroressources, LG2A UMR 7378 CNRS; Université de Picardie Jules Verne; 33 rue Saint-Leu 80039 Amiens France
| | - Florence Djedaïni-Pilard
- Laboratoire de Glycochimie des Antimicrobiens et des Agroressources, LG2A UMR 7378 CNRS; Université de Picardie Jules Verne; 33 rue Saint-Leu 80039 Amiens France
| | - Eric Monflier
- Univ. Lille, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS); Univ. Artois, CNRS, Centrale Lille, ENSCL; 62300 Lens France
| | - Sébastien Tilloy
- Univ. Lille, UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS); Univ. Artois, CNRS, Centrale Lille, ENSCL; 62300 Lens France
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Gidwani B, Vyas A, Deep Kaur C. Investigation of inclusion behaviour of gefitinib with epichlorohydrin-β-cyclodextrin polymer: preparation of binary complex, stoichiometric determination and characterization. J Pharm Biomed Anal 2018; 160:31-37. [PMID: 30059812 DOI: 10.1016/j.jpba.2018.07.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 07/15/2018] [Accepted: 07/16/2018] [Indexed: 01/07/2023]
Abstract
Gefitinib is anticancer drug which is sparingly soluble in water. This limits its dissolution and bioavailability. Binary inclusion complex of gefitinib with Epi-β-CD was prepared by freeze-drying method. Stoichiometric ratio of 1:1 M was established by continuous variation (Job's) plot. The stability constant of complex as determined by phase solubility study was found to be 15,871.3 M-1. Complex was characterized by FTIR, DSC, DTA and dissolution study. Results revealed that in complex the drug no longer exist in crystalline state and is converted into amorphous form; which shows higher dissolution efficiency as compared to crystalline drug. The solubilizing efficiency for freeze dried complex was found to be 175.57 and the relative drug crystallinity degree was 87.91% as estimated by thermal analysis. Complexation led to decrease in surface tension; from 54.8 dynes/cm (pure gefitinib) to 40.3 dynes/cm (FD complex) due to adsorption phenomenon. The results obtained in this study confirmed that complexation of gefitinib with Epi-β-CD is a prominent approach and suitable tool for tailoring the issue related to its delivery and can be explored for development of an effective delivery system.
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Affiliation(s)
- Bina Gidwani
- Shri Rawatpura Sarkar Institute of Pharmacy, Kumhari, Durg, C.G, India; University Institute of Pharmacy, Pt. R. S. S. U, Raipur, C.G., India.
| | - Amber Vyas
- University Institute of Pharmacy, Pt. R. S. S. U, Raipur, C.G., India
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9
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Saokham P, Muankaew C, Jansook P, Loftsson T. Solubility of Cyclodextrins and Drug/Cyclodextrin Complexes. Molecules 2018; 23:E1161. [PMID: 29751694 PMCID: PMC6099580 DOI: 10.3390/molecules23051161] [Citation(s) in RCA: 359] [Impact Index Per Article: 59.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 05/07/2018] [Accepted: 05/08/2018] [Indexed: 11/16/2022] Open
Abstract
Cyclodextrins (CDs), a group of oligosaccharides formed by glucose units bound together in a ring, show a promising ability to form complexes with drug molecules and improve their physicochemical properties without molecular modifications. The stoichiometry of drug/CD complexes is most frequently 1:1. However, natural CDs have a tendency to self-assemble and form aggregates in aqueous media. CD aggregation can limit their solubility. Through derivative formation, it is possible to enhance their solubility and complexation capacity, but this depends on the type of substituent and degree of substitution. Formation of water-soluble drug/CD complexes can increase drug permeation through biological membranes. To maximize drug permeation the amount of added CD into pharmaceutical preparation has to be optimized. However, solubility of CDs, especially that of natural CDs, is affected by the complex formation. The presence of pharmaceutical excipients, such as water-soluble polymers, preservatives, and surfactants, can influence the solubilizing abilities of CDs, but this depends on the excipients' physicochemical properties. The competitive CD complexation of drugs and excipients has to be considered during formulation studies.
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Affiliation(s)
- Phennapha Saokham
- Faculty of Pharmacy, Rangsit University, Pathum Thani 12000, Thailand.
| | - Chutimon Muankaew
- Faculty of Pharmacy, Siam University, 38 Petchkasem Road, Phasi Charoen District, Bangkok 10160, Thailand.
| | - Phatsawee Jansook
- Faculty of Pharmaceutical Sciences, Chulalongkorn University, 254 Phyathai Road, Pathumwan, Bangkok 10330, Thailand.
| | - Thorsteinn Loftsson
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, 107 Reykjavik, Iceland.
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Peral D, Stehl D, Bibouche B, Yu H, Mardoukh J, Schomäcker R, Klitzing RV, Vogt D. Colloidal polymer particles as catalyst carriers and phase transfer agents in multiphasic hydroformylation reactions. J Colloid Interface Sci 2018; 513:638-646. [PMID: 29207346 DOI: 10.1016/j.jcis.2017.11.071] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 11/23/2017] [Accepted: 11/24/2017] [Indexed: 10/18/2022]
Abstract
HYPOTHESIS Colloidal particles have been used to covalently bind ligands for the heterogenization of homogeneous catalysts. The replacement of the covalent bonds by electrostatic interactions between particles and the catalyst could preserve the selectivity of a truly homogeneous catalytic process. EXPERIMENTS Functionalized polymer particles with trimethylammonium moieties, dispersed in water, with a hydrophobic core and a hydrophilic shell have been synthesized by emulsion polymerization and have been thoroughly characterized. The ability of the particles with different monomer compositions to act as catalyst carriers has been studied. Finally, the colloidal dispersions have been applied as phase transfer agents in the multiphasic rhodium-catalyzed hydroformylation of 1-octene. FINDINGS The hydrodynamic radius of the particles has been shown to be around 100 nm, and a core-shell structure could be observed by atomic force microscopy. The polymer particles were proven to act as carriers for the water-soluble hydroformylation catalyst, due to electrostatic interaction between the functionalized particles bearing ammonium groups and the sulfonated ligands of the catalyst. The particles were stable under the hydroformylation conditions and the aqueous catalyst phase could be recycled three times.
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Affiliation(s)
- D Peral
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, TC-8, 10623 Berlin, Germany
| | - D Stehl
- Department of Physics, Technische Universität Darmstadt, Alarich-Weiss-Strasse 10, 64287 Darmstadt, Germany
| | - B Bibouche
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, TC-8, 10623 Berlin, Germany
| | - H Yu
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, TC-8, 10623 Berlin, Germany
| | - J Mardoukh
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, TC-8, 10623 Berlin, Germany
| | - R Schomäcker
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, TC-8, 10623 Berlin, Germany
| | - R von Klitzing
- Department of Physics, Technische Universität Darmstadt, Alarich-Weiss-Strasse 10, 64287 Darmstadt, Germany
| | - D Vogt
- Department of Biochemical and Chemical Engineering, Technische Universität Dortmund, Emil-Figge-Strasse 66, 44227 Dortmund, Germany.
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Bozelli JC, Hou YH, Epand RM. Thermodynamics of Methyl-β-cyclodextrin-Induced Lipid Vesicle Solubilization: Effect of Lipid Headgroup and Backbone. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:13882-13891. [PMID: 29120189 DOI: 10.1021/acs.langmuir.7b03447] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The low aqueous solubility of phospholipids makes necessary the use of lipid carriers in studies ranging from lipid traffic and metabolism to the engineering of model membranes bearing lipid transverse asymmetry. One particular lipid carrier that has proven to be particularly useful is methyl-β-cyclodextrin (MβCD). To assess the interaction of MβCD with structurally different phospholipids, the present work reports the results of isothermal titration calorimetry in conjunction with dynamic light scattering measurements. The results showed that the interaction of MβCD with large unilamellar vesicles composed of a single type of lipid led to the solubilization of the lipid vesicle and, consequently, the complexation of MβCD with the lipids. This interaction is dependent on the nature of the lipid headgroup, with a preferable interaction with phosphatidylglycerol in comparison to phosphatidylcholine. It was also possible to show a role played by the phospholipid backbone in this interaction. In many cases, the differences in the transfer energy between one lipid and another in going from a bilayer to a cyclodextrin-bound state can be qualitatively explained by the energy required to extract the lipid from a bilayer. In all cases, the data showed that the solubilization of the vesicles is entropically driven with a large negative ΔCp, suggesting a mechanism dependent on the hydrophobic effect.
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Affiliation(s)
- José Carlos Bozelli
- Department of Biochemistry and Biomedical Sciences, McMaster University, Health Sciences Centre , Hamilton, Ontario L8S 4K1 Canada
| | - Yu Heng Hou
- Department of Biochemistry and Biomedical Sciences, McMaster University, Health Sciences Centre , Hamilton, Ontario L8S 4K1 Canada
| | - Richard M Epand
- Department of Biochemistry and Biomedical Sciences, McMaster University, Health Sciences Centre , Hamilton, Ontario L8S 4K1 Canada
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12
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Leclercq L. Interactions between cyclodextrins and cellular components: Towards greener medical applications? Beilstein J Org Chem 2016; 12:2644-2662. [PMID: 28144335 PMCID: PMC5238526 DOI: 10.3762/bjoc.12.261] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 11/25/2016] [Indexed: 11/23/2022] Open
Abstract
In the field of host-guest chemistry, some of the most widely used hosts are probably cyclodextrins (CDs). As CDs are able to increase the water solubility of numerous drugs by inclusion into their hydrophobic cavity, they have been widespread used to develop numerous pharmaceutical formulations. Nevertheless, CDs are also able to interact with endogenous substances that originate from an organism, tissue or cell. These interactions can be useful for a vast array of topics including cholesterol manipulation, treatment of Alzheimer's disease, control of pathogens, etc. In addition, the use of natural CDs offers the great advantage of avoiding or reducing the use of common petroleum-sourced drugs. In this paper, the general features and applications of CDs have been reviewed as well as their interactions with isolated biomolecules leading to the formation of inclusion or exclusion complexes. Finally, some potential medical applications are highlighted throughout several examples.
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Affiliation(s)
- Loïc Leclercq
- Univ. Lille, CNRS, ENSCL, UMR 8181 – UCCS - Equipe CÏSCO, F-59000 Lille, France
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13
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Core phosphine-functionalized amphiphilic nanogels as catalytic nanoreactors for aqueous biphasic hydroformylation. J Catal 2016. [DOI: 10.1016/j.jcat.2016.07.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Use of liquid crystals for imaging different inclusion abilities of α-cyclodextrin and β-cyclodextrin toward cetyltrimethyl ammonium bromide. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2015.08.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Hapiot F, Menuel S, Bricout H, Tilloy S, Monflier E. Recent developments in cyclodextrin-mediated aqueous biphasic hydroformylation and tsuji-trost reactions. Appl Organomet Chem 2015. [DOI: 10.1002/aoc.3340] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Frédéric Hapiot
- Université d'Artois; Unité de Catalyse et de Chimie du Solide - UCCS, CNRS UMR 8181, Faculté des Sciences Jean Perrin, SP18; 62307 Lens Cedex France
| | - Stéphane Menuel
- Université d'Artois; Unité de Catalyse et de Chimie du Solide - UCCS, CNRS UMR 8181, Faculté des Sciences Jean Perrin, SP18; 62307 Lens Cedex France
| | - Hervé Bricout
- Université d'Artois; Unité de Catalyse et de Chimie du Solide - UCCS, CNRS UMR 8181, Faculté des Sciences Jean Perrin, SP18; 62307 Lens Cedex France
| | - Sébastien Tilloy
- Université d'Artois; Unité de Catalyse et de Chimie du Solide - UCCS, CNRS UMR 8181, Faculté des Sciences Jean Perrin, SP18; 62307 Lens Cedex France
| | - Eric Monflier
- Université d'Artois; Unité de Catalyse et de Chimie du Solide - UCCS, CNRS UMR 8181, Faculté des Sciences Jean Perrin, SP18; 62307 Lens Cedex France
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Nardello-Rataj V, Leclercq L. Encapsulation of biocides by cyclodextrins: toward synergistic effects against pathogens. Beilstein J Org Chem 2014; 10:2603-22. [PMID: 25550722 PMCID: PMC4273244 DOI: 10.3762/bjoc.10.273] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 10/24/2014] [Indexed: 11/23/2022] Open
Abstract
Host-guest chemistry is useful for the construction of nanosized objects. Some of the widely used hosts are probably the cyclodextrins (CDs). CDs can form water-soluble complexes with numerous hydrophobic compounds. They have been widespread used in medicine, drug delivery and are of interest for the biocides encapsulation. Indeed, this enables the development of more or less complex systems that release antimicrobial agents with time. In this paper, the general features of CDs and their applications in the field of biocides have been reviewed. As the key point is the formation of biocide-CD inclusion complexes, this review deals with this in depth and the advantages of biocide encapsulation are highlighted throughout several examples from the literature. Finally, some future directions of investigation have been proposed. We hope that scientists studying biocide applications receive inspiration from this review to exploit the opportunities offered by CDs in their respective research areas.
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Affiliation(s)
- Véronique Nardello-Rataj
- Université de Lille, Sciences et Technologies, EA 4478, Chimie Moléculaire et Formulation, F-59655 Villeneuve d'Ascq Cedex, France
| | - Loïc Leclercq
- Université de Lille, Sciences et Technologies, EA 4478, Chimie Moléculaire et Formulation, F-59655 Villeneuve d'Ascq Cedex, France
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Trotta F, Caldera F, Cavalli R, Mele A, Punta C, Melone L, Castiglione F, Rossi B, Ferro M, Crupi V, Majolino D, Venuti V, Scalarone D. Synthesis and characterization of a hyper-branched water-soluble β-cyclodextrin polymer. Beilstein J Org Chem 2014; 10:2586-93. [PMID: 25550720 PMCID: PMC4273288 DOI: 10.3762/bjoc.10.271] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Accepted: 10/20/2014] [Indexed: 01/01/2023] Open
Abstract
A new hyper-branched water-soluble polymer was synthesized by reacting β-cyclodextrin with pyromellitic dianhydride beyond the critical conditions that allow the phenomenon of gelation to occur. The molar ratio between the monomers is a crucial parameter that rules the gelation process. Nevertheless, the concentration of monomers in the solvent phase plays a key role as well. Hyper-branched β-cyclodextrin-based polymers were obtained performing the syntheses with excess of solvent and cross-linking agent, and the conditions for critical dilution were determined experimentally. A hyper-branched polymer with very high water solubility was obtained and fully characterized both as for its chemical structure and for its capability to encapsulate substances. Fluorescein was used as probe molecule to test the complexation properties of the new material.
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Affiliation(s)
- Francesco Trotta
- Dipartimento di Chimica, Università di Torino, Via Pietro Giuria 7, 10125 Torino, Italy
| | - Fabrizio Caldera
- Dipartimento di Chimica, Università di Torino, Via Pietro Giuria 7, 10125 Torino, Italy
| | - Roberta Cavalli
- Dipartimento di Scienza e Tecnologia del Farmaco, Università di Torino, Via Pietro Giuria 9, 10125 Torino, Italy
| | - Andrea Mele
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Piazza L. da Vinci 32, 20132 Milano, Italy
| | - Carlo Punta
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Piazza L. da Vinci 32, 20132 Milano, Italy
| | - Lucio Melone
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Piazza L. da Vinci 32, 20132 Milano, Italy
| | - Franca Castiglione
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Piazza L. da Vinci 32, 20132 Milano, Italy
| | - Barbara Rossi
- Elettra - Sincrotrone Trieste. Strada Statale 14 km 163.5, Area Science Park, 34149 Trieste, Italy and Department of Physics, University of Trento, Via Sommarive 14, 38123 Povo, Italy
| | - Monica Ferro
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Piazza L. da Vinci 32, 20132 Milano, Italy
| | - Vincenza Crupi
- Dipartimento di Fisica e Scienza della Terra, Università di Messina, Viale F. Stagno d'Alcontres 31 Contrada Papardo, 98166 Messina, Italy
| | - Domenico Majolino
- Dipartimento di Fisica e Scienza della Terra, Università di Messina, Viale F. Stagno d'Alcontres 31 Contrada Papardo, 98166 Messina, Italy
| | - Valentina Venuti
- Dipartimento di Fisica e Scienza della Terra, Università di Messina, Viale F. Stagno d'Alcontres 31 Contrada Papardo, 98166 Messina, Italy
| | - Dominique Scalarone
- Dipartimento di Chimica, Università di Torino, Via Pietro Giuria 7, 10125 Torino, Italy
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Bleta R, Lannoy A, Machut C, Monflier E, Ponchel A. Understanding the role of cyclodextrins in the self-assembly, crystallinity, and porosity of titania nanostructures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:11812-22. [PMID: 25222478 DOI: 10.1021/la502911v] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A series of mesoporous titania photocatalysts with tailorable structural and textural characteristics was prepared in aqueous phase via a colloidal self-assembly approach using various cyclodextrins (CDs) as structure-directing agents. The photocatalysts and the structure-directing agents were characterized at different stages of the synthesis by combining X-ray diffraction, N2-adsorption, field emission scanning electron microscopy, transmission electron microscopy, UV-visible spectroscopy, dynamic light scattering, and surface tension measurements. The results demonstrate that the cyclic macromolecules efficiently direct the self-assembly of titania colloids, resulting in a fine-tuning of the crystal phase composition, crystallite size, surface area, particle morphology, pore volume, and pore size. Depending on the chemical nature of the substituents in the cyclodextrin ring, synergistic or competitive effects arising from the adsorption capacity of these cyclic oligosaccharides onto titania surface, surface-active properties, and ability to aggregate in water by intermolecular interactions were found to substantially impact the characteristics of the final material. We propose that, in contrast to the native cyclodextrins, which tend to favor the local agglomeration of titania nanoparticles due to the strong intermolecular interactions, the substitution of hydroxyl groups by a relatively large number of methoxyl or 2-hydropropoxyl ones in the β-CD derivatives allows for creating smoother interfaces, thus facilitating the self-assembly of the colloids in a more homogeneous network. The photocatalytic activity of those titania materials was evaluated in the photodegradation of a toxic herbicide, phenoxyacetic acid, and was correlated to the structural and textural characteristics of the photocatalysts.
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Affiliation(s)
- Rudina Bleta
- UCCS, UMR-CNRS 8181, Faculté des Sciences Jean Perrin, Université d'Artois , Rue Jean Souvraz, SP 18, F-62307 Lens, France
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19
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Cyclodextrin-based systems for the stabilization of metallic(0) nanoparticles and their versatile applications in catalysis. Catal Today 2014. [DOI: 10.1016/j.cattod.2014.03.030] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Menuel S, Rousseau J, Rousseau C, Vaičiūnaite E, Dodonova J, Tumkevičius S, Monflier E. Access to Pyrrole Derivatives in Water with the Assistance of Methylated Cyclodextrins. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402327] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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21
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Hapiot F, Bricout H, Menuel S, Tilloy S, Monflier E. Recent breakthroughs in aqueous cyclodextrin-assisted supramolecular catalysis. Catal Sci Technol 2014. [DOI: 10.1039/c4cy00005f] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Molnár Á, Papp A. The use of polysaccharides and derivatives in palladium-catalyzed coupling reactions. Catal Sci Technol 2014. [DOI: 10.1039/c3cy00699a] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Bleta R, Machut C, Léger B, Monflier É, Ponchel A. Coassembly of Block Copolymer and Randomly Methylated β-Cyclodextrin: From Swollen Micelles to Mesoporous Alumina with Tunable Pore Size. Macromolecules 2013. [DOI: 10.1021/ma4008303] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rudina Bleta
- Université Lille Nord de France, F-59000 Lille, France
- UCCS, Faculté des Sciences
Jean Perrin, Université d'Artois, Rue Jean Souvraz, SP 18, F-62307 Lens, France
- CNRS, UMR 8181, F-59650
Villeneuve d’Ascq, France
| | - Cécile Machut
- Université Lille Nord de France, F-59000 Lille, France
- UCCS, Faculté des Sciences
Jean Perrin, Université d'Artois, Rue Jean Souvraz, SP 18, F-62307 Lens, France
- CNRS, UMR 8181, F-59650
Villeneuve d’Ascq, France
| | - Bastien Léger
- Université Lille Nord de France, F-59000 Lille, France
- UCCS, Faculté des Sciences
Jean Perrin, Université d'Artois, Rue Jean Souvraz, SP 18, F-62307 Lens, France
- CNRS, UMR 8181, F-59650
Villeneuve d’Ascq, France
| | - Éric Monflier
- Université Lille Nord de France, F-59000 Lille, France
- UCCS, Faculté des Sciences
Jean Perrin, Université d'Artois, Rue Jean Souvraz, SP 18, F-62307 Lens, France
- CNRS, UMR 8181, F-59650
Villeneuve d’Ascq, France
| | - Anne Ponchel
- Université Lille Nord de France, F-59000 Lille, France
- UCCS, Faculté des Sciences
Jean Perrin, Université d'Artois, Rue Jean Souvraz, SP 18, F-62307 Lens, France
- CNRS, UMR 8181, F-59650
Villeneuve d’Ascq, France
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Leclercq L, Lubart Q, Aubry JM, Nardello-Rataj V. Modeling of multiple equilibria in the self-aggregation of di-n-decyldimethylammonium chloride/octaethylene glycol monododecyl ether/cyclodextrin ternary systems. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:6242-6252. [PMID: 23627717 DOI: 10.1021/la400782c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The surface tension equations of binary surfactant mixtures (di-n-decyldimethylammonium chloride and octaethylene glycol monododecyl ether) are established by combining the Szyszkowski equation of surfactant solutions, the ideal or nonideal mixing theory, and the phase separation model. For surfactant mixtures, the surface tension at the air-water interface is calculated using nonideal theory due to synergism between the two adsorbed surfactant types. The incorporation of cyclodextrin complexation model to the surface tension equations gives a robust model for the description of the surface tension isotherms of binary, ternary, and more complex systems involving numerous inclusion complexes. The surface tension data obtained experimentally shows excellent agreement with the theoretical model below and above the formation of micelles. The strong synergistic effect observed between the two surfactants is disrupted by the presence of CDs, leading to ideal behavior of ternary systems. Indeed, depending on the nature of the cyclodextrin (i.e., α, β, or γ), which allows a tuning of the cavity size, the binding constants with the surfactants are modified as well as the surface properties due to strong modification of equilibria involved in the ternary mixture.
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Affiliation(s)
- Loïc Leclercq
- Université Lille 1 , EA Chimie Moléculaire et Formulation 4478, Equipe Oxydation et Physico-chimie de la Formulation, Bât. C6, F-59655 Villeneuve d'Ascq Cedex, France
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Hapiot F, Bricout H, Tilloy S, Monflier E. Hydroformylation in aqueous biphasic media assisted by molecular receptors. Top Curr Chem (Cham) 2013; 342:49-78. [PMID: 23563584 DOI: 10.1007/128_2013_431] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The role of molecular receptors in aqueous biphasic hydroformylation of higher olefins is highlighted through a detailed analysis of their molecular recognition properties. The behavior of cyclodextrins and calixarenes as molecular receptors is especially emphasized and discussed. Their supramolecular interactions with the substrates and the water-soluble ligands proved to be an essential parameter guiding the reaction performances. The hydroformylation activity and chemo- and regio-selectivities can thus be accurately controlled by a suitable match between the receptor and the reaction components. Development outlooks are also presented.
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Affiliation(s)
- Frédéric Hapiot
- Unité de Catalyse et de Chimie du Solide, CNRS UMR 8181, Faculté des Sciences Jean Perrin, Eric Monflier, Université d'Artois, SP18, 62307, Lens Cedex, France
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26
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Obrecht L, Kamer PCJ, Laan W. Alternative approaches for the aqueous–organic biphasic hydroformylation of higher alkenes. Catal Sci Technol 2013. [DOI: 10.1039/c2cy20538f] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Characterization of β-cyclodextrins and isosorbide diesters self-assemblies: Towards new renewable surfactants. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2012.09.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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28
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Chen LF, Shen Q, Shen JP, Shi DT, Chen T, Yu HR. Studies and comparison of the liquid adsorption and surface properties of α-, β- and γ-cyclodextrins by FTIR and capillary rise method. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2012.07.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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29
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Yáñez C, Cañete-Rosales P, Castillo JP, Catalán N, Undabeytia T, Morillo E. Cyclodextrin inclusion complex to improve physicochemical properties of herbicide bentazon: exploring better formulations. PLoS One 2012; 7:e41072. [PMID: 22952577 PMCID: PMC3428336 DOI: 10.1371/journal.pone.0041072] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Accepted: 06/17/2012] [Indexed: 11/24/2022] Open
Abstract
The knowledge of the host-guest complexes using cyclodextrins (CDs) has prompted an increase in the development of new formulations. The capacity of these organic host structures of including guest within their hydrophobic cavities, improves physicochemical properties of the guest. In the case of pesticides, several inclusion complexes with cyclodextrins have been reported. However, in order to explore rationally new pesticide formulations, it is essential to know the effect of cyclodextrins on the properties of guest molecules. In this study, the inclusion complexes of bentazon (Btz) with native βCD and two derivatives, 2-hydroxypropyl-β-cyclodextrin (HPCD) and sulfobutylether-β-cyclodextrin (SBECD), were prepared by two methods: kneading and freeze-drying, and their characterization was investigated with different analytical techniques including Fourier transform infrared spectroscopy (FT-IR), differential thermal analysis (DTA), X-ray diffractometry (XRD) and differential pulse voltammetry (DPV). All these approaches indicate that Btz forms inclusion complexes with CDs in solution and in solid state, with a stoichiometry of 1:1, although some of them are obtained in mixtures with free Btz. The calculated association constant of the Btz/HPCD complex by DPV was 244±19 M(-1) being an intermediate value compared with those obtained with βCD and SBECD. The use of CDs significantly increases Btz photostability, and depending on the CDs, decreases the surface tension. The results indicated that bentazon forms inclusion complexes with CDs showing improved physicochemical properties compared to free bentazon indicating that CDs may serve as excipient in herbicide formulations.
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Affiliation(s)
- Claudia Yáñez
- Departamento de Química Orgánica y Fisicoquímica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile.
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Purkayastha P, Jaffer SS, Ghosh P. Physicochemical perspective of cyclodextrin nano and microaggregates. Phys Chem Chem Phys 2012; 14:5339-48. [PMID: 22428167 DOI: 10.1039/c2cp24052a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
''Chemistry beyond the molecule'' is the nickname for supramolecular chemistry. This branch of study is based on molecular recognition that is host-guest chemistry. A number of potential hosts have been defined and applied in scores of studies. Among all potential hosts, cyclodextrins occupy a high position due to their characteristic solubilisation capability and biocompatibility. In the present article we are revisiting the host-guest aspects of cyclodextrins from a physicochemical perspective. We present details of formation and applications of cyclodextrin nanoaggregates induced by guest molecules, the concerned thermodynamics behind the process and also the effect of concentration of the guest molecules on the morphology of the aggregates. This article reviews the topic mainly from the spectroscopic point of view.
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Affiliation(s)
- Pradipta Purkayastha
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur 741252, WB, India.
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Supramolecular effects on the antifungal activity of cyclodextrin/di-n-decyldimethylammonium chloride mixtures. Eur J Pharm Sci 2012; 46:336-45. [PMID: 22406295 DOI: 10.1016/j.ejps.2012.02.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Revised: 02/20/2012] [Accepted: 02/21/2012] [Indexed: 11/21/2022]
Abstract
Candidiasis infections are growing problem worldwide especially for the immunocompromised individuals. Di-n-decyldimethylammonium chloride is one of the most common antifungal agents used to clean medical devices. The current study examines the antifungal mechanism of di-n-decyldimethylammonium cation and its cyclodextrin inclusion complexes. Depending on the type of cyclodextrin (α-, β- or γ-CD), inclusion complexes can be as active as ammonium alone in terms of microorganism death (fungicidal activity). Moreover, with β-CD inclusion complexes, synergism is observed against fungus growth (fungistatic activity). Based on molecular dynamics, we propose a mechanism supported by cell number, selective electrode and ζ-potential measurements as a function of time. The mechanism involves four steps: (i) the positively-charged complex diffuses through the solution, (ii) it adsorbs onto the fungus membrane surface by electrostatic interaction, (iii) then it dissociates and the ammonium inserts in the microorganism membrane, and (iv) the change of the cell surface charge induces cell lysis.
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Carlstedt J, Bilalov A, Krivtsova E, Olsson U, Lindman B. Cyclodextrin-surfactant coassembly depends on the cyclodextrin ability to crystallize. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:2387-2394. [PMID: 22217424 DOI: 10.1021/la203673w] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Full equilibrium phase diagrams are presented for two ternary systems composed of the cationic surfactant dodecyltrimethylammonium bromide (DTAB), water (D(2)O), and a cyclodextrin, either β-cyclodextrin (β-CD) or (2-hydroypropyl)-β-cyclodextrin (2HPβCD). (2)H NMR, SAXS, WAXS, and visual examination were used to determine the phase boundaries and characterize the nature of the phases formed. Additionally, diffusion (1)H NMR was used to investigate parts of the diagrams. The water solubility of 2HPβCD is 80% (w/w), whereas it is only 1.85% (w/w) for β-CD. Solubility increases for both species upon complexation with DTAB; while the increase is minute for 2HPβCD, it is dramatic for β-CD. Both systems displayed an isotropic liquid solution (L(1)) one-phase region, the extension of which differs extensively between the two systems. Additionally, the DTAB:2HPβCD:water system also comprised a normal hexagonal (H(1)) area, which was not found for the DTAB:β-CD:water system. In the DTAB:β-CD:water system, on the other hand, we found cocrystallization of DTAB and β-CD. From this work we conclude that DTAB and CD molecules form 1:1 inclusion complexes with high affinities. Moreover, we observed indications of an association of 2HPβCD to DTAB micelles in the isotropic solution phase, which was not the case for β-CD and DTAB micelles. This is, to our knowledge, the first complete phase diagrams of surfactant-CD mixtures; as a novel feature it includes the observation of cocrystallization at high concentrations.
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Affiliation(s)
- Jonas Carlstedt
- Physical Chemistry, Center of Chemistry and Chemical Engineering, Lund University, POB 124, 221 00 Lund, Sweden.
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33
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Syringeable Pluronic–α-cyclodextrin supramolecular gels for sustained delivery of vancomycin. Eur J Pharm Biopharm 2012; 80:103-12. [DOI: 10.1016/j.ejpb.2011.09.017] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Revised: 09/27/2011] [Accepted: 09/30/2011] [Indexed: 02/03/2023]
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34
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Manasco JL, Saquing CD, Tang C, Khan SA. Cyclodextrin fibers via polymer-free electrospinning. RSC Adv 2012. [DOI: 10.1039/c2ra00004k] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Ferreira M, Legrand FX, Machut C, Bricout H, Tilloy S, Monflier E. Aqueous biphasic hydroformylation in the presence of cyclodextrins mixtures: evidence of a positive synergistic effect. Dalton Trans 2012; 41:8643-7. [DOI: 10.1039/c2dt30646h] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Herbois R, Noël S, Léger B, Bai L, Roucoux A, Monflier E, Ponchel A. Cyclodextrins as growth controlling agents for enhancing the catalytic activity of PVP-stabilized Ru(0) nanoparticles. Chem Commun (Camb) 2012; 48:3451-3. [DOI: 10.1039/c2cc17355g] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Zhao W, Zhong Q. Recent advance of cyclodextrins as nanoreactors in various organic reactions: a brief overview. J INCL PHENOM MACRO 2011. [DOI: 10.1007/s10847-011-9983-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Testai L, Cecchetti V, Sabatini S, Martelli A, Breschi MC, Calderone V. Effects of K openers on the QT prolongation induced by HERG-blocking drugs in guinea-pigs. J Pharm Pharmacol 2011; 62:924-30. [PMID: 20636881 DOI: 10.1211/jpp.62.06.0014] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
OBJECTIVES This work evaluated the potential usefulness of pharmacological activation of cardiac ATP-sensitive potassium channels (K(ATP)) in the prevention of drug-induced QT prolongation in anaesthetised guinea-pigs. Prolongation of cardiac repolarisation and QT interval is an adverse effect of many drugs blocking HERG potassium channels. This alteration can be dangerously arrhythmogenic and has been associated with the development of a particular form of ventricular tachyarrhythmia known as torsade de pointes. METHODS The well-known K(ATP) openers aprikalim, cromakalim and pinacidil were used. Moreover, three benzothiazine derivatives, which have been reported as potent activators of K(ATP) channels, were also used. KEY FINDINGS Pharmacological activation of K(ATP) channels caused a reduction of the QT prolongation, induced by astemizole, cisapride, quinidine and thioridazine. In contrast, the QT prolongation induced by haloperidol, sotalol and terfenadine, which are known to block HERG channels but also K(ATP) channels, was not influenced by K(ATP) activation. Glibenclamide and tolbutamide (non-selective blockers of K(ATP) channels expressed both in sarcolemmal and in mitochondrial membranes) antagonised the effects of K(ATP) openers, whereas 5-hydroxydecanoic acid (selective blocker of the mitochondrial K(ATP) channels) failed to antagonise the effects of K(ATP) openers, indicating that only the sarcolemmal K(ATP) is involved in the cardioprotective activity. CONCLUSIONS The data suggest that pharmacological K(ATP) activation might represent an option for treatment of patients exposed to QT-prolonging drugs.
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Affiliation(s)
- Lara Testai
- Dipartimento di Psichiatria, Neurobiologia, Farmacologia e Biotecnologie, Università di Pisa, Pisa, Italy
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Six N, Guerriero A, Landy D, Peruzzini M, Gonsalvi L, Hapiot F, Monflier E. Supramolecularly controlled surface activity of an amphiphilic ligand. Application to aqueous biphasic hydroformylation of higher olefins. Catal Sci Technol 2011. [DOI: 10.1039/c1cy00156f] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Leclercq L, Schmitzer AR. Assembly of Tunable Supramolecular Organometallic Catalysts with Cyclodextrins. Organometallics 2010. [DOI: 10.1021/om1006215] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Loïc Leclercq
- Department of Chemistry, Université de Montréal, C.P. 6128 Succursale Centre-ville, Montréal, Québec, H3C 3J7, Canada
| | - Andreea R. Schmitzer
- Department of Chemistry, Université de Montréal, C.P. 6128 Succursale Centre-ville, Montréal, Québec, H3C 3J7, Canada
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42
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Six N, Menuel S, Bricout H, Hapiot F, Monflier E. Ditopic Cyclodextrin-Based Receptors: New Perspectives in Aqueous Organometallic Catalysis. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000027] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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43
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Chemically Modified Cyclodextrins: An Attractive Class of Supramolecular Hosts for the Development of Aqueous Biphasic Catalytic Processes. SUSTAINABILITY 2009. [DOI: 10.3390/su1040924] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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44
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Cobalt catalyzed hydroformylation of higher olefins in the presence of chemically modified cyclodextrins. CATAL COMMUN 2009. [DOI: 10.1016/j.catcom.2009.06.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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45
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Shaughnessy KH. Hydrophilic ligands and their application in aqueous-phase metal-catalyzed reactions. Chem Rev 2009; 109:643-710. [PMID: 19152291 DOI: 10.1021/cr800403r] [Citation(s) in RCA: 375] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Kevin H Shaughnessy
- Department of Chemistry and the Center for Green Manufacturing, The University of Alabama, Box 870336, Tuscaloosa, Alabama 35487-0336, USA.
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46
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Nogueiras-Nieto L, Alvarez-Lorenzo C, Sandez-Macho I, Concheiro A, Otero-Espinar FJ. Hydrosoluble Cyclodextrin/Poloxamer Polypseudorotaxanes at the Air/Water Interface, in Bulk Solution, and in the Gel State. J Phys Chem B 2009; 113:2773-82. [DOI: 10.1021/jp809806w] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Luis Nogueiras-Nieto
- Departamento de Farmacia y Tecnologia Farmaceutica and Departamento de Quimica Fisica, Universidad de Santiago de Compostela, 15782-Santiago de Compostela, Spain
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacia y Tecnologia Farmaceutica and Departamento de Quimica Fisica, Universidad de Santiago de Compostela, 15782-Santiago de Compostela, Spain
| | - Isabel Sandez-Macho
- Departamento de Farmacia y Tecnologia Farmaceutica and Departamento de Quimica Fisica, Universidad de Santiago de Compostela, 15782-Santiago de Compostela, Spain
| | - Angel Concheiro
- Departamento de Farmacia y Tecnologia Farmaceutica and Departamento de Quimica Fisica, Universidad de Santiago de Compostela, 15782-Santiago de Compostela, Spain
| | - Francisco J. Otero-Espinar
- Departamento de Farmacia y Tecnologia Farmaceutica and Departamento de Quimica Fisica, Universidad de Santiago de Compostela, 15782-Santiago de Compostela, Spain
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47
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Ding L, Jiao X, Deng J, Zhao W, Yang W. Catalytic Polymerizations of Hydrophobic, Substituted, Acetylene Monomers in an Aqueous Medium by Using a Monomer/Hydroxypropyl-β
-cyclodextrin Inclusion Complex. Macromol Rapid Commun 2008; 30:120-5. [DOI: 10.1002/marc.200800601] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2008] [Revised: 10/28/2008] [Accepted: 10/28/2008] [Indexed: 11/09/2022]
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48
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Mourer M, Hapiot F, Tilloy S, Monflier E, Menuel S. Easily Accessible Mono- and Polytopic β-Cyclodextrin Hosts by Click Chemistry. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800728] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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49
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Leclercq L, Noujeim N, H. Sanon S, Schmitzer AR. Study of the Supramolecular Cooperativity in the Multirecognition Mechanism of Cyclodextrins/Cucurbituril/Disubstituted Diimidazolium Bromides. J Phys Chem B 2008; 112:14176-84. [DOI: 10.1021/jp805990t] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Loïc Leclercq
- Department of Chemistry, Université de Montréal, C.P. 6128 Succursale Centre-ville, Montréal, Québec, H3C 3J7, Canada
| | - Nadim Noujeim
- Department of Chemistry, Université de Montréal, C.P. 6128 Succursale Centre-ville, Montréal, Québec, H3C 3J7, Canada
| | - Samantha H. Sanon
- Department of Chemistry, Université de Montréal, C.P. 6128 Succursale Centre-ville, Montréal, Québec, H3C 3J7, Canada
| | - Andreea R. Schmitzer
- Department of Chemistry, Université de Montréal, C.P. 6128 Succursale Centre-ville, Montréal, Québec, H3C 3J7, Canada
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50
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Shukla RS, Srivastava VK, Khokhar MD, Jasra RV. The kinetics and thermodynamics of a novel efficient mixed water–1,4-dioxan solvent for the effective complexation of a neutral ruthenium complex with carbon monoxide at atmospheric pressure. INT J CHEM KINET 2008. [DOI: 10.1002/kin.20318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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